| ZIP Codes: | 8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:12:52 PM |
| Population: | 9,733 [See All] |
| FIPS: | 30001 |
| Land Area: | 6,109 sq mi |
| Water Area: | 31 sq mi |
| Coordinates: | 45.2474, -112.9460 |
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9,733 residents live across 8 ZIPs covering 6,109 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 9,266 to 9,733 from 2014 to 2024 — a +5.0% change. 5 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 59736 (Jackson, $76,346 median) and poorest ZIP 59739 (Lima, $54,215) are 95.5 miles apart — a 1.4× income gap across local geography.
Median home values vary 2.2× across this county — from $194,000 in 59739 (Lima) to $425,000 in 59724 (Dell).
Educational attainment ranges from 22.9% bachelor's+ in 59739 (Lima) to 54.9% in 59736 (Jackson) — the breadth of educational profiles across the area.
Within Montana, this is the #23 most populous of 56 counties and ranks #31 for median household income with the #27 fastest decade growth .
Weighted by population, the typical household earns about $61,735 across the county — reflecting what a typical resident sees, not a simple ZIP average.
38.0% of adults age 25+ hold a bachelor's degree or higher (2,607 of 6,865 reporting).
7 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 59725 | Dillon | Standard | 8,343 | $61,335 | 2,197.3 | 5.4% |
| 59761 | Wisdom | Standard | 312 | $62,083 | 823.0 | 14.3% |
| 59739 | Lima | Standard | 299 | $54,215 | 1,111.7 | -13.6% |
| 59762 | Wise River | Standard | 231 | $61,125 | 712.1 | -22.2% |
| 59732 | Glen | Standard | 195 | $73,125 | 322.8 | 103.1% |
| 59736 | Jackson | Standard | 155 | $76,346 | 383.3 | 7.6% |
| 59746 | Polaris | Standard | 111 | $73,750 | 221.7 | 52.1% |
| 59724 | Dell | PO Box | 87 | $59,375 | 337.4 | -29.3% |