| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Terry | 1 | 576 | 563 | 0.35% | 738 | 1 | Town |
Terry is the largest city in Prairie County, with a population of 576.
Terry is the smallest city in Prairie County, with a population of 576.
There is 1 city in Prairie County, Montana.