Clayton (Contra Costa County, California)

Clayton
Clayton Location in California
Basic data
Foundation :	1857
State :	United States
State :	California
County :	Contra Costa County
Coordinates :	37 ° 56 ′  N , 121 ° 56 ′  W Coordinates: 37 ° 56 ′  N , 121 ° 56 ′  W
Time zone :	Pacific ( UTC − 8 / −7 )
Residents :	10,762 (as of: 2000)
Population density :	1,055.1 inhabitants per km 2
Area :	10.2 km 2  (approx. 4 mi 2 ) of which 10.2 km 2  (approx. 4 mi 2 ) is land
Height :	120 m
Postal code :	94517
Area code :	+1 925
FIPS :	06-13882
GNIS ID :	0277488
Website :	www.ci.clayton.ca.us
Mayor :	Gregory Manning
Clayton viewed from Mount Diablo

Clayton is an American city ​​in Contra Costa County in the US state of California . It has about 11,100 inhabitants (as of 2004). The city is located at the geographical coordinates 37.94 ° north, 121.93 ° west. The urban area has a size of 10.2 km².