11 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 82901 | Rock Springs | 27,713 |
| 82935 | Green River | 12,316 |
| 82932 | Farson | 828 |
| 82336 | Wamsutter | 251 |
| 82945 | Superior | 236 |
| 82938 | McKinnon | 226 |
| 82934 | Granger | 197 |
| 82322 | Bairoil | 162 |
| 82942 | Point Of Rocks | 68 |
| 82943 | Reliance | 61 |
| 82929 | Little America | 21 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Sweetwater County, Wyoming (US Census).