| ZIP Codes: | 6 ZIP Codes (6 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 11:54:13 PM |
| Population: | 11,059 [See All] |
| FIPS: | 30085 |
| Land Area: | 3,639 sq mi |
| Water Area: | 30 sq mi |
| Coordinates: | 48.1901, -104.7960 |
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11,059 residents live across 6 ZIPs covering 3,639 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 11,496 to 11,059 from 2014 to 2024 — a -3.8% change. 3 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 59218 (Culbertson, $98,833 median) and poorest ZIP 59255 (Poplar, $45,379) are 27.2 miles apart — a 2.2× income gap across local geography.
Median home values vary 4.8× across this county — from $85,000 in 59213 (Brockton) to $404,500 in 59212 (Bainville).
Educational attainment ranges from 14.6% bachelor's+ in 59213 (Brockton) to 57.9% in 59226 (Froid) — the breadth of educational profiles across the area.
Within Montana, this is the #20 most populous of 56 counties and ranks #20 for median household income .
Weighted by population, the typical household earns about $58,462 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.2% of adults age 25+ hold a bachelor's degree or higher (1,361 of 6,423 reporting).
6 Standard delivery, 0 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 |
|---|---|---|---|---|---|---|
| 59201 | Wolf Point | Standard | 5,073 | $53,311 | 1,584.5 | -3.0% |
| 59255 | Poplar | Standard | 3,083 | $45,379 | 702.4 | -15.9% |
| 59218 | Culbertson | Standard | 898 | $98,833 | 393.8 | -3.4% |
| 59213 | Brockton | Standard | 758 | $63,125 | 344.3 | 9.4% |
| 59226 | Froid | Standard | 644 | $66,190 | 361.9 | 33.3% |
| 59212 | Bainville | Standard | 603 | $94,444 | 251.8 | 22.6% |