Clayton is a city in Contra Costa County. The population was 10,897 as of the 2010 census. In 1857, the town of Clayton was laid out and founded by Joel Henry Clayton (1812-1872) and his two younger brothers. - https://en.wikipedia.org/wiki/Clayton,_California
Main Street at Diablo Street
Clayton
CA
94517
Main Street at Diablo Street, Clayton, CA
claytonca.gov