-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EZdM/K24hVDpCy6uxcTNqX3A2TSXkied47tuOyldzFDMkWWXvoCHLuld2iIKeXWd
 0DTr+vaOgT4W7e6XV4Psew==

<SEC-DOCUMENT>0001024251-03-000024.txt : 20030717
<SEC-HEADER>0001024251-03-000024.hdr.sgml : 20030717
<ACCEPTANCE-DATETIME>20030717143259
ACCESSION NUMBER:		0001024251-03-000024
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030715
FILED AS OF DATE:		20030717

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CINERGY CORP
		CENTRAL INDEX KEY:			0000899652
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				311385023
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		139 E FOURTH ST
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45202
		BUSINESS PHONE:		5132872644

	MAIL ADDRESS:	
		STREET 1:		139 E FOURTH STREET
		STREET 2:		P.O BOX 960
		CITY:			CINCINATI
		STATE:			OH
		ZIP:			45202

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROGERS JAMES E
		CENTRAL INDEX KEY:			0001024251

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11377
		FILM NUMBER:		03791042

	BUSINESS ADDRESS:	
		STREET 1:		DUKE REALTY INVESTMENTS INC
		STREET 2:		8888 KEYSTONE CROSSING STE 1200
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46240
		BUSINESS PHONE:		3175758888

	MAIL ADDRESS:	
		STREET 1:		C/O DUKE REALTY INESTMENTS INC
		STREET 2:		8888 KEYSTONE CROSSING STE 1200
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46240
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-07-15</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000899652</issuerCik>
        <issuerName>CINERGY CORP</issuerName>
        <issuerTradingSymbol>cin</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001024251</rptOwnerCik>
            <rptOwnerName>ROGERS JAMES E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman, President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeSecurity>
        <securityTitle>
            <value>Phantom Stock Units</value>
            <footnoteId id="F1"/>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>0</value>
            <footnoteId id="F2"/>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-07-15</value>
        </transactionDate>
        <deemedExecutionDate>
            <value>2003-07-15</value>
        </deemedExecutionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>A</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>280.191</value>
            </transactionShares>
            <transactionValue>
                <value>35.69</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>1988-08-08</value>
            <footnoteId id="F3"/>
        </exerciseDate>
        <expirationDate>
            <value>1988-08-08</value>
            <footnoteId id="F3"/>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>280.191</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>72574.489</value>
                <footnoteId id="F4"/>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">Phantom stock units acquired under issuer's 401(k) Excess Plan.</footnote>
        <footnote id="F2">The derivative security converts into common stock on a one-for-one basis.</footnote>
        <footnote id="F3">Generally payable upon reporting person's termination of service with the issuer.</footnote>
        <footnote id="F4">Includes additional securities acquired pursuant to regular dividend reinvestments.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/David S. Maltz, attorney-in-fact</signatureName>
        <signatureDate>2003-07-17</signatureDate>
    </ownerSignature>

</ownershipDocument>

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