United Security Bancshares announced that Mr. Karl Miller provided notice to company of his resignation from the Company, effective May 9, 2013. Mr. Miller's resignation is from his positions as Senior Vice President and Chief Credit Officer of United Security Bank and the Company.

United Security Bancshares, Annual General Meeting, May 15, 2013., at 19:00 Pacific Standard Time. Location: 2126 Inyo Street. Agenda: To consider the election of ten persons to the board of directors of the company to serve until the 2014 Annual Meeting of Shareholders and until their successors are elected and have been qualified; to consider the ratification of Moss Adams LLP as the company’s registered independent public accounting firm for 2013; and to consider the approval of a non-binding advisory vote on executive compensation; and to vote on selection of the frequency for the non-binding advisory vote on executive compensation for the company’s named executive officers.

United Security Bancshares reported unaudited consolidated earnings results for the first quarter ended March 31, 2013. For the quarter, the company reported net income of $1.1 million or $0.07 per basic and diluted common share compared to net income of $1.1 million or $0.07 per basic and diluted common share for the last year. Annualized return on average equity (ROAE) was 6.20%, compared to 6.69% for the same period in 2012. Annualized return on average assets (ROAA) was 0.68% compared to 0.67% for the same three-month period in 2012. The company reported total interest income of $5.7 million compared to $6.6 million, net interest income of $5.3 million compared to $6.1 million, income before income tax provision of $1.7 million compared to $1.5 million for the last year. Book value per share as on March 31, 2013 was $4.91 compared to $4.88 per share as on March 31, 201.