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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001243412</rptOwnerCik>
            <rptOwnerName>LEWIS JOHN R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>217 NORTH MONROE STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TALLAHASSEE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>95</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>31.68</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15026.9987</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8750</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>John R. Lewis Retirement Plan</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares of common stock were purchased in 2005 under the Company's 2005 Director Stock Purchase Plan and were exempt from the reporting liability provisions of Section 16 pursuant to Rule 16b-3 promulgated thereunder.</footnote>
        <footnote id="F2">These shares have been adjusted for the 5 for 4 stck split efffective July 1, 2005.</footnote>
        <footnote id="F3">These shares have been adjusted for the 5 for 4 stock split effective July 1, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>John R. Lewis</signatureName>
        <signatureDate>2005-09-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2005-09-08
0
0000726601
CAPITAL CITY BANK GROUP INC
CCBG
0001243412
LEWIS JOHN R
217 NORTH MONROE STREET
TALLAHASSEE
FL
32301
1
0
0
0
Common Stock
2005-09-08
4
P
0
95
31.68
A
15026.9987
D
Common Stock
8750
I
John R. Lewis Retirement Plan
These shares of common stock were purchased in 2005 under the Company's 2005 Director Stock Purchase Plan and were exempt from the reporting liability provisions of Section 16 pursuant to Rule 16b-3 promulgated thereunder.
These shares have been adjusted for the 5 for 4 stck split efffective July 1, 2005.
These shares have been adjusted for the 5 for 4 stock split effective July 1, 2005.
John R. Lewis
2005-09-09