Sweetwater County, Wyoming ZIP codes
12 ZIP codes are in Sweetwater County, plus 1 that cross in from neighboring counties. It's part of the Rock Springs, WY micro area.
- ZIP codes
- 12
- Population in these ZIPs
- 41,542
- Avg. median income
- $75,700population-weighted
- Cities & towns
- 11
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Sweetwater County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 82322 | Bairoil | 149 | $40,250 | $23,700 |
| 82336 | Wamsutter | 269 | $57,298 | $98,700 |
| 82901 | Rock Springs | 27,198 | $69,954 | $290,400 |
| 82902 PO Box | Rock Springs | — | — | — |
| 82929 | Little America | 19 | — | — |
| 82932 | Farson | 997 | $87,632 | $420,800 |
| 82934 | Granger | 285 | $83,375 | $117,000 |
| 82935 | Green River | 12,012 | $87,993 | $293,800 |
| 82938 | Mc Kinnon | 221 | $105,323 | $437,100 |
| 82942 | Point Of Rocks | 9 | — | — |
| 82943 | Reliance | 187 | — | $150,200 |
| 82945 | Superior | 196 | $68,036 | $90,200 |
ZIP codes partly in Sweetwater County
These ZIP codes are mostly in a neighboring county but cover part of Sweetwater County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 82301 | Rawlins | Carbon County | 8,180 | $62,841 | $198,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Sweetwater County
Nearby counties
Frequently asked questions
How many ZIP codes are in Sweetwater County, Wyoming?
12 ZIP codes are mainly in Sweetwater County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Sweetwater County?
ZIP codes in Sweetwater County use the city names Bairoil, Farson, Granger, Green River, Little America, Mc Kinnon, Point Of Rocks, Reliance, Rock Springs, Superior and Wamsutter.
What metro area is Sweetwater County in?
Sweetwater County is part of the Rock Springs, WY micropolitan statistical area.