| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Gypsum | 1 | 9,495 | 8,105 | 3.07% | 1,074 | 9 | Town |
| Eagle | 2 | 7,249 | 7,509 | -0.43% | 1,241 | 6 | Town |
| Avon | 3 | 6,135 | 6,141 | -0.79% | 737 | 8 | Town |
| Vail | 4 | 4,325 | 4,826 | -1.86% | 919 | 5 | Town |
| Basalt | 5 | 4,020 | 3,966 | 0.27% | 1,987 | 2 | Town |
| Minturn | 6 | 967 | 1,035 | -1.93% | 130 | 7 | Town |
| Red Cliff | 7 | 233 | 260 | -2.1% | 955 | 0 | Town |
| Marble | 8 | 133 | 135 | 0% | 369 | 0 | Town |
Gypsum is the largest city in Eagle County, with a population of 9,495.
Marble is the smallest city in Eagle County, with a population of 133.
There are 8 cities in Eagle County, Colorado.