Find the last 4 digits (ZIP+4) for an address in 64440

ZIP 64440, De Kalb, MO is filled in. Just type the street address.

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ZIP Code 64440 – De Kalb, MO

De Kalb, Missouri · Buchanan County · Central time

ZIP code64440
CityDe Kalb
StateMissouri
CountyBuchanan CountyPlatte County
Population900
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area36.24 sq mi
Center (lat, long)39.5851, -94.9103

Area codes in this area

816975

These are the area codes that most often serve ZIP 64440 (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

64448 Faucett · 4.6 mi64484 Rushville · 5.9 mi64508 Saint Joseph · 6.9 mi64504 Saint Joseph · 7.3 mi64098 Weston · 8.1 mi64439 Dearborn · 9.3 mi64401 Agency · 10.9 mi64503 Saint Joseph · 11.8 mi

About ZIP 64440

ZIP code 64440 is assigned to De Kalb, Missouri. It crosses 2 counties; most of its land is in Buchanan County. Its Census area covers about 36.24 square miles of land. The closest neighboring ZIP is 64448 (Faucett), about 4.6 miles away.

Every address in 64440 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