Fergus County, Montana ZIP codes
9 ZIP codes are in Fergus County, plus 2 that cross in from neighboring counties.
- ZIP codes
- 9
- Population in these ZIPs
- 11,683
- Avg. median income
- $64,400population-weighted
- Cities & towns
- 9
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ZIP codes in Fergus County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 59032 | Grass Range | 409 | $42,000 | $318,800 |
| 59424 | Coffee Creek | 103 | $79,375 | $294,100 |
| 59430 | Denton | 448 | $76,875 | $264,400 |
| 59441 | Forest Grove | 126 | $62,344 | — |
| 59451 | Hilger | 123 | $85,625 | $350,900 |
| 59457 | Lewistown | 9,135 | $64,762 | $284,700 |
| 59464 | Moore | 597 | $56,979 | $329,500 |
| 59471 | Roy | 318 | $65,156 | $254,300 |
| 59489 | Winifred | 424 | $64,637 | $279,900 |
ZIP codes partly in Fergus County
These ZIP codes are mostly in a neighboring county but cover part of Fergus County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 59418 | Buffalo | Judith Basin County | 142 | — | — |
| 59453 | Judith Gap | Wheatland County | 331 | $58,500 | $275,500 |
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
Cities and towns in Fergus County
Nearby counties
Frequently asked questions
How many ZIP codes are in Fergus County, Montana?
9 ZIP codes are mainly in Fergus County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Fergus County?
ZIP codes in Fergus County use the city names Coffee Creek, Denton, Forest Grove, Grass Range, Hilger, Lewistown, Moore, Roy and Winifred.