FORM 4

[___] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

(Print or Type Responses)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF
CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940

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1.	Name and Address of Reporting Person*			2.	Issuer Name and Ticker or Trading Symbol			6.	Relationship of Reporting Person(s) to Issuer (Check all applicable)

	Bitter	Robert	G.		United Security Bancshares UBFO				X Director	10% Owner

	(Last)	(First)	(Middle)	3.	I.R.S. Identification Number of Reporting Person (voluntary)	4.	Statement for Month/Year		Officer (give title below)	Other (specify below)
							02/2003

(Street)						5.	If Amendment, Date of Original (Month/Year)	7.	Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person Form filed by More than
									One Reporting Person

	(City)	(State)	(Zip)
				Table I — Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

Title of Security
(Instr. 3)

Transaction Date
(Month/Day/Year)

2a.

Deemed Execution
Date, if any

Transaction Code
(Instr. 8)

Securities Acquired (A) or Disposed
of (D) (Instr. 3, 4 and 5)

Amount of Securities Beneficially Owned
at End of Month
(Instr. 3 and 4)

Ownership Form:
Direct (D) or Indirect (I)
(Instr. 4)

Nature of Indirect Beneficial Ownership
(Instr. 4)

Code V

Amount

(A) or (D)

Price

Common Stock

02/14/2003

5,000

$5.21

89,259

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.		(Over)
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).		SEC 1474 (7-97)

FORM 4 (Continued)

Table II — Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

Title of Derivative Security
(Instr. 3)

Conversion or Exercise Price of Derivative Security

Transaction Date
(Month/Day/Year)

3a.

Deemed
Execution Date
(Month/Day/Year)

Transaction Code
(Instr. 8)

Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

Date Exercisable and Expiration Date (Month/Day/Year)

Code

(A)

(D)

Date
Exercisable

Expiration Date

Director Stock Option (Right to Buy)

$5.21

02/14/2003

5,000

9/25/00

9/25/05


7.	Title and Amount of Underlying Securities (Instr. 3 and 4)		8.	Price of Derivative Security (Instr. 5)	9.	Number of Derivative Securities Beneficially Owned at End of Month (Instr. 4)	10.	Ownership Form of Derivative Securities Beneficially Owned at End of Month (Instr. 4)	11.	Nature of Indirect Beneficial Ownership (Instr. 4)

	Title	Amount or Number of Shares

	Common Stock	5,000

Explaination of Responses:

Transactions between filing of this report and previous report (11/2002) include quarterly dividend reinvestment for the purchase of 128 shares pursuant to plan exempt under Rule 16a-11.

	/s/ Robert G. Bitter	02/14/2003
*Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See* 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	**Signature of Reporting Person	Date

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		Page 2 SEC 1474 (7-97)

UNITED SECURITY BANCSHARES 4