Meet Karen

KM Headshot w Flag

Supervisor Karen Mitchoff was sworn in as Contra Costa County District IV Supervisor in January of 2011. She began her public service in 1981 in the office of former Sherriff-Coroner Richard Rainey as his Executive Secretary. She served as the Chief of Staff to former Supervisors Sunne Wright McPeak and Mark DeSaulnier (1987-1998); and she served as a fiscal and administrative analyst for the county's Employment and Human Services Department (1998-2010).

Karen’s elected and appointed public service includes election to the Pleasant Hill City Council in 2008, serving as Mayor in 2010; appointment to the Pleasant Hill Recreation and Park District Board of Directors in 2003 and election to that Board in 2004 and 2006, serving as Chair in 2005 and 2006; her appointment to the Planning Commission (1992-1996); and an appointment to the Pleasant Hill Citizens' Advisory Committee on Redevelopment in 1988.

Her career spans both the public and private sector (legal secretary and paralegal), with great emphasis and dedication to both local community and regional initiatives. Karen represents Contra Costa County on a multitude of regional committees:

Protecting the Delta as an appointee to the Sacramento-San Joaquin Delta Conservancy Board and the Delta Protection Commission

Enhancing our infrastructure and transportation systems as a member of the Contra Costa Transportation Authority

Implementing economic development opportunities, regional resiliency plans, and housing needs as an Executive Committee member at the Association of Bay Area Governments;

Improving clean air standards as an appointee to the Bay Area Air Quality Management District.

Karen understands the importance of regional collaboration to streamline comprehensive and fiscally sustainable solutions that our communities can rely on.

Karen was born in Portland, Oregon. Her family moved to Pleasant Hill in 1965. She attended local public schools (Gregory Gardens Elementary, Valley View Middle, College Park High), and then attended Diablo Valley College, earning an A.A. degree in Business. She returned to college in 2000 (while working full time) and graduated from Cal State East Bay with a B.A. in Human Development.