<SUBMISSION>
<ACCESSION-NUMBER>0001242467-03-000001
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20030701
<FILING-DATE>20030702
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>LIGHT DOROTHY K
<CIK>0001242467
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-08359
<FILM-NUMBER>03769273
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>NEW JERSEY RESOURCES
<STREET2>1415 WYCKOFF ROAD
<CITY>WALL
<STATE>NJ
<ZIP>07719
<PHONE>7329381480
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>NEW JERSEY RESOURCES CORP
<CIK>0000356309
<ASSIGNED-SIC>4924
<IRS-NUMBER>222376465
<STATE-OF-INCORPORATION>NJ
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>1415 WYCKOFF RD
<STREET2>PO BOX 1468
<CITY>WALL
<STATE>NJ
<ZIP>07719
<PHONE>9089381494
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1350 CAMPUS PKWY
<STREET2>P O BOX 1468
<CITY>WALL
<STATE>NJ
<ZIP>07719
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-07-01</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000356309</issuerCik>
        <issuerName>NEW JERSEY RESOURCES CORP</issuerName>
        <issuerTradingSymbol>NJR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001242467</rptOwnerCik>
            <rptOwnerName>LIGHT DOROTHY K</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeSecurity>
        <securityTitle>
            <value>Phantom Stock</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>0</value>
            <footnoteId id="F1"/>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-07-01</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>A</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>56.338</value>
            </transactionShares>
            <transactionValue>
                <value>35.5</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>1988-08-08</value>
            <footnoteId id="F2"/>
        </exerciseDate>
        <expirationDate>
            <value>1988-08-08</value>
            <footnoteId id="F2"/>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>56.338</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>1097.5095</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">1-for-1</footnote>
        <footnote id="F2">The phantom stock units were accrued under the New Jersey Resources Corporation (NJR) Directors Deferred Compensation Plan and are to be settled in cash upon the reporting person's retirement.  Total includes an accural for reinvested dividends.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Oleta J. Harden - Attorney-In-Fact</signatureName>
        <signatureDate>2003-07-01</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
