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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-02-08</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>2006-02-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>60</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>33.807</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3264.262</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1250</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 2006 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">Includes 17.573 shares of common stock that were purchased in 2005 under the 1996 Dividend Reinvestment Plan and were exempt from the reporting and short-swing liability provisions under Section 16 pursuant to Rule 16a-11 promulgated thereunder.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Frederick Carroll, III</signatureName>
        <signatureDate>2006-02-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2006-02-08
0
0000726601
CAPITAL CITY BANK GROUP INC
CCBG
0001253073
CARROLL FREDERICK III
2640 MITCHAM DR
TALLAHASEE
FL
32308
1
0
0
0
Common Stock
2006-02-08
4
P
0
60
33.807
A
3264.262
D
Common Stock
1250
I
Held in 401(k) Plan
These shares of common stock were purchased in 2006 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.
Includes 17.573 shares of common stock that were purchased in 2005 under the 1996 Dividend Reinvestment Plan and were exempt from the reporting and short-swing liability provisions under Section 16 pursuant to Rule 16a-11 promulgated thereunder.
Frederick Carroll, III
2006-02-09