Find the last 4 digits (ZIP+4) for an address in 63034

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ZIP Code 63034 – Florissant, MO

Florissant, Missouri · St. Louis County · Central time

ZIP code63034
CityFlorissant
StateMissouri
CountySt. Louis County
Population18,908
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area18.75 sq mi
Center (lat, long)38.8454, -90.2885

Area codes in this area

314557

These are the area codes that most often serve ZIP 63034 (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

63033 Florissant · 3.3 mi63386 West Alton · 4.1 mi63031 Florissant · 4.2 mi63138 Saint Louis · 6 mi63135 Saint Louis · 6.5 mi63042 Hazelwood · 6.6 mi63136 Saint Louis · 7.1 mi63140 Saint Louis · 7.6 mi

About ZIP 63034

ZIP code 63034 is assigned to Florissant, Missouri. It lies in St. Louis County. Its Census area covers about 18.75 square miles of land. The closest neighboring ZIP is 63033 (Florissant), about 3.3 miles away.

Every address in 63034 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