-----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,
 NDugPnN/I1v77GYUYE8deiaKzmpOedmWSzIYv7RkVx5z2hR7YnV26iT6Rn7GUVye
 NPmoXoqyvak8+pJ7FzJN0w==

<SEC-DOCUMENT>0001005477-03-003897.txt : 20030926
<SEC-HEADER>0001005477-03-003897.hdr.sgml : 20030926
<ACCEPTANCE-DATETIME>20030926173603
ACCESSION NUMBER:		0001005477-03-003897
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030926
FILED AS OF DATE:		20030926

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITED SECURITY BANCSHARES
		CENTRAL INDEX KEY:			0001137547
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				912112732
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1525 E SHAW AVENUE
		CITY:			FRESO
		STATE:			CA
		ZIP:			93710

	MAIL ADDRESS:	
		STREET 1:		1525 E SHAW AVENUE
		CITY:			FRESNO
		STATE:			CA
		ZIP:			93710

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WOODS DENNIS R
		CENTRAL INDEX KEY:			0001144507
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-32897
		FILM NUMBER:		03913267

	BUSINESS ADDRESS:	
		STREET 1:		1525 E. SHAW AVE
		CITY:			FRESNO
		STATE:			CA
		ZIP:			93710
		BUSINESS PHONE:		5592484943

	MAIL ADDRESS:	
		STREET 1:		1525 E. SHAW AVE.
		CITY:			FRESNO
		STATE:			CA
		ZIP:			93710
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
    <periodOfReport>2003-09-26</periodOfReport>
    <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0001137547</issuerCik>
        <issuerName>UNITED SECURITY BANCSHARES</issuerName>
        <issuerTradingSymbol>UBFO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>

        <reportingOwnerId>
            <rptOwnerCik>0001144507</rptOwnerCik>
            <rptOwnerName>WOODS DENNIS R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1525 E. SHAW AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FRESNO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>93710</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
        <isDirector>1</isDirector>
        <isOfficer>1</isOfficer>
        <isTenPercentOwner>0</isTenPercentOwner>
        <isOther>0</isOther>
        <officerTitle>CEO</officerTitle>
    </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>

        <securityTitle>
            <value>Common Stock</value>
        </securityTitle>

        <transactionDate>
            <value>2003-09-26</value>
        </transactionDate>

        <deemedExecutionDate>
            <value>2003-09-26</value>
        </deemedExecutionDate>
    <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>M</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
    </transactionCoding>
        <transactionAmounts>

            <transactionShares>
                <value>60000</value>
            </transactionShares>

            <transactionPricePerShare>
                <value>11.33</value>
            </transactionPricePerShare>

            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>

            <sharesOwnedFollowingTransaction>
                <value>404468</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>

            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>
    <derivativeTable>
        <derivativeTransaction>

        <securityTitle>
            <value>Director Stock Option (right to buy)</value>
        </securityTitle>

        <conversionOrExercisePrice>
            <value>11.33</value>
        </conversionOrExercisePrice>

        <transactionDate>
            <value>2003-09-26</value>
        </transactionDate>

        <deemedExecutionDate>
            <value>2003-09-26</value>
        </deemedExecutionDate>
    <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>X</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
    </transactionCoding>
        <transactionAmounts>

            <transactionShares>
                <value>60000</value>
            </transactionShares>

            <transactionPricePerShare>
                <value>11.33</value>
            </transactionPricePerShare>

            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>

        <exerciseDate>
            <value>2002-07-21</value>
        </exerciseDate>

        <expirationDate>
            <value>2007-07-21</value>
        </expirationDate>
        <underlyingSecurity>

            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>

            <underlyingSecurityShares>
                <value>60000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>

            <sharesOwnedFollowingTransaction>
                <value>0</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>

            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
        </derivativeTransaction>

    </derivativeTable>
<remarks>Transactions between filing of this report and previous report (4/22/03) include quarterly dividend reinvestment for the purchase of 2,729 direct shares and 73 indirect shares. Indirect shares = 5,648</remarks>

    <ownerSignature>
        <signatureName>/s/ Dennis R. Woods</signatureName>
        <signatureDate>2003-09-26</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
