Powder River County, Montana ZIP codes
7 ZIP codes are in Powder River County, plus 2 that cross in from neighboring counties.
- ZIP codes
- 7
- Population in these ZIPs
- 2,886
- Avg. median income
- $58,300population-weighted
- Cities & towns
- 7
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ZIP codes in Powder River County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 59003 | Ashland | 1,334 | $44,833 | $76,400 |
| 59062 | Otter | 51 | $28,750 | — |
| 59314 | Biddle | 155 | $91,875 | — |
| 59316 | Boyes | 15 | $48,750 | — |
| 59317 | Broadus | 1,108 | $71,250 | $242,800 |
| 59343 | Olive | 21 | — | — |
| 59351 | Volborg | 202 | — | $117,800 |
ZIP codes partly in Powder River County
These ZIP codes are mostly in a neighboring county but cover part of Powder River County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 59301 | Miles City | Custer County | 11,643 | $71,332 | $245,400 |
| 59345 | Powderville | Custer County | 35 | $68,125 | $225,000 |
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 Powder River County
Nearby counties
Frequently asked questions
How many ZIP codes are in Powder River County, Montana?
7 ZIP codes are mainly in Powder River County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Powder River County?
ZIP codes in Powder River County use the city names Ashland, Biddle, Boyes, Broadus, Olive, Otter and Volborg.