Pennington County, South Dakota Cities (2025)

29 cities

City
Rank
2025 Pop.
2020 Pop.
Change
Density
Area (mi²)
Type
Rapid City182,38874,9281.84%1,49655.07 City
Box Elder215,15611,9354.44%1,02714.75 City
Rapid Valley37,0908,553-1.09%1,0966.47 CDP
Green Valley41,4591,2522.46%3803.84 CDP
Hill City51,0038772.56%7641.31 City
Wall6681698-0.44%2592.63 Town
New Underwood76215930.98%4261.46 City
Keystone8239244-0.42%803 Town
Quinn964630%531.20 Town
Wasta1061630%3180.19 Town
Scenic township1156550%0.00134.05 Township
Cedar Butte township124142-2.38%135.43 Township
Lake Creek township133839-2.56%135.85 Township
Lake Hill township143639-2.7%135.11 Township
Owanka township1535322.94%150.71 Township
Wasta township1635350%135.78 Township
Lake Flat township1734313.03%134.43 Township
Peno township1833330%135.77 Township
Castle Butte township1932320%151.02 Township
Crooked Creek township2023230%0.0071.12 Township
Ash township2122220%143.83 Township
Rainy Creek/Cheyenne township2220200%0.0091.33 Township
Sunnyside township2315150%0.0038.86 Township
Shyne township2412120%0.0026.89 Township
Wall township2511110%0.0033.22 Township
Quinn township2611110%0.0034.26 Township
Conata township2710100%0.0089.37 Township
Imlay township28990%0.00110.42 Township
Flat Butte township29770%0.0035.47 Township