Media Center

The Contra Costa Water District is a special district public agency that delivers raw and treated water to a population of 500,0000 in central and eastern Contra Costa County in California.


Treated water customers include:
  • Antioch (portion)
  • Bay Point (portion)
  • Brentwood (portion)
  • Clayton
  • Clyde
  • Concord
  • Martinez (portion)
  • Pacheco
  • Pleasant Hill (portion)
  • Port Costa
  • Walnut Creek
Raw water customers include:
  • Antioch
  • California Cities Water District (Bay Point)
  • Diablo Water District (Oakley)
  • Martinez
  • Pittsburg