Find the last 4 digits (ZIP+4) for an address in 63031

ZIP 63031, Florissant, MO is filled in. Just type the street address.

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ZIP Code 63031 – Florissant, MO

Florissant, Missouri · St. Louis County · Central time

ZIP code63031
CityFlorissant
StateMissouri
CountySt. Louis County
Population50,196
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area15.06 sq mi
Center (lat, long)38.8120, -90.3536

Area codes in this area

314557

These are the area codes that most often serve ZIP 63031 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

63042 Hazelwood · 2.5 mi63034 Florissant · 4.2 mi63033 Florissant · 4.4 mi63044 Bridgeton · 4.9 mi63134 Saint Louis · 5 mi63135 Saint Louis · 5.1 mi63140 Saint Louis · 5.3 mi63074 Saint Ann · 6.2 mi

About ZIP 63031

ZIP code 63031 is assigned to Florissant, Missouri. It lies in St. Louis County. Its Census area covers about 15.06 square miles of land. The closest neighboring ZIP is 63042 (Hazelwood), about 2.5 miles away.

Every address in 63031 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources