<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000726601</issuerCik>
        <issuerName>CAPITAL CITY BANK GROUP INC</issuerName>
        <issuerTradingSymbol>CCBG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000909019</rptOwnerCik>
            <rptOwnerName>SMITH WILLIAM G JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 11248</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TALLAHASSEE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32302</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman, President and Chief</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>40000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>36.7</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>615756.635</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>2S Partnership</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2106312.92</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30658.808</value>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Wife - Paula P. Smith</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3781.174</value>
                    <footnoteId id="F7"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Wife's IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4023.855</value>
                    <footnoteId id="F8"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>39133.931</value>
                    <footnoteId id="F9"/>
                    <footnoteId id="F10"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Custodian - WGS, III</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34063.885</value>
                    <footnoteId id="F11"/>
                    <footnoteId id="F12"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>JWS TRUST</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34063.885</value>
                    <footnoteId id="F13"/>
                    <footnoteId id="F14"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>WGS,III Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>428616.216</value>
                    <footnoteId id="F15"/>
                    <footnoteId id="F16"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>WGS TRUST</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These share includes 415.048 shares of common stock acquired during the fiscal years of 2004 and 2005 pursuant of the Company's 1996 Dividend Reinvestment Plan. These acquisitions were exempt from the reporting and short-swing profit liability provisions os Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F2">These shares are adjusted for the 5 for 4 stock split effective June 13, 2003 and the 5 for 4 stock split efeective June 1, 2005.</footnote>
        <footnote id="F3">Includes 469.292 shares of common stock acquired during the fiscal years of 2004 and 2005 under the 1996 Dividend Reinvestment Plan. These acquisitions were exempt from the reporting and short-swing liability provisions of Section 16 pursuant to Rule 16 a-11 promulgated thereunder.</footnote>
        <footnote id="F4">These shares are adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
        <footnote id="F5">Includes 17.5929 shares of common stock acquired during the fiscal years of 2004 and 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. These acquisitions were exempt from the reporting and short-swing liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F6">These shares are adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
        <footnote id="F7">Includes 195.9 shares of common stock acquired during the fiscal years of 2004 and 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. These acuisitions were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F8">Includes 208.509 shares of common stock acquired during the fiscal years of 2004 and 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. These acquisitions were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F9">Includes 28.671 of common stock acquired during the fiscal years of 2004 and 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. These acquisitions were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F10">These shares are adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
        <footnote id="F11">Includes .377 of common stock acquired during the fiscal year of 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. This acquisition was wxempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F12">These shares are adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
        <footnote id="F13">Includes .377of common stock acquired  during the fiscal year of 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. This acquisition was exempt from the reporting and short-swing profit liability provision of Section 16 pursuant to Rul1 16a-11 promulgated thereunder.</footnote>
        <footnote id="F14">These shares are adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
        <footnote id="F15">Includes 1,769.902 of common stock acquired during the fiscal years of 2004 and 2005 pursuant to the Company's 1996 Dividend Reinvestment Plan. These acquisitions were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgatred thereunder.</footnote>
        <footnote id="F16">These shares are adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>William G. Smith, Jr.</signatureName>
        <signatureDate>2005-09-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
