Clayton (formerly, Clayton's and Claytonville) is a city in Contra Costa County, California, United States. The population was 10,897 as of the 2010 census.
GreatSchools Performance Ratings provide an overview of a school's test performance. Based on a scale of 1-10.
GreatSchools Review Ratings are the overall ratings that are provided by either a Parent/Guardian, Teacher, Staff, Administrator, Student or Former Student. Based on a scale of 1-5.
Population, household and median age statistics are based primarily on the 2010 US Census data projected forward to the present day.