Florissant, MO zip codes
Florissant, Missouri has 4 zip codes (3 residential, 1 PO box or single-organization). Most of it is in St. Louis County. Together these zip codes are home to about 112K people.
Zip codes
4
Population
112K
All zips combined
Largest zip
63031
50,196 residents
Income range
$67K–$104K
Median by zip