California Contra Costa County
Clayton
A city in Contra Costa County, California — population 11,527 as of 2020.
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Overnight
60°F
Mostly Cloudy
Monday
92°F
Mostly Sunny3% precip
Monday Night
57°F
Mostly Clear1% precip
Tuesday
92°F
Mostly Sunny
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Clayton by the numbers
Population
11,527Population figure, 2020
Households & income
- Area
- 3.84 sq mi (9.95 km²)
- Median age
- 43.8
- Households
- 3,982
- Persons per household
- 2.7
- Median household income
- $175,707
- Median house value
- $1,055,200
Municipal office
- Office
- CITY CLERK/ HR
- Address
- 6000 HERITAGE TRL, CLAYTON, CA 94517