Find the last 4 digits (ZIP+4) for an address in 63631

ZIP 63631, Caledonia, MO is filled in. Just type the street address.

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ZIP Code 63631 – Caledonia, MO

Caledonia, Missouri · Washington County · Central time

ZIP code63631
CityCaledonia
StateMissouri
CountyWashington CountyIron County
Population544
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area41.24 sq mi
Center (lat, long)37.7546, -90.7880

Area codes in this area

235573

These are the area codes that most often serve ZIP 63631 (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

63648 Irondale · 6.3 mi63622 Belgrade · 7 mi63623 Belleview · 8.3 mi63624 Bismarck · 8.4 mi63656 Middle Brook · 10.9 mi63663 Pilot Knob · 11.7 mi63660 Mineral Point · 12 mi63650 Ironton · 13.1 mi

About ZIP 63631

ZIP code 63631 is assigned to Caledonia, Missouri. It crosses 2 counties; most of its land is in Washington County. Its Census area covers about 41.24 square miles of land. The closest neighboring ZIP is 63648 (Irondale), about 6.3 miles away.

Every address in 63631 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