18 cities
| City | Rank | County | 2025 Pop. ↓ |
|---|---|---|---|
| Gillette | 1 | Campbell County | 33,506 |
| Sheridan | 2 | Sheridan County | 20,060 |
| Buffalo | 3 | Johnson County | 4,749 |
| Newcastle | 4 | Weston County | 3,305 |
| Wright | 5 | Campbell County | 1,655 |
| Sleepy Hollow | 6 | Campbell County | 1,410 |
| Ranchester | 7 | Sheridan County | 1,232 |
| Sundance | 8 | Crook County | 1,143 |
| Moorcroft | 9 | Crook County | 1,036 |
| Story | 10 | Sheridan County | 1,022 |
| Upton | 11 | Weston County | 886 |
| Dayton | 12 | Sheridan County | 831 |
| Pine Haven | 13 | Crook County | 573 |
| Parkman | 14 | Sheridan County | 554 |
| Hulett | 15 | Crook County | 338 |
| Kaycee | 16 | Johnson County | 303 |
| Clearmont | 17 | Sheridan County | 128 |
| Arvada | 18 | Sheridan County | 10 |
Campbell County, Sheridan County, Johnson County, Crook County, and Weston County are the counties generally considered part of Northeast Wyoming.