2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Dupree | 1 | 497 | 491 | 0.2% | 1,268 | 0 | City |
| Cherry Creek | 2 | 291 | 288 | 6.99% | 474 | 1 | CDP |
Dupree is the largest city in Ziebach County, with a population of 497.
Cherry Creek is the smallest city in Ziebach County, with a population of 291.
There are 2 cities in Ziebach County, South Dakota.