| ZIP Codes: | 12 ZIP Codes (10 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:11:58 PM |
| Population: | 13,668 [See All] |
| FIPS: | 16079 |
| Land Area: | 1,606 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 47.4403, -116.0321 |
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13,668 residents live across 12 ZIPs covering 1,606 sq mi, served by 12 distinct USPS-recognized cities.
Population moved from 12,528 to 13,668 from 2014 to 2024 — a +9.1% change. 6 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 83867 (Silverton, $90,074 median) and poorest ZIP 83874 (Murray, $42,500) are 12.2 miles apart — a 2.1× income gap across local geography.
Median home values vary 2.9× across this county — from $133,300 in 83868 (Smelterville) to $384,400 in 83839 (Kingston).
Density varies 5441× across the county — from 0 people/sq mi in 83802 (Avery) to 1,342 in 83867 (Silverton).
Educational attainment ranges from 8.6% bachelor's+ in 83874 (Murray) to 32.8% in 83867 (Silverton) — the breadth of educational profiles across the area.
Within Idaho, this is the #23 most populous of 46 counties and ranks #40 for median household income with the #29 fastest decade growth .
Weighted by population, the typical household earns about $56,707 across the county — reflecting what a typical resident sees, not a simple ZIP average.
12.7% of adults age 25+ hold a bachelor's degree or higher (1,255 of 9,896 reporting).
10 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 |
|---|---|---|---|---|---|---|
| 83837 | Kellogg | Standard | 3,203 | $45,885 | 54.6 | 1.1% |
| 83850 | Pinehurst | Standard | 2,704 | $67,574 | 104.9 | 28.9% |
| 83849 | Osburn | PO Box | 2,086 | $52,639 | 16.7 | 18.3% |
| 83873 | Wallace | Standard | 1,569 | $45,852 | 282.0 | -9.7% |
| 83839 | Kingston | Standard | 1,287 | $63,889 | 195.1 | 16.5% |
| 83846 | Mullan | Standard | 918 | $59,844 | 63.8 | 37.4% |
| 83868 | Smelterville | Standard | 906 | $51,270 | 7.5 | 13.0% |
| 83867 | Silverton | PO Box | 652 | $90,074 | 0.5 | -0.2% |
| 83808 | Calder | Standard | 132 | — | 263.7 | -5.7% |
| 83802 | Avery | Standard | 124 | $78,906 | 502.9 | -42.9% |
| 83874 | Murray | Standard | 76 | $42,500 | 36.2 | -14.6% |
| 83812 | Clarkia | Standard | 11 | $72,500 | 78.2 | -87.4% |