Cities in Pennington County, South Dakota by Population (2024)

There are 26 cities in Pennington County, South Dakota.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Rapid City1South Dakota82,72474,9242.41%1,50255.07
Box Elder2South Dakota13,22511,9372.5%89614.75
Rapid Valley3South Dakota6,2228,553-8.13%9626.47
Summerset5South Dakota3,1282,9781.23%1,1492.72
Lead6South Dakota3,0482,9780.59%1,4812.06
Blackhawk7South Dakota2,8313,029-1.7%5984.74
Colonial Pine Hills8South Dakota2,1882,720-3.48%14315.29
Custer9South Dakota1,8891,911-0.26%7622.48
Green Valley10South Dakota1,4541,2523.64%3793.84
Ashland Heights11South Dakota1,3481,0825.23%4632.91
Deadwood12South Dakota1,3381,1523.64%2714.93
Hill City13South Dakota1,0388804.01%7911.31
Piedmont14South Dakota1,0271,045-0.39%6571.56
Wonderland Homes15South Dakota8651,0705.1%3,6500.24
Wall16South Dakota692698-0.14%2632.63
Johnson Siding17South Dakota6586580%1763.73
New Underwood18South Dakota6325981.44%4331.46
Hermosa19South Dakota3803800%4850.78
Hill View Heights20Wyoming3136518.11%1432.19
Keystone21South Dakota2422420%813
Interior22South Dakota67670%501.34
Quinn23South Dakota66621.54%551.20
Wasta24South Dakota64640%3330.19
Caputa25South Dakota210-16%720.29
Cottonwood26South Dakota12109.09%130.92
showing: 26 rows

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Pennington County, South Dakota?

Rapid City is the largest city in Pennington County.

What is the smallest city in Pennington County, South Dakota?

Cottonwood is the smallest city in Pennington County.

How many cities are in Pennington County?

There are 26 cities in Pennington County, South Dakota.

Frequently Asked Questions