-----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,
 LQ6lc4V4YU+F4vd5sjG2Wwryxs2pgJ1dKONJkBB3ppJf/9MXqRrx0wBqx9NRY56e
 YFnfG1+63Gg8qWqmNCZOAA==

<SEC-DOCUMENT>0001140361-07-012948.txt : 20070626
<SEC-HEADER>0001140361-07-012948.hdr.sgml : 20070626
<ACCEPTANCE-DATETIME>20070626112129
ACCESSION NUMBER:		0001140361-07-012948
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070625
FILED AS OF DATE:		20070626
DATE AS OF CHANGE:		20070626

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			21ST CENTURY HOLDING CO
		CENTRAL INDEX KEY:			0001069996
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				650248866
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3661 WEST OAKLAND PARK BLVD
		STREET 2:		SUITE 300
		CITY:			LAUDERDALE LAKES
		STATE:			FL
		ZIP:			33311
		BUSINESS PHONE:		9545819993

	MAIL ADDRESS:	
		STREET 1:		3661 WEST OAKLAND PARK BLVD
		STREET 2:		SUITE 300
		CITY:			LAUDERDALE LAKES
		STATE:			FL
		ZIP:			33311

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Krayer Anthony C III
		CENTRAL INDEX KEY:			0001404459

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25001
		FILM NUMBER:		07940345

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		954-581-9993

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 407193
		CITY:			FORT LAUDERDALE
		STATE:			FL
		ZIP:			33340
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-06-25</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001069996</issuerCik>
        <issuerName>21ST CENTURY HOLDING CO</issuerName>
        <issuerTradingSymbol>TCHC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001404459</rptOwnerCik>
            <rptOwnerName>Krayer Anthony C III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3661 WEST OAKLAND PARK BLVD.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>LAUDERDALE LAKES</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33311</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.11</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2008-06-25</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-06-25</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Options vest 20% per year beginning June 25, 2008</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/  Anthony C. Krayer, III</signatureName>
        <signatureDate>2007-06-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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