| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Aspen | 1 | 6,393 | 6,979 | -1.48% | 1,655 | 4 | City |
| Snowmass Village | 2 | 2,946 | 3,001 | -0.64% | 106 | 28 | Town |
Aspen is the largest city in Pitkin County, with a population of 6,393.
Snowmass Village is the smallest city in Pitkin County, with a population of 2,946.
There are 2 cities in Pitkin County, Colorado.