63031 is zip code located in Florissant, Missouri. The population is 48,529, making 63031 the largest zipcode in Florissant and the 2nd largest in St. Louis County.
There are 15 public schools in 63031 with an average Homefacts rating of C+. , and there are 92 registered sex offenders residing in the zip code 63031. Unemployment in 63031 is moderate.