Contra Costa County, California
Contra Costa County is a county in the state of California. It is in the United States. As of the 2020 census, the population was 1,165,927.[1] The county seat is Martinez.[2] It is in the eastern part of the San Francisco Bay Area region.
Contra Costa County, California Media
Much of Rancho Los Meganos is now part of Marsh Creek State Park. The John Marsh Stone House still stands, but is in need of restoration.
Alameda and Contra Costa counties on the eastern shore of San Francisco Bay, opposite San Francisco in the foreground.
Postcard showing the Contra Costa County Courthouse in 1906.
Mount Diablo from Shell Ridge Open Space
Ethnic origins in Contra Costa County
View of the Shell Martinez oil refinery
Lafayette Reservoir - Lafayette, California, USA.
References
- ↑ QuickFacts: Contra Costa County, California. U.S. Census Bureau. Retrieved May 10, 2023.
- ↑ Find a CountyNational Association of Counties. Retrieved 2011-06-07.
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