3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Aspen | 1 | 6,355 | 6,997 | -1.97% | 1,645 | 3.86 | City |
| Snowmass Village | 2 | 2,955 | 3,094 | -0.94% | 106 | 27.79 | Town |
| Woody Creek | 3 | 231 | 212 | -0.86% | 377 | 0.61 | CDP |
Aspen is the largest city in Pitkin County, with a population of 6,355.
Woody Creek is the smallest city in Pitkin County.
There are 3 cities in Pitkin County, Colorado.