St. Charles is located in St. Charles County, MO. The population is 66,454, making St. Charles the 2nd largest city in St. Charles County and the 9th largest city in the state of Missouri.
There are 16 public schools in St. Charles with an average Homefacts rating of A-. The total crime rate for St. Charles is very low , and there are 117 registered sex offenders residing in the city. Unemployment in St. Charles is low and the median home sales price is $0. Detailed and up-to-date St. Charles property reports are available for any property address.