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ZIP Code 57751 – Keystone, SD

Keystone, South Dakota · Pennington County · Mountain time

ZIP code57751
CityKeystone
StateSouth Dakota
CountyPennington CountyCuster County
Area code605
Population893
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area44.22 sq mi
Center (lat, long)43.8691, -103.4269

Map

Nearby ZIP codes

57702 Rapid City · 11.3 mi57730 Custer · 14.8 mi57709 Rapid City · 15.3 mi57738 Fairburn · 18.4 mi57744 Hermosa · 20.2 mi57745 Hill City · 20.4 mi57773 Pringle · 20.7 mi57701 Rapid City · 20.7 mi

About ZIP 57751

ZIP code 57751 is assigned to Keystone, South Dakota. It crosses 2 counties; most of its land is in Pennington County. Its Census area covers about 44.22 square miles of land. The closest neighboring ZIP is 57702 (Rapid City), about 11.3 miles away.

Every address in 57751 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