Clayton is located in St. Louis County, MO. The population is 15,740.
There are 7 public schools in Clayton with an average Homefacts rating of A-. The total crime rate for Clayton is low, and there are 3 registered sex offenders residing in the city. Unemployment in Clayton is low and the median home sales price is $0. Detailed and up-to-date Clayton property reports are available for any property address.