<SUBMISSION>
<ACCESSION-NUMBER>0001091667-07-000021
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20070301
<FILING-DATE>20070305
<DATE-OF-FILING-DATE-CHANGE>20070305
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>CHARTER COMMUNICATIONS INC /MO/
<CIK>0001091667
<ASSIGNED-SIC>4841
<IRS-NUMBER>431857213
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>12405 POWERSCOURT DRIVE
<STREET2>SUITE 100
<CITY>ST LOUIS
<STATE>MO
<ZIP>63131
<PHONE>3145435712
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>12405 POWERSCOURT DRIVE
<STREET2>SUITE 100
<CITY>ST LOUIS
<STATE>MO
<ZIP>63131
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>LOVETT MICHAEL J
<CIK>0001279029
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-27927
<FILM-NUMBER>07671422
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>CHARTER COMMUNICATIONS INC
<STREET2>12405 POWERSCOURT DR
<CITY>ST LOUIS
<STATE>MO
<ZIP>63131
<PHONE>3149650555
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-03-01</periodOfReport>

    <issuer>
        <issuerCik>0001091667</issuerCik>
        <issuerName>CHARTER COMMUNICATIONS INC /MO/</issuerName>
        <issuerTradingSymbol>CHTR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001279029</rptOwnerCik>
            <rptOwnerName>LOVETT MICHAEL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CHARTER COMMUNICATIONS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>12405 POWERSCOURT DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP and COO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-03-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>16686</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.03</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>295094</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Previously reported restricted shares vested on February 28, 2007.  Sale pursuant to instructions given by the reporting person that authorizes the option plan administrator to automatically sell enough shares for the purpose of paying income taxes due upon vesting.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Michael J. Lovett</signatureName>
        <signatureDate>2007-03-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
