City · Missouri · United States

Florissant, MO — ZIP codes

4 ZIP codes · St. Louis County

City: Florissant
County: St. Louis
State: Missouri
Country: United States
Postal codes: 63031630326303363034
Single source
Coordinates: 38.8069, -90.3401 View on OpenStreetMap

ZIP codes (4)

Postal code	Place name	Verification
63031	Florissant	Single source
63032	Florissant	Single source
63033	Florissant	Single source
63034	Florissant	Single source

Sources and verification

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Last generated : 2026-08-21. Report an error.