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Prairie County, Montana ZIP codes

3 ZIP codes are in Prairie County, plus 5 that cross in from neighboring counties.

ZIP codes
3
Population in these ZIPs
1,258
Avg. median income
$63,000population-weighted
Cities & towns
3
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ZIP codes in Prairie County

ZIP codes in Prairie County
ZIP codeCityPopulationMedian incomeTypical home value
59326Fallon233—$122,000
59341 PO BoxMildred———
59349Terry1,025$63,000$127,200

ZIP codes partly in Prairie County

These ZIP codes are mostly in a neighboring county but cover part of Prairie County.

ZIP codes partly in Prairie County
ZIP codeCityCountyPopulationMedian incomeTypical home value
59214BrockwayMcCone County46—$300,000
59301Miles CityCuster County11,643$71,332$245,400
59330GlendiveDawson County8,133$70,964$200,500
59336IsmayCuster County220$64,375$293,200
59339LindsayDawson County208$88,594$227,600

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 Prairie County

Nearby counties

Frequently asked questions

How many ZIP codes are in Prairie County, Montana?

3 ZIP codes are mainly in Prairie County, and 5 more ZIP codes from neighboring areas reach partly into it.

What cities are in Prairie County?

ZIP codes in Prairie County use the city names Fallon, Mildred and Terry.