Buffalo, WY ZIP code
The ZIP code for Buffalo, Wyoming is 82834. It is in Johnson County.
- Population in these ZIPs
- 7,588
- Avg. median income
- $63,400population-weighted
- Typical home value
- $411,500population-weighted
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Buffalo, WY ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 82834 | 7,588 | $63,395 | $411,500 |
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
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Frequently asked questions
What is the ZIP code for Buffalo, WY?
The ZIP code for Buffalo, WY is 82834.
What county is Buffalo, Wyoming in?
Buffalo ZIP codes are in Johnson County.