| ZIP Codes: | 13 ZIP Codes (11 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 11:54:48 PM |
| Population: | 645 [See All] |
| FIPS: | 16073 |
| CBSA: | Boise City, ID |
| Land Area: | 9,654 sq mi |
| Water Area: | 18 sq mi |
| Coordinates: | 42.7844, -117.6009 |
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32,004 residents live across 13 ZIPs covering 9,654 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 30,699 to 31,937 from 2014 to 2024 — a +4.0% change. 5 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 97910 (Jordan Valley, $73,317 median) and poorest ZIP 97901 (Adrian, $45,500) are 60.7 miles apart — a 1.6× income gap across local geography.
Median home values vary 1.3× across this county — from $227,400 in 97910 (Jordan Valley) to $298,100 in 97918 (Vale).
Density varies 615× across the county — from 0 people/sq mi in 97910 (Jordan Valley) to 74 in 97914 (Ontario).
Educational attainment ranges from 10.4% bachelor's+ in 97906 (Harper) to 29.7% in 97901 (Adrian) — the breadth of educational profiles across the area.
Within Oregon, this is the #37 most populous of 38 counties and ranks #21 for median household income with the #21 fastest decade growth .
Weighted by population, the typical household earns about $53,967 across the county — reflecting what a typical resident sees, not a simple ZIP average.
15.2% of adults age 25+ hold a bachelor's degree or higher (3,186 of 20,965 reporting).
11 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.
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 |
|---|---|---|---|---|---|---|
| 97914 | Ontario | Standard | 19,713 | $50,857 | 265.2 | 6.5% |
| 97913 | Nyssa | Standard | 5,520 | $55,921 | 439.3 | -2.1% |
| 97918 | Vale | Standard | 4,567 | $63,342 | 452.0 | -0.4% |
| 97901 | Adrian | Standard | 954 | $45,500 | 171.6 | 61.7% |
| 97910 | Jordan Valley | Standard | 645 | $73,317 | 5,331.9 | 6.3% |
| 97906 | Harper | Standard | 360 | $47,054 | 1,085.9 | 21.2% |
| 97917 | Riverside | Standard | 50 | $130,625 | 311.0 | — |
| 97903 | Brogan | Standard | 48 | $117,778 | 147.2 | -78.3% |
| 97911 | Juntura | Standard | 42 | $27,500 | 518.5 | -42.5% |
| 97920 | Westfall | PO Box | 34 | — | 283.4 | -68.5% |
| 97908 | Ironside | Standard | 30 | — | 611.4 | -42.3% |
| 97909 | Jamieson | Standard | 24 | — | 30.2 | 200.0% |
| 97902 | Arock | PO Box | 17 | — | 6.4 | — |