Contra Costa County

Contra Costa County

Contra Costa County is a county in the state of California in the United States. As of the 2010 census, the population was 1,049,025. The county seat is Martinez. It occupies the northern portion of the East Bay region of the San Francisco Bay Area, and is primarily suburban.

Contra Costa County People (First 1 people) - Page 0

Briones Hills

Briones Hills

Mountain range in California