About Karen
Karen Mitchoff was elected to the Contra Costa County Board of Supervisors in 2010 and has twice been re-elected by substantial margins.
Karen has a long and varied career in public service and is known for her straightforward style and effective constituent service. In her 12 years on the Board of Supervisors, Karen worked to improve water quality and save the Delta, championed aging issues, improved public safety, expanded access to County healthcare, and fought for transportation improvements.
As Supervisor, Karen served in leadership positions on regional bodies: the Contra Costa Transportation Authority, the Delta Counties Coalition, the Sacramento-San Joaquin Delta Conservancy, the Bay Area Air Quality Management District, and the Association of Bay Area Governments.
Prior to her election to the Board of Supervisors, Karen served as Councilmember and Mayor of Pleasant Hill and was elected to the Pleasant Hill Recreation and Park District Board.
Karen began her career in the private sector as a Legal Secretary and Family Law Paralegal. She transitioned to public service, working for former Contra Costa County Sheriff-Coroner Richard K. Rainey, as Chief of Staff to two former supervisors and as a fiscal and administrative analyst in the County’s social services department.
An avid reader, one of Karen’s proudest achievements was negotiating a complex land deal between the County and the City of Pleasant Hill to help finance and build a new library, which opened last year.
Karen earning her Professional
Legal Secretary Certification
Karen as Chair of the
Pleasant Hill Parks & Recreation Board
Karen speaking at I-680/HWY 4
Interchange Groundbreaking
Karen cutting the ribbon on
brand new Pleasant Hill Library