1 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fort Pierre | 1 | 2,179 | 2,115 | 0.51% | 699 | 3 | City |
Fort Pierre is the largest city in Stanley County, with a population of 2,179.
Fort Pierre is the smallest city in Stanley County, with a population of 2,179.
There is 1 city in Stanley County, South Dakota.