| ZIP Codes: | 5 ZIP Codes (4 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:11:58 PM |
| Population: | 12,548 [See All] |
| FIPS: | 16085 |
| Land Area: | 4,253 sq mi |
| Water Area: | 64 sq mi |
| Coordinates: | 44.8600, -115.8126 |
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12,548 residents live across 5 ZIPs covering 4,253 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 9,695 to 12,548 from 2014 to 2024 — a +29.4% change. 3 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 83611 (Cascade, $77,411 median) and poorest ZIP 83615 (Donnelly, $74,732) are 30.2 miles apart — a 1.0× income gap across local geography.
Median home values vary 1.7× across this county — from $429,400 in 83611 (Cascade) to $731,800 in 83615 (Donnelly).
Density varies 6× across the county — from 2 people/sq mi in 83611 (Cascade) to 9 in 83615 (Donnelly).
Educational attainment ranges from 26.0% bachelor's+ in 83615 (Donnelly) to 45.8% in 83638 (Mccall) — the breadth of educational profiles across the area.
Within Idaho, this is the #26 most populous of 46 counties and ranks #13 for median household income with the #3 fastest decade growth .
On the national stage, Valley County is and #60 for decade growth .
Weighted by population, the typical household earns about $75,744 across the county — reflecting what a typical resident sees, not a simple ZIP average.
39.9% of adults age 25+ hold a bachelor's degree or higher (3,806 of 9,529 reporting).
4 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
Valley County grew 29.4% over the past decade — concentrated in 2 high-growth ZIPs:
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.