Contra Costa County, California is governed by a 5-member governing board. The current board of supervisors is John Gioia. See all 32 named officeholders and how to reach each office.
Population: 1,170,070.
Selected officeholders: Board of Supervisors: John Gioia · Board of Supervisors: Candace Andersen · Board of Supervisors: Diane Burgis · Board of Supervisors: Kent Carlson · Board of Supervisors: Shanelle Scales-Preston · District Attorney: Diana Becton.