Chesterfield is located in St. Louis County, MO. The population is 47,600, making Chesterfield the 2nd largest city in St. Louis County.
There are 13 public schools in Chesterfield with an average Homefacts rating of A+. The total crime rate for Chesterfield is low, and there are 14 registered sex offenders residing in the city. Unemployment in Chesterfield is low and the median home sales price is $0.