Congressman Mark DeSaulnier (DE-SOWN-YAY) proudly represents California's 10th Congressional District, which includes much of Contra Costa County and a part of Alameda County.
Many notable figures came from the area including conservationist John Muir and legendary baseball great Joe DiMaggio. California's first doctor, John Marsh, settled in 1837 on a large land grant that is now called Marsh Creek.
Contra Costa is governed by a five-member Board of Supervisors elected to represent residents of our County. Meetings are held on Tuesdays at a.m., although they are not held on every Tuesday. Please check the calendar on the County homepage for dates of upcoming meetings.
District Attorney Diana Becton has spent most of her professional career as a judge, lawyer, and manager. In 2017, she was sworn in as the 25th District Attorney for Contra Costa County. Following her appointment from the Board of Supervisors, she was elected to the position in June 2018, and re-elected in June 2022.
District Attorney Diana Becton has spent most of her professional career as a judge, lawyer, and manager. In 2017, she was sworn in as the 25th District Attorney for Contra Costa County. Following her appointment from the Board of Supervisors, she was elected to the position in June 2018, and re-elected in June 2022.
Diana Becton, the relatively low-profile district attorney of Contra Costa County for the last seven years, has suddenly become California's leading progressive local prosecutor.