| ZIP Codes: | 13 ZIP Codes (11 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 458 / 541 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:13:29 PM |
| Population: | 80,001 [See All] |
| FIPS: | 41059 |
| CBSA: | Hermiston-Pendleton, OR |
| Land Area: | 3,344 sq mi |
| Water Area: | 16 sq mi |
| Coordinates: | 45.6853, -118.7788 |
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80,001 residents live across 13 ZIPs covering 3,344 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 76,821 to 80,001 from 2014 to 2024 — a +4.1% change. 7 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 97835 (Helix, $132,292 median) and poorest ZIP 97862 (Milton Freewater, $54,786) are 26.6 miles apart — a 2.4× income gap across local geography.
Median home values vary 2.0× across this county — from $208,900 in 97875 (Stanfield) to $423,700 in 97826 (Echo).
Density varies 132× across the county — from 2 people/sq mi in 97868 (Pilot Rock) to 295 in 97882 (Umatilla).
Educational attainment ranges from 8.1% bachelor's+ in 97875 (Stanfield) to 36.1% in 97810 (Adams) — the breadth of educational profiles across the area.
Within Oregon, this is the #14 most populous of 38 counties and ranks #17 for median household income .
Weighted by population, the typical household earns about $68,676 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.3% of adults age 25+ hold a bachelor's degree or higher (9,764 of 53,215 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 97838 | Hermiston | Standard | 28,512 | $69,599 | 204.4 | 11.4% |
| 97801 | Pendleton | Standard | 21,575 | $71,639 | 479.5 | -1.2% |
| 97862 | Milton Freewater | Standard | 12,313 | $54,786 | 323.0 | 3.0% |
| 97882 | Umatilla | Standard | 7,976 | $69,223 | 27.0 | 4.8% |
| 97875 | Stanfield | Standard | 2,410 | $57,451 | 60.3 | -14.4% |
| 97868 | Pilot Rock | Standard | 1,598 | $91,813 | 712.9 | -22.9% |
| 97813 | Athena | Standard | 1,508 | $75,700 | 53.0 | 22.3% |
| 97886 | Weston | Standard | 1,221 | $92,955 | 182.2 | -2.9% |
| 97826 | Echo | Standard | 1,178 | $58,750 | 364.0 | 20.2% |
| 97810 | Adams | Standard | 759 | $68,654 | 332.0 | -3.6% |
| 97835 | Helix | Standard | 608 | $132,292 | 154.0 | 61.7% |
| 97880 | Ukiah | PO Box | 248 | — | 295.5 | -0.4% |
| 97859 | Meacham | PO Box | 95 | $61,250 | 156.6 | 50.8% |