-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 URHcgA+PsKZ2TtMRPpZjr6dTmvjHLzzjR01dv6hgACiLTKMlEetnR53T7r6yF9XN
 BAFOerZRro0+eWesq3TRlQ==

<SEC-DOCUMENT>0001140361-09-016779.txt : 20090722
<SEC-HEADER>0001140361-09-016779.hdr.sgml : 20090722
<ACCEPTANCE-DATETIME>20090722145607
ACCESSION NUMBER:		0001140361-09-016779
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090710
FILED AS OF DATE:		20090722
DATE AS OF CHANGE:		20090722

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROSS ROBERT SIDNEY
		CENTRAL INDEX KEY:			0000898362

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12436
		FILM NUMBER:		09956989

	MAIL ADDRESS:	
		STREET 1:		115 SOUTH GANT ST
		CITY:			FITZGERALD
		STATE:			GA
		ZIP:			31750

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLONY BANKCORP INC
		CENTRAL INDEX KEY:			0000711669
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				581492391
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		115 SOUTH GRANT STREET
		STREET 2:		.
		CITY:			FITZGERALD
		STATE:			GA
		ZIP:			31750
		BUSINESS PHONE:		229-426-6000

	MAIL ADDRESS:	
		STREET 1:		115 SOUTH GRANT STREET
		STREET 2:		.
		CITY:			FITZGERALD
		STATE:			GA
		ZIP:			31750
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-07-10</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000711669</issuerCik>
        <issuerName>COLONY BANKCORP INC</issuerName>
        <issuerTradingSymbol>CBAN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000898362</rptOwnerCik>
            <rptOwnerName>ROSS ROBERT SIDNEY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P O BOX 666</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OCILLA, GA</rptOwnerCity>
            <rptOwnerState>X1</rptOwnerState>
            <rptOwnerZipCode>31774</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COLONY BANKCORP INC COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2009-07-10</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3.192</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.7059</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>506.266</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Owned by wife</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>ROBERT SIDNEY ROSS</signatureName>
        <signatureDate>2009-07-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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