There are 11 cities in Douglas 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) |
|---|---|---|---|---|---|---|---|
| Parkston | 1 | South Dakota | 1,512 | 1,558 | -0.72% | 1,157 | 1.31 |
| Platte | 2 | South Dakota | 1,211 | 1,293 | -1.63% | 1,151 | 1.05 |
| Armour | 3 | South Dakota | 682 | 696 | -0.44% | 722 | 0.94 |
| Corsica | 4 | South Dakota | 531 | 561 | -1.3% | 634 | 0.84 |
| Dimock | 5 | South Dakota | 152 | 148 | 0.66% | 884 | 0.17 |
| Delmont | 6 | South Dakota | 147 | 155 | -1.34% | 193 | 0.76 |
| Clearfield Colony | 7 | South Dakota | 80 | 0 | 33.33% | 264 | 0.30 |
| Old Elm Spring Colony | 8 | South Dakota | 78 | 0 | 34.48% | 80 | 0.97 |
| Milltown | 9 | South Dakota | 25 | 25 | 0% | 57 | 0.44 |
| Harrison | 10 | South Dakota | 7 | 7 | 0% | 65 | 0.11 |
| New Holland | 11 | South Dakota | 2 | 8 | -33.33% | 17 | 0.12 |
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.
Parkston is the largest city in Douglas County.
New Holland is the smallest city in Douglas County.
There are 11 cities in Douglas County, South Dakota.