| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 11:54:11 PM |
| Population: | 12,201 [See All] |
| FIPS: | 30017 |
| Land Area: | 4,528 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 46.2417, -105.5341 |
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12,201 residents live across 4 ZIPs covering 4,528 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 12,064 to 12,201 from 2014 to 2024 — a +1.1% change. 4 ZIPs gained residents, 0 lost.
The county's wealthiest ZIP 59301 (Miles City, $71,332 median) and poorest ZIP 59336 (Ismay, $64,375) are 33.6 miles apart — a 1.1× income gap across local geography.
Median home values vary 2.9× across this county — from $117,800 in 59351 (Volborg) to $337,100 in 59338 (Kinsey).
Density varies 22× across the county — from 0 people/sq mi in 59336 (Ismay) to 4 in 59301 (Miles City).
Educational attainment ranges from 26.7% bachelor's+ in 59301 (Miles City) to 46.7% in 59336 (Ismay) — the breadth of educational profiles across the area.
Within Montana, this is the #16 most populous of 56 counties and ranks #22 for median household income .
Weighted by population, the typical household earns about $71,182 across the county — reflecting what a typical resident sees, not a simple ZIP average.
27.3% of adults age 25+ hold a bachelor's degree or higher (2,411 of 8,819 reporting).
4 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.