| ZIP Codes: | 8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 503 / 971 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:13:27 PM |
| Population: | 54,803 [See All] |
| FIPS: | 41009 |
| CBSA: | Portland-Vancouver-Hillsboro, OR-WA |
| Land Area: | 816 sq mi |
| Water Area: | 22 sq mi |
| Coordinates: | 45.9169, -122.9984 |
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54,803 residents live across 8 ZIPs covering 816 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 50,476 to 54,803 from 2014 to 2024 — a +8.6% change. 7 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 97053 (Warren, $142,538 median) and poorest ZIP 97064 (Vernonia, $67,317) are 18.3 miles apart — a 2.1× income gap across local geography.
Median home values vary 1.6× across this county — from $336,000 in 97016 (Clatskanie) to $527,300 in 97053 (Warren).
Density varies 65× across the county — from 22 people/sq mi in 97016 (Clatskanie) to 1,405 in 97018 (Columbia City).
Educational attainment ranges from 14.9% bachelor's+ in 97016 (Clatskanie) to 27.0% in 97053 (Warren) — the breadth of educational profiles across the area.
Within Oregon, this is the #17 most populous of 38 counties and ranks #6 for median household income with the #14 fastest decade growth .
Weighted by population, the typical household earns about $88,801 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.6% of adults age 25+ hold a bachelor's degree or higher (7,860 of 40,032 reporting).
8 Standard delivery, 0 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 |
|---|---|---|---|---|---|---|
| 97051 | Saint Helens | Standard | 17,347 | $85,869 | 65.0 | 11.7% |
| 97056 | Scappoose | Standard | 12,795 | $94,209 | 108.8 | 10.7% |
| 97048 | Rainier | Standard | 7,099 | $77,171 | 107.7 | 7.8% |
| 97016 | Clatskanie | Standard | 6,573 | $79,375 | 305.0 | 0.8% |
| 97064 | Vernonia | Standard | 3,855 | $67,317 | 174.4 | 10.4% |
| 97053 | Warren | Standard | 3,634 | $142,538 | 13.7 | 20.3% |
| 97018 | Columbia City | Standard | 2,006 | $96,750 | 1.4 | -14.7% |
| 97054 | Deer Island | Standard | 1,494 | $87,327 | 39.5 | 5.6% |