13 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Rock Springs | Sweetwater County | 22,595 |
| Riverton | Fremont County | 11,085 |
| Rawlins | Carbon County | 7,904 |
| Ranchettes | Laramie County | 5,714 |
| Rafter J Ranch | Teton County | 1,273 |
| Ranchester | Sheridan County | 1,232 |
| Red Butte | Natrona County | 835 |
| Rolling Hills | Converse County | 425 |
| Rock River | Albany County | 220 |
| Ralston | Park County | 139 |
| Robertson | Uinta County | 89 |
| Riverside | Carbon County | 63 |
| Ryan Park | Carbon County | 35 |