Find the last 4 digits (ZIP+4) for an address in 64503

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ZIP Code 64503 – Saint Joseph, MO

Saint Joseph, Missouri · Buchanan County · Central time

ZIP code64503
CitySaint Joseph
StateMissouri
CountyBuchanan County
Population11,954
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area14.48 sq mi
Center (lat, long)39.7493, -94.8457

Area codes in this area

660

These are the area codes that most often serve ZIP 64503 (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

64501 Saint Joseph · 1.2 mi64502 Saint Joseph · 1.3 mi66024 Elwood · 2.5 mi64506 Saint Joseph · 3.6 mi64508 Saint Joseph · 5.1 mi64504 Saint Joseph · 5.1 mi64507 Saint Joseph · 5.7 mi64505 Saint Joseph · 6.8 mi

About ZIP 64503

ZIP code 64503 is assigned to Saint Joseph, Missouri. It lies in Buchanan County. Its Census area covers about 14.48 square miles of land. The closest neighboring ZIP is 64501 (Saint Joseph), about 1.2 miles away.

Every address in 64503 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