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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000945094-04-000773.txt : 20041222
<SEC-HEADER>0000945094-04-000773.hdr.sgml : 20041222
<ACCEPTANCE-DATETIME>20041222130407
ACCESSION NUMBER:		0000945094-04-000773
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041220
FILED AS OF DATE:		20041222
DATE AS OF CHANGE:		20041222

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLSTATE CORP
		CENTRAL INDEX KEY:			0000899051
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				363871531
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2775 SANDERS ROAD
		CITY:			NORTHBROOK
		STATE:			IL
		ZIP:			60062
		BUSINESS PHONE:		8474025000

	MAIL ADDRESS:	
		STREET 1:		2775 SANDERS ROAD
		CITY:			NORTHBROOK
		STATE:			IL
		ZIP:			60062

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCCABE MICHAEL J
		CENTRAL INDEX KEY:			0001199798

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11840
		FILM NUMBER:		041219946

	MAIL ADDRESS:	
		STREET 1:		2775 SANDERS RD
		CITY:			NORTHBROOK
		STATE:			IL
		ZIP:			60062
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001199798d20041222f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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    <schemaVersion>X0202</schemaVersion>

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    <periodOfReport>2004-12-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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        <issuerName>ALLSTATE CORP</issuerName>
        <issuerTradingSymbol>ALL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
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            <rptOwnerCik>0001199798</rptOwnerCik>
            <rptOwnerName>MCCABE MICHAEL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>THE ALLSTATE CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>2775 SANDERS ROAD</rptOwnerStreet2>
            <rptOwnerCity>NORTHBROOK</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60062-6127</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>V.P. and General Counsel</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-12-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>23288</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.69</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
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                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>50.295</value>
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                <transactionAcquiredDisposedCode>
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            <transactionDate>
                <value>2004-12-20</value>
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                <transactionPricePerShare>
                    <value>50.3219</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
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            <transactionDate>
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                <transactionFormType>4</transactionFormType>
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            <transactionTimeliness>
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            <transactionAmounts>
                <transactionShares>
                    <value>3725</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>50.295</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
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                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Son</value>
                </natureOfOwnership>
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        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
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            </securityTitle>
            <postTransactionAmounts>
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                <natureOfOwnership>
                    <value>by 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.63</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-12-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>23000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.63</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>1997-08-15</value>
            </exerciseDate>
            <expirationDate>
                <value>2006-08-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>23000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>0</value>
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        <derivativeTransaction>
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            </conversionOrExercisePrice>
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            </transactionDate>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>23288</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.69</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2001-05-18</value>
            </exerciseDate>
            <expirationDate>
                <value>2010-05-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityShares>
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                </sharesOwnedFollowingTransaction>
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        <derivativeTransaction>
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                    <value>0</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2005-12-20</value>
                <footnoteId id="F4"/>
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                <value>2010-05-18</value>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                    <value>12358</value>
                </underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>12358</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Delivery of shares to issuer to pay minimum tax withholding liability incurred in connection with the exercise.</footnote>
        <footnote id="F2">Delivery of already-owned stock to issuer in payment of option exercise price.</footnote>
        <footnote id="F3">Reflects acquisition of 34.835 shares of The Allstate Corporation common stock since May 12, 2004 under The Savings and Profit Sharing Fund of Allstate Employees, a 401(k) plan, pursuant to the most recent plan statement, dated December 21, 2004.</footnote>
        <footnote id="F4">The option vests in four equal increments, December 20, 2005, December 20, 2006, December 20, 2007 and December 20, 2008.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>MICHAEL J MC CABE</signatureName>
        <signatureDate>2004-12-22</signatureDate>
    </ownerSignature>
</ownershipDocument>

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</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----