| City | County | 2026 Pop. ↓ |
|---|---|---|
| Westminster | Adams County | 116,095 |
| Windsor | Weld County | 46,001 |
| Wheat Ridge | Jefferson County | 32,007 |
| Welby | Adams County | 16,552 |
| Wellington | Larimer County | 12,405 |
| Woodmoor | El Paso County | 8,837 |
| Woodland Park | Teller County | 8,038 |
| West Pleasant View | Jefferson County | 5,540 |
| Walsenburg | Huerfano County | 3,036 |
| Wray | Yuma County | 2,352 |
| Wiggins | Morgan County | 1,976 |
| Watkins | Adams County | 1,338 |
| Winter Park | Grand County | 1,248 |
| Williamsburg | Fremont County | 802 |
| Walden | Jackson County | 516 |
| Walsh | Baca County | 508 |
| Westcliffe | Custer County | 505 |
| Wiley | Prowers County | 432 |
| Westcreek | Douglas County | 262 |
| Ward | Boulder County | 122 |
| Weldona | Morgan County | 97 |
| Woody Creek | Pitkin County | 91 |
| Weston | Las Animas County | 52 |