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ZIP Code 57233 – Erwin, SD

Erwin, South Dakota · Kingsbury County · Central time

ZIP code57233
CityErwin
StateSouth Dakota
CountyKingsbury County
Area code605
Population350
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area36.73 sq mi
Center (lat, long)44.5099, -97.3993

Map

Nearby ZIP codes

57221 Bryant · 7.1 mi57249 Lake Preston · 8.8 mi57214 Badger · 10.2 mi57248 Lake Norden · 11.6 mi57231 De Smet · 12.9 mi57241 Hayti · 15.7 mi57212 Arlington · 15.7 mi57278 Willow Lake · 16.9 mi

About ZIP 57233

ZIP code 57233 is assigned to Erwin, South Dakota. It lies in Kingsbury County. Its Census area covers about 36.73 square miles of land. The closest neighboring ZIP is 57221 (Bryant), about 7.1 miles away.

Every address in 57233 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