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ZIP Code 57430 – Britton, SD

Britton, South Dakota · Marshall County · Central time

ZIP code57430
CityBritton
StateSouth Dakota
CountyMarshall CountySargent County
Area code605
Population1,828
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area346.74 sq mi
Center (lat, long)45.8349, -97.7197

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Nearby ZIP codes

57421 Amherst · 10.5 mi58043 Havana · 12.8 mi57247 Lake City · 15 mi57454 Langford · 15.5 mi58017 Cogswell · 15.7 mi58032 Forman · 17 mi57432 Claremont · 18.3 mi57270 Veblen · 18.7 mi

About ZIP 57430

ZIP code 57430 is assigned to Britton, South Dakota. It crosses 2 counties; most of its land is in Marshall County. Its Census area covers about 346.74 square miles of land. The closest neighboring ZIP is 57421 (Amherst), about 10.5 miles away.

Every address in 57430 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