| ZIP Codes: | 10 ZIP Codes (8 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:12:52 PM |
| Population: | 11,786 [See All] |
| FIPS: | 30003 |
| Land Area: | 3,678 sq mi |
| Water Area: | 13 sq mi |
| Coordinates: | 45.3823, -107.5592 |
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11,786 residents live across 10 ZIPs covering 3,678 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 12,177 to 11,786 from 2014 to 2024 — a -3.2% change. 5 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 59089 (Wyola, $62,870 median) and poorest ZIP 59075 (Saint Xavier, $24,063) are 33.5 miles apart — a 2.6× income gap across local geography.
Median home values vary 3.7× across this county — from $57,800 in 59022 (Crow Agency) to $211,600 in 59075 (Saint Xavier).
Density varies 30× across the county — from 0 people/sq mi in 59075 (Saint Xavier) to 11 in 59022 (Crow Agency).
Educational attainment ranges from 8.4% bachelor's+ in 59035 (Fort Smith) to 22.6% in 59050 (Lodge Grass) — the breadth of educational profiles across the area.
Within Montana, this is the #19 most populous of 56 counties and ranks #52 for median household income .
Weighted by population, the typical household earns about $58,287 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.4% of adults age 25+ hold a bachelor's degree or higher (1,283 of 6,970 reporting).
8 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 59034 | Hardin | Standard | 5,008 | $60,726 | 609.8 | -10.5% |
| 59022 | Crow Agency | Standard | 2,307 | $53,083 | 201.8 | 0.9% |
| 59050 | Lodge Grass | Standard | 1,338 | $62,500 | 866.2 | -6.2% |
| 59016 | Busby | Standard | 1,044 | $58,750 | 305.3 | 3.4% |
| 59089 | Wyola | Standard | 801 | $62,870 | 184.8 | 115.9% |
| 59066 | Pryor | PO Box | 539 | $52,000 | 283.2 | -20.7% |
| 59031 | Garryowen | Standard | 391 | — | 150.3 | -6.7% |
| 59035 | Fort Smith | PO Box | 180 | $51,726 | 82.1 | 46.3% |
| 59075 | Saint Xavier | Standard | 125 | $24,063 | 333.1 | -42.7% |
| 59025 | Decker | Standard | 53 | $36,500 | 661.5 | 15.2% |