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Map of Contra Costa County, California

Contra Costa County California

Contra Costa County Resources:

Contra Costa County DMV Locations
Contra Costa County City Guide
Contra Costa County Schools
Contra Costa County Restaurants
California Vacation Packages

Zip Codes:
   Zip Codes A - G
   Zip Codes H - O
   Zip Codes P - Z

Contra Costa County:

Cities in Contra Costa County

Antioch
Brentwood
Clayton
Concord
Danville
El Cerrito
Hercules
Lafayette
Martinez
Moraga
Oakley
Orinda
Pinole
Pittsburg
Pleasant Hill
Richmond
San Pablo
San Ramon
Walnut Creek

About Contra Costa County:

As of the 2010 census, the population of Contra Costa County was 1,049,025. The county seat is Martinez. The name Contra Costa means "opposite coast" in Spanish. Contra Costa County is included in the San Francisco-Oakland-Hayward, CA Metropolitan Statistical Area. It occupies the northern portion of the East Bay region and is primarily suburban.