| ZIP Codes: | 6 ZIP Codes (5 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:11:56 PM |
| Population: | 10,658 [See All] |
| FIPS: | 16009 |
| Land Area: | 955 sq mi |
| Water Area: | 8 sq mi |
| Coordinates: | 47.1679, -116.6626 |
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10,658 residents live across 6 ZIPs covering 955 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 9,753 to 10,658 from 2014 to 2024 — a +9.3% change. 5 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 83861 (Saint Maries, $65,508 median) and poorest ZIP 83866 (Santa, $31,711) are 7.9 miles apart — a 2.1× income gap across local geography.
Median home values vary 1.9× across this county — from $251,200 in 83851 (Plummer) to $486,100 in 83870 (Tensed).
Density varies 3× across the county — from 6 people/sq mi in 83824 (Desmet) to 18 in 83851 (Plummer).
Educational attainment ranges from 13.9% bachelor's+ in 83851 (Plummer) to 32.4% in 83824 (Desmet) — the breadth of educational profiles across the area.
Within Idaho, this is the #30 most populous of 46 counties and ranks #39 for median household income with the #28 fastest decade growth .
Weighted by population, the typical household earns about $61,864 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.8% of adults age 25+ hold a bachelor's degree or higher (1,506 of 7,618 reporting).
5 Standard delivery, 1 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 83861 | Saint Maries | Standard | 7,275 | $65,508 | 515.4 | 14.0% |
| 83851 | Plummer | Standard | 2,113 | $57,356 | 118.6 | 33.9% |
| 83824 | Desmet | Standard | 452 | $53,036 | 76.5 | 13.9% |
| 83870 | Tensed | Standard | 421 | $51,250 | 64.2 | 33.7% |
| 83866 | Santa | PO Box | 352 | $31,711 | 0.0 | 340.0% |
| 83830 | Fernwood | Standard | 45 | $108,182 | 180.7 | -95.5% |