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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001253073</rptOwnerCik>
            <rptOwnerName>CARROLL FREDERICK III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2640 MITCHAM DR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TALLAHASEE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32308</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>2005-05-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>482</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>35.39</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2428.048</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Held in 401(k) Plan</value>
                </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 Rile 16b-3(3) promulgated thereunder.</footnote>
        <footnote id="F2">Includes 4.312 shares of common stock were purchased in 2005 under the Company's 1996 Dividend Reinvestment Plan and were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promuglated thereunder.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Frederick Carroll, III</signatureName>
        <signatureDate>2005-05-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2005-05-02
0
0000726601
CAPITAL CITY BANK GROUP INC
CCBG
0001253073
CARROLL FREDERICK III
2640 MITCHAM DR
TALLAHASEE
FL
32308
1
0
0
0
Common Stock
2005-05-02
4
P
0
482
35.39
A
2428.048
D
Common Stock
1000
I
Held in 401(k) 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 Rile 16b-3(3) promulgated thereunder.
Includes 4.312 shares of common stock were purchased in 2005 under the Company's 1996 Dividend Reinvestment Plan and were exempt from the reporting and short-swing profit liability provisions of Section 16 pursuant to Rule 16a-11 promuglated thereunder.
Frederick Carroll, III
2005-05-02