STOCKTON , CA APIL 10, 2006- Sandler O’Neill & Partners, specialists in Financial Services, announced their intent to become Market Makers of Pacific State Bancorp Stock. Sandler O’Neill was founded in 1988 with a single mission – to help financial institutions increase their franchise values through the execution of sound financial strategies. Today, Sandler O’Neill is one of the largest investment banking firms exclusively serving banks, thrifts, insurance companies and REITs.

Steven A. Rosso, President and CEO of Pacific State Bancorp, parent company of Pacific State Bank stated, “ Having Sandler O’Neill join the other Market Makers of PSBC Stock is an honor that will benefit our shareholders. Sandler O’Neill is recognized nationally as a leading authority for financial services companies”.

You can contact Christopher W. Munch, Managing Director, Equities, at their New York Office at 212-466/8025 or online at cmunch@sandleroneill.com.

SAFE HARBOR: Except for historical information contained herein, the statements contained in this press release are forward-looking statements within the meaning of the “safe harbor” provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements are subject to risks and uncertainties. Actual results may differ materially from those set forth in or implied by forward-looking statements. These risks are described from time to time in Pacific State Bancorp’s Securities and Exchange Commission filings, including its Annual Reports on Form 10-K and quarterly reports on Form 10-Q. While the Company intends to trade on NASDAQ, there are no assurances of the effect, if any, that listing with NASDAQ may have upon trading in the Company’s shares. Pacific State Bancorp disclaims any intent or obligation to update these forward-looking statements.

For any questions you may contact Steven A. Rosso at 209/870-3214.