21 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Erie | Boulder County | 38,503 |
| Englewood | Arapahoe County | 34,709 |
| Evans | Weld County | 22,353 |
| Edwards | Eagle County | 10,835 |
| Evergreen | Jefferson County | 8,956 |
| Eagle | Eagle County | 7,315 |
| Eaton | Weld County | 5,824 |
| Estes Park | Larimer County | 5,773 |
| Edgewater | Denver County | 4,800 |
| El Jebel | Eagle County | 4,460 |
| Elizabeth | Elbert County | 2,980 |
| Ellicott | Elbert County | 1,276 |
| Eads | Kiowa County | 607 |
| Echo Hills | Clear Creek County | 453 |
| Eldora | Boulder County | 441 |
| Empire | Clear Creek County | 318 |
| Eckley | Yuma County | 230 |
| El Moro | Las Animas County | 220 |
| Eldorado Springs | Boulder County | 209 |
| Elbert | El Paso County | 196 |
| East Pleasant View | Jefferson County | 78 |