| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:11:57 PM |
| Population: | 4,198 [See All] |
| FIPS: | 16037 |
| Land Area: | 4,470 sq mi |
| Water Area: | 16 sq mi |
| Coordinates: | 44.3074, -114.2662 |
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4,198 residents live across 5 ZIPs covering 4,470 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 3,998 to 4,198 from 2014 to 2024 — a +5.0% change. 2 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 83278 (Stanley, $81,602 median) and poorest ZIP 83226 (Challis, $36,458) are 46.6 miles apart — a 2.2× income gap across local geography.
Median home values vary 2.8× across this county — from $214,400 in 83227 (Clayton) to $606,300 in 83278 (Stanley).
Density varies 5× across the county — from 0 people/sq mi in 83278 (Stanley) to 2 in 83226 (Challis).
Educational attainment ranges from 18.2% bachelor's+ in 83226 (Challis) to 62.3% in 83278 (Stanley) — the breadth of educational profiles across the area.
Within Idaho, this is the #42 most populous of 46 counties and ranks #37 for median household income with the #40 fastest decade growth .
Weighted by population, the typical household earns about $54,952 across the county — reflecting what a typical resident sees, not a simple ZIP average.
29.3% of adults age 25+ hold a bachelor's degree or higher (1,007 of 3,442 reporting).
5 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.