Rapid City, South Dakota

4 ZIP codes · Mountain time

ZIP codes (largest first)

57701 · 45,79557702 · 35,59557703 · 18,01357709 (PO box)
Population77,946
StateSouth Dakota
CountyPennington County
Area code605
Time zoneMountain
Land area55.98 sq mi

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.