<SUBMISSION>
<ACCESSION-NUMBER>0001067837-11-000027
<TYPE>4/A
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20110826
<FILING-DATE>20110906
<DATE-OF-FILING-DATE-CHANGE>20110906
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>FIELD DAVID J
<CIK>0001106858
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4/A
<ACT>34
<FILE-NUMBER>001-14461
<FILM-NUMBER>111076343
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>401 CITY AVENUE
<STREET2>SUITE 809
<CITY>BALA CYNWYD
<STATE>PA
<ZIP>19004
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ENTERCOM COMMUNICATIONS CORP
<CIK>0001067837
<ASSIGNED-SIC>4832
<IRS-NUMBER>231701044
<STATE-OF-INCORPORATION>PA
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>401 CITY AVENUE
<STREET2>SUITE 809
<CITY>BALA CYNWYD
<STATE>PA
<ZIP>19004
<PHONE>610-660-5610
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>401 CITY AVENUE
<STREET2>SUITE 809
<CITY>BALA CYNWYD
<STATE>PA
<ZIP>19004
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0304</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2011-08-26</periodOfReport>

    <dateOfOriginalSubmission>2011-08-26</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001067837</issuerCik>
        <issuerName>ENTERCOM COMMUNICATIONS CORP</issuerName>
        <issuerTradingSymbol>ETM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001106858</rptOwnerCik>
            <rptOwnerName>FIELD DAVID J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ENTERCOM COMMUNICATIONS CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>401 CITY AVENUE, SUITE 809</rptOwnerStreet2>
            <rptOwnerCity>BALA CYNWYD</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19004</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock, par value $.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2011-08-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5107</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.3467</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1491180</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On August 26, 2011, the reporting person timely filed a Form 4 reflecting the purchase of 5,107 shares.  In this original filing, the Item 3 Transaction Code was properly disclosed as &quot;P&quot; (Open Market Purchase) and the increased number of shares held was properly reported in Item 5.  The Item 4 Securities Code, however, was inadvertently listed as &quot;D&quot; rather than &quot;A&quot;.</footnote>
        <footnote id="F2">The purchase prices ranged from $5.32 to $5.40 per share.  Full information regarding the number of shares purchased at each separate price will be provided upon request to the Reporting Person by the Commission staff, the issuer or a security holder of the issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>David J. Field by Andrew P. Sutor, IV, authorized signatory</signatureName>
        <signatureDate>2011-09-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
