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<ownershipDocument>

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    <periodOfReport>2006-05-10</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, Pres. and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <value>Common Stock</value>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>32.64</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>32.65</value>
                </transactionPricePerShare>
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                    <value>2098069.84</value>
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                <value></value>
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                <transactionShares>
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                <transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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                <directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
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                <transactionPricePerShare>
                    <value>0</value>
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                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2098135.703</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40666</value>
                    <footnoteId id="F2"/>
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            <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>3831.56</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Wife's - IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4077.475</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>WGS, jr - IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34063.885</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>JWS TRUST</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
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                <sharesOwnedFollowingTransaction>
                    <value>34063.885</value>
                </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>39147.224</value>
                    <footnoteId id="F5"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Custodian - WGS III</value>
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        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
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                <sharesOwnedFollowingTransaction>
                    <value>429015.195</value>
                    <footnoteId id="F6"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>THE WGS TRUST</value>
                </natureOfOwnership>
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        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>615799.285</value>
                    <footnoteId id="F7"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>2S Partnership</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares include 76.119 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These share were exempt from the reporting and short-swing profit liability provisions pursuant of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F2">These shares include 2.001 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These shares of were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F3">These shares include 17.632 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These shares were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F4">These shares include 18.764 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These shares were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F5">These shares include 4.644 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These shares of common stock were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F6">These shares include 139.618 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These shares were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
        <footnote id="F7">These shares include 14.925 shares of common stock acquired during the fiscal year 2006 pursuant to the Company's 1996 Dividend Reinvestment Plan. These shares were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>William G. Smith, Jr.</signatureName>
        <signatureDate>2006-05-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
