| ZIP Codes: | 5 ZIP Codes (4 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:12:54 PM |
| Population: | 11,876 [See All] |
| FIPS: | 30083 |
| Land Area: | 1,470 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 47.6960, -104.3771 |
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11,876 residents live across 5 ZIPs covering 1,470 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 11,128 to 11,876 from 2014 to 2024 — a +6.7% change. 4 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 59243 (Lambert, $83,500 median) and poorest ZIP 59270 (Sidney, $72,630) are 22.7 miles apart — a 1.1× income gap across local geography.
Median home values vary 1.5× across this county — from $224,200 in 59217 (Crane) to $335,400 in 59243 (Lambert).
Density varies 41× across the county — from 1 people/sq mi in 59243 (Lambert) to 56 in 59217 (Crane).
Educational attainment ranges from 16.0% bachelor's+ in 59262 (Savage) to 53.4% in 59217 (Crane) — the breadth of educational profiles across the area.
Within Montana, this is the #17 most populous of 56 counties and ranks #12 for median household income with the #24 fastest decade growth .
Weighted by population, the typical household earns about $74,079 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.8% of adults age 25+ hold a bachelor's degree or higher (1,745 of 8,008 reporting).
4 Standard delivery, 1 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.