Florissant is located in St. Louis County, MO. The population is 52,229, making Florissant the largest city in St. Louis County.
There are 30 public schools in Florissant with an average Homefacts rating of C. The total crime rate for Florissant is very low , and there are 228 registered sex offenders residing in the city. Unemployment in Florissant is moderate and the median home sales price is $0. Detailed and up-to-date Florissant property reports are available for any property address.