9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Gunnison | 1 | 6,882 | 6,557 | 0.89% | 1,419 | 5 | City |
| Gunnison | 2 | 6,882 | 6,574 | 0.89% | 1,419 | 5 | City |
| Crested Butte | 3 | 1,640 | 1,648 | -0.18% | 1,892 | 1 | Town |
| Crested Butte | 4 | 1,640 | 1,655 | -0.18% | 1,892 | 1 | Town |
| Mount Crested Butte | 5 | 956 | 940 | 0.31% | 462 | 2 | Town |
| Mount Crested Butte | 6 | 956 | 938 | 0.31% | 462 | 2 | Town |
| Somerset | 7 | 76 | 90 | 7.04% | 400 | 0 | CDP |
| Pitkin | 8 | 72 | 75 | -1.37% | 279 | 0 | Town |
| Pitkin | 9 | 72 | 75 | -1.37% | 279 | 0 | Town |
Gunnison is the largest city in Gunnison County, with a population of 6,882.
Pitkin is the smallest city in Gunnison County, with a population of 72.
There are 9 cities in Gunnison County, Colorado.