21 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Erie | Boulder County | 40,639 |
| Englewood | Arapahoe County | 35,642 |
| Evans | Weld County | 22,419 |
| Edwards | Eagle County | 10,438 |
| Evergreen | Jefferson County | 8,582 |
| Eagle | Eagle County | 7,308 |
| Eaton | Weld County | 5,836 |
| Estes Park | Larimer County | 5,768 |
| Edgewater | Denver County | 4,848 |
| El Jebel | Eagle County | 3,956 |
| Elizabeth | Elbert County | 3,036 |
| Ellicott | Elbert County | 1,369 |
| East Pleasant View | Jefferson County | 666 |
| Eads | Kiowa County | 626 |
| Eldora | Boulder County | 486 |
| Echo Hills | Clear Creek County | 425 |
| Eldorado Springs | Boulder County | 320 |
| Empire | Clear Creek County | 320 |
| Eckley | Yuma County | 236 |
| El Moro | Las Animas County | 200 |
| Elbert | El Paso County | 138 |