2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Dupree | 1 | 466 | 491 | -1.06% | 1,189 | 0.39 | City |
| Cherry Creek | 2 | 291 | 288 | 6.99% | 474 | 0.61 | CDP |
Dupree is the largest city in Ziebach County, with a population of 466.
Cherry Creek is the smallest city in Ziebach County.
There are 2 cities in Ziebach County, South Dakota.