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ZIP Code 57231 – De Smet, SD

De Smet, South Dakota · Kingsbury County · Central time

ZIP code57231
CityDe Smet
StateSouth Dakota
CountyKingsbury County
Area code605
Population1,724
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area249.28 sq mi
Center (lat, long)44.3758, -97.5823

Map

Nearby ZIP codes

57249 Lake Preston · 10.5 mi57353 Iroquois · 12.4 mi57233 Erwin · 12.9 mi57051 Oldham · 15.8 mi57323 Carthage · 16.1 mi57221 Bryant · 17.5 mi57278 Willow Lake · 19.5 mi57214 Badger · 20.4 mi

About ZIP 57231

ZIP code 57231 is assigned to De Smet, South Dakota. It lies in Kingsbury County. Its Census area covers about 249.28 square miles of land. The closest neighboring ZIP is 57249 (Lake Preston), about 10.5 miles away.

Every address in 57231 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