23 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Westminster | Adams County | 114,626 |
| Windsor | Weld County | 45,980 |
| Wheat Ridge | Jefferson County | 31,807 |
| Welby | Adams County | 16,552 |
| Wellington | Larimer County | 12,578 |
| Woodmoor | El Paso County | 8,837 |
| Woodland Park | Teller County | 8,106 |
| West Pleasant View | Jefferson County | 5,540 |
| Walsenburg | Huerfano County | 3,029 |
| Wray | Yuma County | 2,383 |
| Wiggins | Morgan County | 2,088 |
| Watkins | Adams County | 1,338 |
| Winter Park | Grand County | 1,250 |
| Williamsburg | Fremont County | 807 |
| Walden | Jackson County | 531 |
| Westcliffe | Custer County | 526 |
| Walsh | Baca County | 505 |
| Wiley | Prowers County | 435 |
| Westcreek | Douglas County | 262 |
| Ward | Boulder County | 124 |
| Weldona | Morgan County | 97 |
| Woody Creek | Pitkin County | 91 |
| Weston | Las Animas County | 52 |