ZIP CodesZIP codes in Sweetwater County, Wyoming
Sweetwater County, Wyoming has 12 ZIP codes in this list, from 82322 to 82945. They cover 11 places, among them Rock Springs, Bairoil, Wamsutter and Little America.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 82322 | Bairoil | 5.3 | 42.233, -107.563 |
| 82336 | Wamsutter | 484 | 41.658, -108.152 |
| 82901 | Rock Springs | 1,077 | 41.606, -109.230 |
| 82902 | Rock Springs | no area | 41.587, -109.203 |
| 82929 | Little America | 3.1 | 41.544, -109.859 |
| 82932 | Farson | 160 | 42.083, -109.418 |
| 82934 | Granger | 7.2 | 41.594, -109.969 |
| 82935 | Green River | 134 | 41.520, -109.471 |
| 82938 | Mc Kinnon | 150 | 41.041, -109.874 |
| 82942 | Point Of Rocks | 9.8 | 41.680, -108.786 |
| 82943 | Reliance | 39.1 | 41.670, -109.192 |
| 82945 | Superior | 68.4 | 41.764, -108.968 |
The ZIP code areas of Sweetwater County add up to about 2,139 square miles of land (5,540 sq km) as the Census Bureau draws them. The largest is 82901 (Rock Springs), with 1,077 square miles.
Places with more than one code here: Rock Springs (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Bairoil, WY 82322.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.