About Diane Burgis
Supervisor Diane Burgis proudly serves the 222,000 residents of Contra Costa County’s 3rd Supervisorial District, including Antioch, Bethel Island, Brentwood, Byron, Discovery Bay, Knightsen, and Oakley in East Contra Costa County.
She was elected to office in 2016 and re-elected in 2020 and 2024.
Diane serves on over 30 Board of Supervisor and regional committees, including as Chair of the Economic Development Committee; Illegal Dumping Ad Hoc Committee; the Legislation Committee; and the Resilient Shoreline Committee. As Chair of California’s Delta Protection Commission, she also serves as its representative on the State’s Delta Stewardship Council.
Diane’s priorities include protecting and enhancing the Delta ecosystem and water quality; promoting public safety with improved fire protection and law enforcement coverage; addressing the homelessness and housing affordability crisis; improving mental health response; bringing more services to East County; and building our local economy to bring jobs closer to home.
Prior to being elected to the Contra Costa County Board of Supervisors in 2016, Diane served as a trustee on the East Bay Regional Parks District Board, a member of the Oakley City Council, and as the Executive Director of Friends of the Marsh Creek Watershed.
Diane has called Contra Costa County home for most of her life. She raised her three sons in Oakley, and is a proud grandmother of two.
Updated 03.25.2025