21 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Erie | Boulder County | 42,684 |
| Englewood | Arapahoe County | 36,046 |
| Evans | Weld County | 22,445 |
| Edwards | Eagle County | 10,449 |
| Evergreen | Jefferson County | 8,552 |
| Eagle | Eagle County | 7,267 |
| Eaton | Weld County | 5,833 |
| Estes Park | Larimer County | 5,741 |
| Edgewater | Denver County | 4,816 |
| El Jebel | Eagle County | 3,966 |
| Elizabeth | Elbert County | 3,300 |
| Ellicott | Elbert County | 1,385 |
| East Pleasant View | Jefferson County | 687 |
| Eads | Kiowa County | 616 |
| Eldora | Boulder County | 509 |
| Echo Hills | Clear Creek County | 453 |
| Empire | Clear Creek County | 317 |
| Eldorado Springs | Boulder County | 302 |
| Eckley | Yuma County | 237 |
| El Moro | Las Animas County | 199 |
| Elbert | El Paso County | 132 |