There are 14 cities in Custer 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.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Hot Springs | 1 | South Dakota | 3,682 | 3,390 | 2.02% | 848 | 4.34 |
| Newcastle | 2 | Wyoming | 3,315 | 3,357 | -0.33% | 1,294 | 2.56 |
| Custer | 3 | South Dakota | 1,822 | 1,910 | -1.19% | 735 | 2.48 |
| Edgemont | 4 | South Dakota | 778 | 732 | 1.43% | 563 | 1.38 |
| Hermosa | 5 | South Dakota | 371 | 378 | -0.54% | 473 | 0.78 |
| Hill View Heights | 6 | Wyoming | 313 | 65 | 18.11% | 143 | 2.19 |
| Keystone | 7 | South Dakota | 240 | 244 | -0.41% | 80 | 3 |
| Buffalo Gap | 8 | South Dakota | 155 | 130 | 4.03% | 507 | 0.31 |
| Angostura | 9 | South Dakota | 152 | 75 | 12.59% | 12 | 12.59 |
| Pringle | 10 | South Dakota | 110 | 112 | -0.9% | 455 | 0.24 |
| Fairburn | 11 | South Dakota | 66 | 57 | 3.13% | 202 | 0.33 |
| Dudley | 12 | South Dakota | 0 | 21 | 0% | 0 | 0.11 |
| Maverick Junction | 13 | South Dakota | 0 | 10 | 0% | 0 | 0.38 |
| Provo | 14 | South Dakota | 0 | 1 | 0% | 0 | 0.17 |
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.
Hot Springs is the largest city in Custer County.
Provo is the smallest city in Custer County.
There are 14 cities in Custer County, South Dakota.