Clayton Flag

Clayton

County Seat:
No
Area (mi²):
3.84
State:
California

Clayton is a city located in Contra Costa County, California. Clayton has a 2026 population of 10,933. Clayton is currently growing at a rate of 0.74% annually but its population has decreased by -1.16% since the most recent census, which recorded a population of 11,061 in 2020.

10.9K
Total Population
2,847
Density (mi²)
80 0.74%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)