Weston County, Wyoming ZIP codes
4 ZIP codes are in Weston County, plus 1 that cross in from neighboring counties.
- ZIP codes
- 4
- Population in these ZIPs
- 7,021
- Avg. median income
- $87,600population-weighted
- Cities & towns
- 4
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ZIP codes in Weston County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 82701 | Newcastle | 5,459 | $90,922 | $245,100 |
| 82715 PO Box | Four Corners | — | — | — |
| 82723 | Osage | 140 | $116,429 | $312,100 |
| 82730 | Upton | 1,422 | $72,159 | $264,600 |
ZIP codes partly in Weston County
These ZIP codes are mostly in a neighboring county but cover part of Weston County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 82729 | Sundance | Crook County | 2,331 | $89,306 | $413,300 |
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 Weston County
Nearby counties
Frequently asked questions
How many ZIP codes are in Weston County, Wyoming?
4 ZIP codes are mainly in Weston County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Weston County?
ZIP codes in Weston County use the city names Four Corners, Newcastle, Osage and Upton.