Basin, MT ZIP code
The ZIP code for Basin, Montana is 59631. It is in Jefferson County.
- Population in these ZIPs
- 375
- Avg. median income
- —population-weighted
- Typical home value
- $282,700population-weighted
- Metro area
- Helena, MT
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Basin, MT ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 59631 | 375 | — | $282,700 |
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 near Basin
- Elliston 15 mi
- Jefferson City 18 mi
- Deer Lodge 18 mi
- Clancy 20 mi
- Boulder 20 mi
- Ramsay 22 mi
- Warm Springs 23 mi
- Butte 25 mi
- Fort Harrison 26 mi
- Garrison 27 mi
- Avon 28 mi
- Helena 28 mi
Frequently asked questions
What is the ZIP code for Basin, MT?
The ZIP code for Basin, MT is 59631.
What county is Basin, Montana in?
Basin ZIP codes are in Jefferson County.