| Locality | Post Code |
|---|---|
| Bairoil, Sweetwater | 82322 |
| Bitter Creek, Sweetwater | 82901 |
| Eden, Sweetwater | 82932 |
| Farson, Sweetwater | 82932 |
| Granger, Sweetwater | 82934 |
| Green River, Sweetwater | 82935 |
| Lamont, Sweetwater | 82322 |
| Little America, Sweetwater | 82929 |
| McKinnon, Sweetwater | 82935 |
| Point of Rocks, Sweetwater | 82942 |
| Quealy, Sweetwater | 82901 |
| Red Desert, Sweetwater | 82336 |
| Reliance, Sweetwater | 82943 |
| Rock Springs, Sweetwater | 82901 |
| Superior, Sweetwater | 82945 |
| Tipton, Sweetwater | 82336 |
| Wamsutter, Sweetwater | 82336 |