Geographic reference
Contra Costa County, California
Contra Costa County is a county or county-equivalent in California.
Reference details
- State
- California (CA)
- Census GEOID
- 06013
- Land area
- 1,856.755 km²
- Water area
- 225.307 km²
- Representative point
- 37.90799, -121.958989
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.