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ZIP Code 63368 – O Fallon, MO

O Fallon, Missouri · St. Charles County · Central time

ZIP code63368
CityO Fallon
StateMissouri
CountySt. Charles County
Population46,966
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area16.22 sq mi
Center (lat, long)38.7515, -90.7284

Area codes in this area

636

These are the area codes that most often serve ZIP 63368 (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

63304 Saint Charles · 3.9 mi63367 Lake Saint Louis · 3.9 mi63338 Cottleville · 4 mi63376 Saint Peters · 7.1 mi63366 O Fallon · 7.3 mi63341 Defiance · 7.6 mi63385 Wentzville · 7.6 mi63365 New Melle · 8.3 mi

About ZIP 63368

ZIP code 63368 is assigned to O Fallon, Missouri. It lies in St. Charles County. Its Census area covers about 16.22 square miles of land. The closest neighboring ZIP is 63304 (Saint Charles), about 3.9 miles away.

Every address in 63368 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