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USD ($) / shares

USD ($)

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   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The following are the significant accounting and reporting policies applied by Hudson
   City Bancorp and its wholly-owned subsidiary, Hudson City Savings, in the preparation
   of the accompanying consolidated financial statements. The consolidated financial
   statements have been prepared in conformity with GAAP. All significant intercompany
   transactions and balances have been eliminated in consolidation. As used in these
   consolidated financial statements, &amp;#8220;Hudson City&amp;#8221; refers to Hudson City Bancorp, Inc. or
   Hudson City Bancorp, Inc. and its consolidated subsidiary, depending on the context. In
   preparing the consolidated financial statements, management is required to make
   estimates and assumptions that affect the reported amounts of assets and liabilities as
   of the date of the statements of financial condition and revenues and expenses for
   the period. Actual results could differ from these estimates. The ALL is a material
   estimate that is particularly susceptible to near-term change. The current economic
   environment has increased the degree of uncertainty inherent in this material estimate.
   In addition, bank regulators, as an integral part of their supervisory function,
   periodically review our allowance for loan losses. These regulatory agencies have the
   ability to require us, as they can require all banks, to increase our provision for
   loan losses or to recognize further charge-offs based upon their judgments, which may
   be different from ours. Any increase in the allowance required by these regulatory
   agencies could adversely affect our financial condition and results of operations.
   &lt;/div&gt;
   &lt;/div&gt;
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 -Subparagraph c

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 -Name Regulation S-X (SX)
 -Number 210
 -Section 02
 -Paragraph k
 -Article 1

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 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 18
 -Paragraph 5, 6, 16-19

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 -Publisher SEC
 -Name Regulation S-X (SX)
 -Number 210
 -Section 02, 03
 -Article 3A

Reference 5: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Research Bulletin (ARB)
 -Number 51
 -Paragraph 2-6

Reference 6: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 140
 -Paragraph 46

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 -Name Accounting Principles Board Opinion (APB)
 -Number 18
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 -Publisher FASB
 -Name Emerging Issues Task Force (EITF)
 -Number 97-2

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 -Name Emerging Issues Task Force (EITF)
 -Number 96-16

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   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;For purposes of reporting cash flows, cash and cash equivalents includes cash on hand,
   amounts due from banks and federal funds sold. Generally, federal funds are sold for
   one-day periods. Cash reserves are required to be maintained on deposit with the
   Federal Reserve Bank of New York based on deposits. The amount of the required
   reserves for the years ended December&amp;#160;31, 2010 and 2009 was $19.3&amp;#160;million and $24.5
   million, respectively.
   &lt;/div&gt;
   &lt;/div&gt;
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 -Number 203
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 -Name Regulation S-X (SX)
 -Number 210
 -Section 02
 -Paragraph 1
 -Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
 -Paragraph 7, 8, 9, 10

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 -Publisher AICPA
 -Name Technical Practice Aid (TPA)
 -Number 2110
 -Paragraph 6

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   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Mortgage-backed securities include GSEs and U.S. Government agency pass-through
   certificates, which represent participating interests in pools of long-term first
   mortgage loans originated and serviced by third-party issuers of the securities, and
   real estate mortgage investment conduits (&amp;#8220;REMICs&amp;#8221;), which are securities derived by
   reallocating cash flows from mortgage pass-through securities or from pools of mortgage
   loans held by a trust. REMICs are a form of, and are often referred to as,
   collateralized mortgage obligations.
   &lt;/div&gt;
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   &lt;i&gt;
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   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Mortgage-backed securities are classified as either held to maturity or available for
   sale. For the years ended December&amp;#160;31, 2010, 2009 and 2008, we did not maintain a
   trading portfolio. Mortgage-backed securities classified as held to maturity are stated
   at cost, adjusted for amortization of premiums and accretion of discounts. Amortization
   and accretion is reflected as an adjustment to interest income over the life of the
   security, adjusted for estimated prepayments, using the effective interest method. Hudson
   City has both the ability and the positive intent to hold these investment securities
   to maturity. Mortgage-backed securities available for sale are carried at fair value,
   with unrealized gains and losses, net of tax, reported as a component of other
   comprehensive income or loss, which is included in shareholders&amp;#8217; equity. Amortization
   and accretion of premiums and discounts are reflected as an adjustment to interest
   income over the life of the security, adjusted for estimated prepayments, using the
   effective interest method. Realized gains and losses are recognized when securities are
   sold using the specific identification method. The estimated fair value of substantially
   all of these securities is determined by the use of market prices obtained from
   independent third-party pricing services. We conduct a periodic review and evaluation of
   the securities portfolio to determine if a decline in the fair value of any security
   below its cost basis is other-than-temporary. Our evaluation of other-than-temporary
   impairment considers the duration and severity of the impairment, our intent to sell
   the security and whether it is more likely than not that we will be required to
   sell before full recovery of our investment or maturity. For mortgage-backed securities
   deemed to be other-than-temporarily impaired, the security is written down to a new
   cost basis with the estimated credit loss charged to income as a component of
   non-interest expense and the non-credit related impairment loss charged to other
   comprehensive income. See &amp;#8220;Critical Accounting Policies  &amp;#8212;  Securities Impairment&amp;#8221;.
   &lt;/div&gt;
   &lt;/div&gt;
   &lt;/div&gt;
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   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Investment securities are classified as either held to maturity or available for sale.
   For the years ended December&amp;#160;31, 2010, 2009 and 2008, we did not maintain a trading
   portfolio. Investment securities classified as held to maturity are stated at cost,
   adjusted for amortization of premiums and accretion of discounts. Amortization and
   accretion is reflected as an adjustment to interest income over the life of the
   security using the effective interest method. Hudson City has both the ability and the
   positive intent to hold these investment securities to maturity. Securities available
   for sale are carried at fair value, with unrealized gains and losses, net of tax,
   reported as a component of accumulated other comprehensive income or loss, which is
   included in shareholders&amp;#8217; equity. Amortization and accretion of premiums and discounts
   are reflected as an adjustment to interest income over the life of the security using
   the effective interest method. Realized gains and losses are recognized when securities
   are sold or called using the specific identification method. The estimated fair value
   of substantially all of these securities is determined by the use of quoted market
   prices obtained from independent third-party pricing services. We conduct a periodic
   review and evaluation of the securities portfolio to determine if a decline in the
   fair value of any security below its cost basis is other-than-temporary. Our evaluation
   of other-than-temporary impairment considers the duration and severity of the
   impairment, our intent to sell the security and whether it is more likely than not
   that we will be required to sell before full recovery of our investment or maturity.
   For debt securities deemed to be other-than-temporarily impaired, the security is
   written down to a new cost basis with the estimated credit loss charged to income as
   a component of non-interest expense and the non-credit related impairment loss charged
   to other comprehensive income. For equity securities that are deemed to be
   other-than-temporarily impaired, the security is written down to a new cost basis and
   the resulting loss is charged to income as a component of non-interest expense. See
   &amp;#8220;Critical Accounting Policies  &amp;#8212;  Securities Impairment&amp;#8221;.
   &lt;/div&gt;
   &lt;/div&gt;
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 115
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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 -Name Regulation S-X (SX)
 -Number 210
 -Section 02
 -Paragraph 2, 12
 -Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 5
 -Section M

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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 -Name FASB Staff Position (FSP)
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 107
 -Paragraph 10, 11

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Investment Securities</Label></Row><Row><Id>7</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_ReceivablesPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table5 - us-gaap:ReceivablesPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Loans are stated at their principal amounts outstanding. Interest income on loans is
   accrued and credited to income as earned. Net loan origination fees and broker costs
   are deferred and amortized to interest income over the life of the loan using the
   effective interest method. Amortization and accretion of premiums and discounts is
   reflected as an adjustment to interest income over the life of the purchased loan
   using the effective interest method.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Existing customers in good credit standing are permitted to modify the terms of their
   mortgage loan, for a fee, to the terms of the currently offered fixed-rate product
   with a similar or reduced period to maturity than the current remaining period of
   their existing loan. The modified terms of these loans are at least as favorable to
   us as the terms of mortgage loans we offer to new customers. The fee assessed for
   modifying the mortgage loan is deferred and accreted over the life of the modified
   loan using the effective interest method. Such accretion is reflected as an adjustment
   to interest income. We have determined that the modification of the terms of the loan
   (i.e. the change in rate and period to maturity), represents a more than minor
   change to the loan. Accordingly, pre-modification deferred fees or costs associated with
   the mortgage loan are recognized in interest income at the time of the modification.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;A loan is considered delinquent when we have not received a payment within 30&amp;#160;days
   of its contractual due date. The accrual of income on loans that  are not guaranteed by a U.S. Government agency is
   generally discontinued when interest or principal payments are 90&amp;#160;days in arrears or
   when the timely collection of such income is doubtful. Loans on which the accrual of
   income has been discontinued are designated as non-accrual loans and outstanding
   interest previously credited to income is reversed. Interest income on non-accrual loans
   and impaired loans is recognized in the period collected unless the ultimate
   collection of principal is considered doubtful. A non-accrual loan is returned to
   accrual status when factors indicating doubtful collection no longer exist.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Hudson City defines the population of potential impaired loans to be all non-accrual
   commercial real estate and multi-family loans. Impaired loans are individually assessed
   to determine that the loan&amp;#8217;s carrying value is not in excess of the fair value of
   the collateral or the present value of the loan&amp;#8217;s expected future cash flows. Smaller
   balance homogeneous loans that are collectively evaluated for impairment, such as
   residential mortgage loans and consumer loans, are specifically excluded from the
   impaired loan portfolio.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes an entity's accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Regulation S-X (SX)
 -Number 210
 -Section 02
 -Paragraph 3-5
 -Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 114
 -Paragraph 20
 -Subparagraph b

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Emerging Issues Task Force (EITF)
 -Number 92-5

Reference 4: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Statement of Position (SOP)
 -Number 01-6
 -Paragraph 13

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Loans</Label></Row><Row><Id>8</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_AllowanceForLoanLossesPolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Allowance for loan losses.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table6 - hcbk:AllowanceForLoanLossesPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The allowance for loan losses has been determined in accordance with GAAP, under which
   we are required to maintain adequate allowances for loan losses. We are responsible
   for the timely and periodic determination of the amount of the allowance required. We
   believe that our ALL is adequate to cover specifically identifiable loan losses, as
   well as estimated losses inherent in our portfolio for which certain losses are
   probable but not specifically identifiable.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Our primary lending emphasis is the origination and purchase of one- to four-family
   first mortgage loans on residential properties and, to a lesser extent, second mortgage
   loans on one- to four-family residential properties resulting in a loan concentration
   in residential first mortgage loans at December&amp;#160;31, 2010. As a result of our lending
   practices, we also have a concentration of loans secured by real property located in
   New Jersey, New York and Connecticut that is 78.4% of our total loans. Based on the
   composition of our loan portfolio and the growth in our loan portfolio, we believe
   the primary risks inherent in our portfolio are increases in interest rates, a decline
   in the economy, rising unemployment levels and a decline in real estate market
   values. Any one or a combination of these events may adversely affect our loan
   portfolio resulting in increased delinquencies, charge-offs and future levels of loan
   loss provisions. Our AQC considers these trends in market conditions, as well as other
   factors, in estimating the ALL.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Due to the nature of our loan portfolio, our evaluation of the adequacy of our ALL
   is performed primarily on a &amp;#8220;pooled&amp;#8221; basis. Each month we prepare an analysis which
   categorizes the entire loan portfolio by certain risk characteristics such as loan type
   (one- to four-family, multi-family, commercial, construction, etc.), loan source and
   payment status (i.e., current or number of days delinquent). Loans with known potential
   losses are
   categorized separately. We assign potential loss factors to the payment status
   categories on the basis of our assessment of the potential risk inherent in each loan
   type. These factors are periodically reviewed for appropriateness giving consideration
   to charge-off history, delinquency trends, portfolio growth and the status of the
   regional economy and housing market, in order to ascertain that the loss factors cover
   probable and estimable losses inherent in the portfolio. Based on our recent loss
   experience on non-performing loans, we increased certain loss factors used in our
   quantitative analysis of the ALL for certain loan types during 2010.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;On occasion, we agree to modify the contractual terms of a borrower&amp;#8217;s loan. In
   instances where such modifications represent a concession to a borrower experiencing
   financial difficulty, the modification is considered a troubled debt restructuring. Loans
   modified in a troubled debt restructuring are placed on non-accrual status until we
   determine that future collection of principal and interest is reasonably assured. Loans
   modified in a troubled debt restructuring which have complied with the terms of their
   restructure agreement for a satisfactory period of time are excluded from non-performing
   assets.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;We maintain the ALL through provisions for loan losses that we charge to income. We
   charge losses on loans against the ALL when we believe the collection of loan
   principal is unlikely. We establish the provision for loan losses based on our
   systematic process which reflects various asset quality trends and recent charge-off
   experience. We apply this process and methodology in a consistent manner and we
   reassess and modify the estimation methods and assumptions used in response to changing
   conditions.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Allowance for loan losses.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Allowance for Loan Losses</Label></Row><Row><Id>9</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_FederalHomeLoanBankOfSpecificStockPolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Federal Home Loan Bank Of Specific Stock Policy Text Block.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table7 - hcbk:FederalHomeLoanBankOfSpecificStockPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;As a member of the FHLB, we are required to acquire and hold shares of FHLB Class
   B stock. Our holding requirement varies based on our activities, primarily our
   outstanding borrowings, with the FHLB. Our investment in FHLB stock is carried at
   cost. We conduct a periodic review and evaluation of our FHLB stock to determine if
   any impairment exists.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Federal Home Loan Bank Of Specific Stock Policy Text Block.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Federal Home Loan Bank of New York Stock</Label></Row><Row><Id>10</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_RealEstatePolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table8 - us-gaap:RealEstatePolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Foreclosed real estate is property acquired through foreclosure or deed in lieu of
   foreclosure. Write-downs to fair value (net of estimated cost to sell) at the time of
   acquisition are charged to the ALL. After acquisition, foreclosed properties are held
   for sale and carried at the lower of fair value less estimated selling costs. Fair
   value is estimated through current appraisals, where practical, or an inspection and a
   comparison of the property securing the loan with similar properties in the area by
   either a licensed appraiser or real estate broker. Subsequent provisions for losses,
   which may result from the ongoing periodic valuations of these properties, are charged
   to income in the period in which they are identified. Carrying costs, such as
   maintenance and taxes, are charged to operating expenses as incurred.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes the accounting policies that pertain to entities that primarily develop and then sell real property at retail or otherwise.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Foreclosed Real Estate</Label></Row><Row><Id>11</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_PropertyPlantAndEquipmentPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table9 - us-gaap:PropertyPlantAndEquipmentPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Land is carried at cost. Buildings, leasehold improvements and furniture, fixtures and
   equipment are carried at cost, less accumulated depreciation and leasehold amortization.
   Buildings are depreciated over their estimated useful lives using the straight-line
   method. Furniture, fixtures and equipment are depreciated over their estimated useful
   lives using the double-declining balance method. Leasehold improvements are amortized
   over the shorter of their estimated useful lives or the term of the respective
   leases. The costs for major improvements and renovations are capitalized, while
   maintenance, repairs and minor improvements are charged to operating expenses as
   incurred. Gains and losses on dispositions are reflected currently as other non-interest
   income or expense.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes an entity's accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Research Bulletin (ARB)
 -Number 43
 -Chapter 9
 -Section C
 -Paragraph 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 144
 -Paragraph 7

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 22
 -Paragraph 12, 13

Reference 4: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 34
 -Paragraph 8, 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Regulation S-X (SX)
 -Number 210
 -Section 02
 -Paragraph 13
 -Subparagraph a
 -Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 12
 -Paragraph 5
 -Subparagraph d

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Banking Premises and Equipment</Label></Row><Row><Id>12</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table10 - us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;FASB guidance requires that goodwill and intangible assets with indefinite useful lives
   no longer be amortized, but instead be tested for impairment at least annually using
   a fair-value based two-step approach. Goodwill and other intangible assets amounted to
   $156.7&amp;#160;million and were recorded as a result of Hudson City Bancorp&amp;#8217;s acquisition of
   Sound Federal Bancorp, Inc. in 2006. The other intangible assets are amortizing
   intangible assets and as such are evaluated for impairment in accordance with FASB
   guidance.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The first step (&amp;#8220;Step 1&amp;#8221;) used to identify potential impairment involves comparing each
   reporting unit&amp;#8217;s estimated fair value to its carrying amount, including goodwill. As a
   community-oriented bank, substantially all of the Company&amp;#8217;s operations involve the
   delivery of loan and deposit products to customers and these operations constitute the
   Company&amp;#8217;s only segment for financial reporting purposes. If the estimated fair value of
   a reporting unit exceeds its carrying amount, goodwill is not considered to be
   impaired. If the carrying amount exceeds the estimated fair value, there is an
   indication of potential impairment and the second step (&amp;#8220;Step 2&amp;#8221;) is performed to
   measure the amount. Step 2 involves calculating an implied fair value of goodwill for
   each reporting unit for which impairment was indicated in Step 1. The implied fair
   value of goodwill is determined in a manner similar to the amount of goodwill
   calculated in a business combination by measuring the excess of the estimated fair
   value of the reporting unit, as determined in Step 1, over the aggregate estimated
   fair values of the individual assets, liabilities, and identifiable intangibles, as if
   the reporting unit was being acquired at the impairment test date. Subsequent reversal
   of goodwill impairment losses is not permitted.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Quoted market prices in active markets are the best evidence of fair value and are
   used as the basis for measurement, when available. Other acceptable valuation methods
   include present-value measurements based on multiples of earnings or revenues, or
   similar performance measures. We utilized quoted market prices as of our impairment
   test dates as well as control premiums in determining the estimated fair value of our
   reporting unit. We also used market multiples based on recent acquisition activity to
   calculate our estimated fair value. In determining the appropriate control premium,
   management took into consideration, among other factors, control premiums used in
   comparable transactions. As a result of our analysis we have concluded that the fair
   value of goodwill, for purposes of the goodwill impairment analysis, is in excess of
   it&amp;#8217;s carrying amount. Therefore, we did not recognize any impairment of goodwill or
   other intangible assets for the years ended December&amp;#160;31, 2010, 2009 and 2008.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes an entity's accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 144
 -Paragraph 7-18, 22

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 142
 -Paragraph 4, 11-23, 26, 34

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Goodwill and Other Intangible Assets</Label></Row><Row><Id>13</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_IncomeTaxPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table11 - us-gaap:IncomeTaxPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;We utilize the asset and liability method of accounting for income taxes. Under this
   method, deferred tax assets and liabilities are recognized for the future tax
   consequences attributable to differences between the financial statement carrying amounts
   of existing assets and liabilities and their respective tax bases.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Deferred tax assets and liabilities are measured using enacted tax rates expected to
   apply to taxable income in the years in which those temporary differences are expected
   to be recovered or settled. The effect on deferred tax assets and liabilities of a
   change in tax rates is recognized in income in the period that includes the enactment
   date. Certain tax benefits attributable to stock options and restricted stock are
   credited to additional paid-in capital. Tax positions taken, or expected to be taken,
   in a tax return and which meet recognition thresholds, are recognized in our financial
   statements based on measurement attributes prescribed in accounting guidance. Accruals
   of interest and penalties related to unrecognized tax benefits are recognized in income
   tax expense.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes an entity's accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 4
 -Paragraph 11

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name FASB Interpretation (FIN)
 -Number 48
 -Paragraph 20

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 109
 -Paragraph 6-34, 43, 47, 49

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Income Taxes</Label></Row><Row><Id>14</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_CompensationRelatedCostsPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table12 - us-gaap:CompensationRelatedCostsPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Hudson City maintains certain noncontributory retirement and postretirement benefit plans,
   which cover employees hired prior to August&amp;#160;1, 2005 who have met the eligibility
   requirements of the plans. Certain health care and life insurance benefits are provided
   for retired employees. The expected cost of benefits provided for retired employees is
   actuarially determined and accrued ratably from the date of hire to the date the
   employee is fully eligible to receive the benefits.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The accounting guidance related to retirement benefits requires an employer to: (a)
   recognize in its statement of financial position an asset for a plan&amp;#8217;s overfunded
   status or a liability for a plan&amp;#8217;s underfunded status; (b)&amp;#160;measure a plan&amp;#8217;s assets
   and its obligations that determine its funded status as of the end of the employer&amp;#8217;s
   fiscal year; and (c)&amp;#160;recognize, in comprehensive income, changes in the funded status
   of a defined benefit postretirement plan in the year in which the changes occur. The
   accounting guidance requires that plan assets and benefit obligations be measured as of
   the date of the employer&amp;#8217;s fiscal year-end statement of financial condition. This
   requirement became effective for the Company as of December&amp;#160;31, 2008. We have
   historically used our fiscal year-end as the measurement date for plan assets and
   benefit obligations and therefore the measurement date provisions of the FASB guidance
   did not affect us.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The ESOP is accounted for in accordance with FASB guidance related to employee stock
   ownership plans. The funds borrowed by the ESOP from Hudson City Bancorp to purchase
   Hudson City Bancorp common stock are being repaid from Hudson City Savings&amp;#8217;
   contributions and dividends paid on unallocated ESOP shares over a period of up to 40
   years. Hudson City common stock not allocated to participants is recorded as a
   reduction of stockholders&amp;#8217; equity at cost. Compensation expense for the ESOP is based
   on the average market price of our stock during each quarter.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes the entity's accounting policies for salaries, bonuses, incentive awards, postretirement and postemployment benefits granted to its employees, including share-based arrangements; describes its methodologies for measurement, and the bases for recognizing related assets and liabilities and recognizing and reporting compensation expense.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 123R
 -Paragraph 4, 9-15, A240

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5, 6, 7, 9, 11, 12, 13

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Employee Benefit Plans</Label></Row><Row><Id>15</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_StockBasedCompensationPolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Stock based compensation.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table13 - hcbk:StockBasedCompensationPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Effective January&amp;#160;1, 2006, Hudson City Bancorp adopted FASB guidance using the modified
   prospective method. Stock-based compensation expense is recognized for new stock-based
   awards granted, modified, repurchased or cancelled after January&amp;#160;1, 2006, and the
   remaining portion of the requisite service under previously granted unvested awards
   outstanding as of January&amp;#160;1, 2006 based upon the grant-date fair value of those
   awards.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Stock based compensation.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Stock-Based Compensation</Label></Row><Row><Id>16</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_BankOwnedLifeInsurancePolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Bank-Owned Life Insurance.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table14 - hcbk:BankOwnedLifeInsurancePolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Bank-owned life insurance (&amp;#8220;BOLI&amp;#8221;) is accounted for in accordance with FASB guidance
   related to Split-Dollar Life Insurance Agreements. The cash surrender value of BOLI is
   recorded on our consolidated statement of financial condition as an asset and the
   change in the cash surrender value is recorded as non-interest income. The amount by
   which any death benefits received exceeds a policy&amp;#8217;s cash surrender value is recorded
   in non-interest income at the time of receipt. A liability is also recorded on our
   consolidated statement of financial condition for postretirement death benefits provided
   by the split-dollar endorsement policy. A corresponding expense is recorded in
   non-interest expense for the accrual of benefits over the period during which employees
   provide services to earn the benefits.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Bank-Owned Life Insurance.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Bank-Owned Life Insurance</Label></Row><Row><Id>17</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_DebtPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table15 - us-gaap:DebtPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Hudson City enters into sales of securities under agreements to repurchase with
   selected brokers and the FHLB. These agreements are recorded as financing transactions
   as Hudson City maintains effective control over the transferred securities. The dollar
   amount of the securities underlying the agreements continues to be carried in Hudson
   City&amp;#8217;s securities portfolio. The obligations to repurchase the securities are reported
   as a liability in the consolidated statements of financial condition. The securities
   underlying the agreements are delivered to the
   party with whom each transaction is executed. They agree to resell to Hudson City the same
   securities at the maturity or call of the agreement. Hudson City retains the right of substitution
   of the underlying securities throughout the terms of the agreements.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Hudson City has also obtained advances from the FHLB, which are generally secured by a blanket lien
   against our mortgage portfolio. Total borrowings with the FHLB are generally limited to
   approximately twenty times the amount of FHLB stock owned or the fair value of our mortgage
   portfolio, whichever is greater.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes the entity's accounting policies with respect to costs incurred to obtain or issue debt, the effects of refinancings, method of amortizing deferred financing costs and original issue discount, and classifications of debt on the balance sheet.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 22
 -Paragraph 8, 12

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Borrowed Funds</Label></Row><Row><Id>18</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_StockholdersEquityPolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table16 - us-gaap:StockholdersEquityPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Comprehensive income is comprised of net income and other comprehensive income. Other
   comprehensive income includes items such as changes in unrealized gains and losses on securities
   available for sale, net of tax and changes in the unrecognized prior service costs or credits of
   defined benefit pension and other postretirement plans, net of tax. Comprehensive income is
   presented in the consolidated statements of changes in shareholders&amp;#8217; equity.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes an entity's accounting policy for its capital stock transactions, including dividends and accumulated other comprehensive income.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 22
 -Paragraph 8

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Comprehensive Income</Label></Row><Row><Id>19</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_SegmentInformationPolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Segment Information.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table17 - hcbk:SegmentInformationPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;FASB guidance requires public companies to report certain financial information about significant
   revenue-producing segments of the business for which such information is available and utilized by
   the chief operating decision maker. As a community-oriented financial institution, substantially
   all of our operations involve the delivery of loan and deposit products to customers. Management
   makes operating decisions and assesses performance based on an ongoing review of these community
   banking operations, which constitute our only operating segment for financial reporting purposes.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Segment Information.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Segment Information</Label></Row><Row><Id>20</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_EarningsPerSharePolicyTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note2_accounting_policy_table18 - us-gaap:EarningsPerSharePolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Basic earnings per share is computed by dividing income available to common stockholders by the
   weighted average number of shares outstanding for the period. Diluted earnings per share reflects
   the potential dilution that could occur if securities or other contracts to issue common stock
   (such as stock options) were exercised or resulted in the issuance of common stock. These
   potentially dilutive shares would then be included in the weighted average number of shares
   outstanding for the period using the treasury stock method. Shares issued and shares reacquired
   during any period are weighted for the portion of the period that they were outstanding.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;In computing both basic and diluted earnings per share, the weighted average number of common
   shares outstanding includes the ESOP shares previously allocated to participants and shares
   committed to be released for allocation to participants and the recognition and retention plans
   (&amp;#8220;RRP&amp;#8221;) shares which have vested or have been allocated to participants. ESOP and RRP shares that
   have been purchased but have not been committed to be released or have not vested are excluded from
   the computation of basic and diluted earnings per share.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Discloses the methodology and assumptions used to compute basic and diluted earnings (loss) per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 128
 -Paragraph 40
 -Subparagraph a

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 128
 -Paragraph 6, 8-16, 60

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Earnings per Share</Label></Row><Row><Id>21</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_FairValueOfFinancialInstrumentsPolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Describes an entity's accounting policy for determining the fair value of its financial instruments.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note12_accounting_policy_table1 - hcbk:FairValueOfFinancialInstrumentsPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The ASC Topic 820, &lt;i&gt;Fair Value Measurements and Disclosures, &lt;/i&gt;defines fair value, establishes a
   framework for measuring fair value and expands disclosures about fair value measurements. ASC Topic
   820 applies only to fair value measurements already required or permitted by other accounting
   standards and does not impose requirements for additional fair value measures. ASC Topic 820 was
   issued to increase consistency and comparability in reporting fair values.
   &lt;/div&gt;
   &lt;/div&gt;

   &lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note12_accounting_policy_table2 - hcbk:FairValueOfFinancialInstrumentsPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;In accordance with ASC Topic 820, we group our assets at fair value in three levels, based on the
   markets in which the assets are traded and the reliability of the assumptions used to determine
   fair value. These levels are:
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&lt;b&gt;&amp;#8226;&lt;/b&gt; Level 1 &amp;#8212; Valuation is based upon quoted prices for identical instruments traded in active
   markets.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&lt;b&gt;&amp;#8226;&lt;/b&gt; Level 2 &amp;#8212; Valuation is based upon quoted prices for similar instruments in active markets,
   quoted prices for identical or similar instruments in markets that are not active and model-based
   valuation techniques for which all significant assumptions are observable in the market.
   &lt;/div&gt;
   &lt;!-- Folio --&gt;
   &lt;!-- /Folio --&gt;
   &lt;!-- PAGEBREAK --&gt;
   &lt;div style="font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="center" style="font-size: 10pt; margin-top: 0pt"&gt;
   &lt;i&gt;
   &lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&lt;b&gt;&amp;#8226;&lt;/b&gt; Level 3 &amp;#8212; Valuation is generated from model-based techniques that use significant assumptions
   not observable in the market. These unobservable assumptions reflect our own estimates of
   assumptions that market participants would use in pricing the asset or liability. Valuation
   techniques include the use of option pricing
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;models, discounted cash flow models and similar techniques. The results cannot be determined with
   precision and may not be realized in an actual sale or immediate settlement of the asset or
   liability.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;We base our fair values on the price that would be received to sell an asset in an orderly
   transaction between market participants at the measurement date. ASC Topic 820 requires us to
   maximize the use of observable inputs and minimize the use of unobservable inputs when measuring
   fair value.
   &lt;/div&gt;
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes an entity's accounting policy for determining the fair value of its financial instruments.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Adoption of ASC Topic 820 policy</Label></Row><Row><Id>22</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>hcbk_FairValueMeasurementPolicyTextBlock</ElementName><ElementPrefix>hcbk</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Fair value measurement policy.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Accounting Policy: HCBK-20101231_note18_accounting_policy_table1 - hcbk:FairValueMeasurementPolicyTextBlock--&gt;
   &lt;div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;In July&amp;#160;2010, FASB issued an accounting standards update regarding disclosures about the
   credit quality of financing receivables and the allowance for credit losses. This update
   amends Topic 310 to improve the disclosures that an entity provides about the credit quality
   of its financing receivables and the related allowance for credit losses. As a result of these
   amendments, an entity is required to disaggregate by portfolio segment or class certain
   existing disclosures and provide certain new disclosures about its financing receivables and
   related allowance for credit losses. This update is effective for interim and annual reporting
   periods ending on or after December&amp;#160;15, 2010. We have provided the disclosures required by
   this accounting standards update in the footnotes to the consolidated financial statements as
   of December&amp;#160;31, 2010.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;In April&amp;#160;2010, FASB issued an accounting standards update regarding the effect of a loan
   modification when the loan is part of a pool that is accounted for as a single asset. This
   update clarifies that modifications of loans that are accounted for within a pool under
   Subtopic 310-30, which provides guidance on accounting for acquired loans that have evidence
   of credit deterioration upon acquisition, do not result in the removal of those loans from the
   pool even if the modification would otherwise be considered a troubled debt restructuring. An
   entity will continue to be required to consider whether the pool of assets in which the loan
   is included is impaired if expected cash flows for the pool change. The amendments do not
   affect the accounting for loans under the scope of Subtopic 310-30 that are not accounted for
   within pools. Loans accounted for individually under Subtopic 310-30 continue to be subject to
   the troubled debt restructuring accounting provisions within Subtopic 310-40. This update was
   effective in the first interim or annual period ending on or after July&amp;#160;15, 2010. This
   accounting standard update did not have a material impact on our financial condition, results
   of operations or financial statement disclosures.
   &lt;/div&gt;
   &lt;!-- Folio --&gt;
   &lt;!-- /Folio --&gt;
   &lt;!-- PAGEBREAK --&gt;
   &lt;div style="font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="center" style="font-size: 10pt; margin-top: 0pt"&gt;
   &lt;i&gt;
   &lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;In January&amp;#160;2010, FASB issued an accounting standards update regarding disclosure
   requirements for fair value measurement. This update provides amendments to fair value
   measurement that require new disclosures related to transfers in and out of Levels 1 and 2 and
   activity in Level 3 fair value measurements. The update also provides amendments clarifying
   level of disaggregation and disclosures about inputs and valuation techniques along with
   conforming amendments to the guidance on employers&amp;#8217; disclosures about postretirement benefit
   plan assets. This update is effective for interim and annual reporting periods beginning after
   December&amp;#160;15, 2009, except for the disclosures about purchases, sales, issuances, and
   settlements in the rollforward of activity in Level 3 fair value measurements which are
   effective for fiscal years beginning after December&amp;#160;15, 2010, and for interim periods within
   those fiscal years. The effective portions of this accounting standards update did not affect
   our financial condition, results of operations or financial statement disclosures, and we do
   not expect that the remaining portions of this accounting standard update will have a material
   impact on our financial condition, results of operations or financial statement disclosures.
   &lt;/div&gt;
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Fair value measurement policy.</ElementDefenition><ElementReferences>No authoritative reference available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Fair value measurement policy</Label></Row></Rows><Footnotes /><NumberOfCols>1</NumberOfCols><NumberOfRows>21</NumberOfRows><ReportName>Summary of Significant Accounting Policies (Policies)</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>false</HasCustomUnits><SharesShouldBeRounded>true</SharesShouldBeRounded></InstanceReport>
