Florissant, MO ZIP Codes

Total ZIPs

108,973

Total Population

ZIP Codes in Florissant, MO

ZIP Code	Population	Density	Timezone
63031	48,212	1,263	America/Chicago
63033	43,000	1,345	America/Chicago
63034	17,761	366	America/Chicago

All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.