| ZIP Codes: | 3 ZIP Codes (3 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 11:53:15 PM |
| Population: | 7,546 [See All] |
| FIPS: | 16077 |
| Land Area: | 1,515 sq mi |
| Water Area: | 17 sq mi |
| Coordinates: | 42.5746, -112.7969 |
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7,546 residents live across 3 ZIPs covering 1,515 sq mi, served by 3 distinct USPS-recognized cities.
Population moved from 6,781 to 7,546 from 2014 to 2024 — a +11.3% change. 2 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 83211 (American Falls, $65,483 median) and poorest ZIP 83271 (Rockland, $62,250) are 19.7 miles apart — a 1.1× income gap across local geography.
Median home values vary 2.3× across this county — from $123,400 in 83212 (Arbon) to $279,200 in 83271 (Rockland).
Density varies 7× across the county — from 1 people/sq mi in 83271 (Rockland) to 8 in 83211 (American Falls).
Educational attainment ranges from 14.8% bachelor's+ in 83211 (American Falls) to 29.4% in 83212 (Arbon) — the breadth of educational profiles across the area.
Within Idaho, this is the #33 most populous of 46 counties and ranks #36 for median household income with the #21 fastest decade growth .
Weighted by population, the typical household earns about $65,296 across the county — reflecting what a typical resident sees, not a simple ZIP average.
16.1% of adults age 25+ hold a bachelor's degree or higher (753 of 4,677 reporting).
3 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.