Find the last 4 digits (ZIP+4) for an address in 63301

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ZIP Code 63301 – Saint Charles, MO

Saint Charles, Missouri · St. Charles County · Central time

ZIP code63301
CitySaint Charles
StateMissouri
CountySt. Charles County
Population52,667
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area84.33 sq mi
Center (lat, long)38.8580, -90.4633

Area codes in this area

314557

These are the area codes that most often serve ZIP 63301 (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

63302 Saint Charles · 5.2 mi63045 Earth City · 6.1 mi63044 Bridgeton · 6.1 mi63373 Portage Des Sioux · 6.5 mi63031 Florissant · 6.7 mi63042 Hazelwood · 7 mi62036 Golden Eagle · 8 mi63346 Flinthill · 8.4 mi

About ZIP 63301

ZIP code 63301 is assigned to Saint Charles, Missouri. It lies in St. Charles County. Its Census area covers about 84.33 square miles of land. The closest neighboring ZIP is 63302 (Saint Charles), about 5.2 miles away.

Every address in 63301 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