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ZIP Code 57720 – Buffalo, SD

Buffalo, South Dakota · Harding County · Mountain time

ZIP code57720
CityBuffalo
StateSouth Dakota
CountyHarding County
Area code605
Population518
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area1,296.16 sq mi
Center (lat, long)45.5372, -103.5861

Map

Nearby ZIP codes

57724 Camp Crook · 20.2 mi57776 Redig · 21.1 mi57755 Ludlow · 25.6 mi57651 Reva · 27 mi59319 Capitol · 29.3 mi57650 Ralph · 33.5 mi58623 Bowman · 43.7 mi58653 Scranton · 44.1 mi

About ZIP 57720

ZIP code 57720 is assigned to Buffalo, South Dakota. It lies in Harding County. Its Census area covers about 1,296.16 square miles of land. The closest neighboring ZIP is 57724 (Camp Crook), about 20.2 miles away.

Every address in 57720 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