Exhibit 99.1 PRESS RELEASE For Immediate Release Date: April 19, 2024 Contact: Chris Courtney/Rick McCarty Phone: (209) 848-2265 www.ovcb.com OAK VALLEY BANCORP REPORTS 1st QUARTER RESULTS OAKDALE, CAOak Valley Bancorp (NASDAQ: OVLY) (the “Company”), the bank holding company for Oak Valley Community Bank and their Eastern Sierra Community Bank division, recently reported unaudited consolidated financial results for the first quarter of 2024. For the three months ended March 31, 2024, consolidated net inc ...