City | 2024 Population |
|---|---|
| Walkerville | 666 |
| Warm Spring Creek | 17 |
| Weeksville | 96 |
| West Glacier | 224 |
| West Glendive | 2,000 |
| West Havre | 158 |
| West Kootenai | 294 |
| West Yellowstone | 1,205 |
| Westby | 164 |
| Wheatland | 1,398 |
| White Haven | 784 |
| White Sulphur Springs | 1,046 |
| Whitefish | 9,599 |
| Whitehall | 1,104 |
| Whitetail | 12 |
| Whitewater | 86 |
| Wibaux | 445 |
| Willow Creek | 206 |
| Wilsall | 184 |
| Windham | 8 |
| Wineglass | 127 |
| Winifred | 175 |
| Winnett | 216 |
| Winston | 64 |
| Wisdom | 82 |
| Wise River | 14 |
| Wolf Creek | 2 |
| Wolf Point | 2,477 |
| Woods Bay | 696 |
| Worden | 525 |
| Wye | 1,066 |
| Wyola | 325 |