<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2009-07-15</periodOfReport>

    <dateOfOriginalSubmission>2009-07-17</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001405277</issuerCik>
        <issuerName>Constant Contact, Inc.</issuerName>
        <issuerTradingSymbol>CTCT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001413478</rptOwnerCik>
            <rptOwnerName>Campbell John</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CONSTANT CONTACT, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1601 TRAPELO RD., SUITE 329</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2009-07-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.04</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>60000</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By John Campbell 2007 Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>42954</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The original Form 4 erroneously reported in footnote 4 thereof that 63,206 shares of the issuer's common stock were contributed to the John Campbell 2007 Trust on June 24, 2009, rather than the correct number of 80,000 shares.  As a result of this error, the original Form 4 erroneously reported in Box 5 of Table I that, after giving effect to the reported transaction, the reporting person indirectly beneficially owned through the John Campbell 2007 Trust 43,206 shares (rather than the correct number of 60,000 shares) and directly beneficially owned 59,748 shares (rather than the correct number of 42,954 shares).  This amendment is being filed to correct the foregoing errors.  All other information reported in the original Form 4 is correct.</footnote>
        <footnote id="F2">The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2008.</footnote>
        <footnote id="F3">These shares were previously held jointly with Mr. Campbell's spouse and were contributed to the John Campbell 2007 Trust on June 24, 2009.</footnote>
        <footnote id="F4">Represents the weighted average sales price for shares sold in multiple transactions. Sales prices ranged from $21.00 to $21.17. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of such issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F5">These shares are held jointly with Mr. Campbell's spouse. Excludes 80,000 shares previously held jointly with Mr. Campbell's spouse which were contributed to the John Campbell 2007 Trust on June 24, 2009.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Steven R. Wasserman, attorney-in-fact</signatureName>
        <signatureDate>2010-02-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
