Mary Nejedly Piepho

The Honorable Mary Nejedly Piepho is serving in her third, four-year term on the Contra Costa County Board of Supervisors. As the District III Supervisor, she represents the largest of the five districts, covering Antioch, Bethel Island, Brentwood, Byron, Discovery Bay, Knightsen, and Oakley in East Contra Costa County and Blackhawk, Diablo and Tassajara Valley in the Southern portion of the County.

Supervisor Piepho serves as the Chair of the Delta Protection Commission and Contra Costa County Finance Committee.  She also serves on various other committees such as the Delta Stewardship Council, Airport Committee, Transportation, Water & Infrastructure Committee, LAFCO and Tri Delta Transit.  She is also one of the founding members of the 5 Delta Counties Coalition.

Prior to her election as a County Supervisor, Mary Piepho was an elected member of the Byron Union School District, and served as a Trustee of the Byron, Brentwood, Knightsen Union Cemetery District, and also served as:

  • President of the Los Medanos Community College Foundation
  • President of the Contra Costa Community College District Bond Oversight Committee
  • Member of the Highway 4 Safety Task Force
  • Director on the Discovery Bay Chamber of Commerce
  • Discovery Bay Parent-Teacher Association
  • Contra Costa County Special District Representative

Supervisor Piepho’s policy priorities include:

  • Preservation and revitalization of the county’s agricultural core
  • Responsible stewardship of natural resources such as water
  • Public safety, both police and fire, as a funding priority
  • Maintenance and expansion of our transportation infrastructure
  • Effective delivery of county services in a fiscal prudent manner  

Supervisor Piepho is a life-long resident of Contra Costa County and is the daughter of the late State Senator John A. Nejedly. She lives on the Delta in Discovery Bay with her husband, David a retired firefighter for Alameda County, and daughter, Mariah, who attends college.

Contact Friends of Mary Nejedly Piepho

MaryNejedlyPiepho@gmail.com

P.O. Box 1014, Brentwood, CA 94513

FPPC ID# 1254519

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Supervisor Piepho is a life-long resident of Contra Costa County and is the daughter of the late State Senator John A. Nejedly. She lives on the Delta in Discovery Bay with her husband, David a retired firefighter for Alameda County, and daughter, Mariah, who attends college.