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County ZIP codes · Montana · FIPS 30079

Prairie County, MT ZIP Codes

Prairie County, Montana has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 6 residential and 1 for PO boxes or a single organization. 2 of the residential ones lie mainly in Prairie County and 4 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $70,964 in 59330 (Glendive) to $71,332 in 59301 (Miles City) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Prairie County?

59214 · Brockway: –59301 · Miles City: $71k59326 · Fallon: –59330 · Glendive: $71k59339 · Lindsay: $89k59349 · Terry: $63k59301593495933059214593265933959214 · Brockway: –59301 · Miles City: $71k59326 · Fallon: –59330 · Glendive: $71k59339 · Lindsay: $89k59349 · Terry: $63k59301593495933059214593265933959214 · Brockway: –59301 · Miles City: $71k59326 · Fallon: –59330 · Glendive: $71k59339 · Lindsay: $89k59349 · Terry: $63k593015934959330592145932659339
The residential ZIP codes of Prairie County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 6 postal town names: Miles City, Glendive, Terry, Fallon, Lindsay, Brockway.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 6 residential ZIP codes in Prairie County

2 ZIP codes lie mainly in Prairie County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Prairie County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
59349 Terry 1,025 1 $63k $158k 99%
59326 Fallon 233 1 – $220k 88%

Partly in Prairie County

Residential ZIP codes mainly in another county that reach at least 1% into Prairie County, by their share here
In this county
59214 Brockway 46 0 – $300k 11%
59330 Glendive 8,133 8 $71k $186k 3%
59301 Miles City 11,643 4 $71k $218k 1%
59339 Lindsay 208 1 $89k $228k 1%

Download the 7 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

6 ZIP codes of Prairie County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Prairie County and in the neighboring counties
ZIPIn PrairieElsewhere
593011%Custer County 81%; Rosebud County 10%; Garfield County 5%; Powder River County 2%
593303%Dawson County 97%
5934999%Custer County 1%
5932688%Dawson County 12%
593391%Dawson County 99%
5921411%McCone County 84%; Garfield County 5%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Prairie County without a residential area (GeoNames postal codes)
ZIPPostal name
59341Mildred

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Prairie County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Prairie County's ZIP codes use 2 prefixes: 592 and 593.

Three-digit prefixes of Prairie County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Prairie County's
PrefixSectional centerHereAll codes
592 Billings, MT (SCF 590) 1 41
593 Billings, MT (SCF 590) 6 31

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.