Prairie County, MT ZIP codes
Prairie County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Prairie County ZIP codes
The ZIP codes of Prairie County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Prairie County in numbers
About 1,250 people live in Prairie County, in 545 households, the 51st most populous of Montana's 56 counties. The median household income is $51,250 a year, 29% below the Montana median of $72,509 (US: $80,734). The median owner-occupied home is valued at $165,700 (56% below the Montana median), and median gross rent is $627 a month. The median age is 57.8; 26.9% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 17 minutes.
| Population | 1,250 |
|---|---|
| Households | 545 |
| Median age | 57.8 |
| Median household income | $51,250 |
| Median home value | $165,700 |
| Median gross rent | $627 |
| Bachelor's degree or higher | 26.9% |
| Mean commute | 17.0 min |
| Population density | 1 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Prairie County
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Prairie County.
- Custer County (4)
- Dawson County (4)
- Rosebud County (10)
- Fallon County (3)
- Powder River County (7)
- McCone County (4)
- Carter County (4)
- Garfield County (6)
Not sure you are in Prairie County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Prairie County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
59326 | Fallon , MT | Standard | 233 | — | $220,100 |
59341 | Mildred , MT | No street area | — | — | — |
59349 | Terry , MT | Standard | 1,025 | $63,000 | $158,100 |
Cite this page
zipcodes.pro. “Prairie County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mt/county/prairie
Underlying data is public domain or openly licensed — sources, vintages and licences.