| ZIP Codes: | 10 ZIP Codes (8 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:12:54 PM |
| Population: | 47,733 [See All] |
| FIPS: | 30081 |
| Land Area: | 2,382 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 46.2085, -114.1217 |
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47,733 residents live across 10 ZIPs covering 2,382 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 41,616 to 47,733 from 2014 to 2024 — a +14.7% change. 7 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 59833 (Florence, $94,097 median) and poorest ZIP 59871 (Sula, $32,163) are 52.3 miles apart — a 2.9× income gap across local geography.
Median home values vary 2.4× across this county — from $230,000 in 59841 (Pinesdale) to $551,600 in 59833 (Florence).
Density varies 594× across the county — from 1 people/sq mi in 59871 (Sula) to 855 in 59841 (Pinesdale).
Educational attainment ranges from 14.0% bachelor's+ in 59841 (Pinesdale) to 34.4% in 59833 (Florence) — the breadth of educational profiles across the area.
Within Montana, this is the #7 most populous of 56 counties and ranks #25 for median household income with the #10 fastest decade growth .
Weighted by population, the typical household earns about $73,290 across the county — reflecting what a typical resident sees, not a simple ZIP average.
28.9% of adults age 25+ hold a bachelor's degree or higher (10,431 of 36,096 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 |
|---|---|---|---|---|---|---|
| 59840 | Hamilton | Standard | 15,679 | $61,752 | 486.2 | 16.6% |
| 59870 | Stevensville | Standard | 12,506 | $80,325 | 214.8 | 21.2% |
| 59833 | Florence | Standard | 6,316 | $94,097 | 242.5 | 19.9% |
| 59828 | Corvallis | Standard | 5,827 | $80,294 | 93.5 | 16.3% |
| 59875 | Victor | Standard | 3,764 | $63,036 | 118.3 | 1.5% |
| 59829 | Darby | Standard | 2,148 | $63,650 | 985.7 | -5.6% |
| 59841 | Pinesdale | PO Box | 833 | $66,875 | 1.0 | -16.6% |
| 59827 | Conner | Standard | 371 | $65,815 | 39.0 | 1.6% |
| 59871 | Sula | Standard | 289 | $32,163 | 200.8 | 30.2% |
| 59835 | Grantsdale | PO Box | — | — | 0.0 | — |