County ProfileOR
Columbia County
Population: 52,589 · 8 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
52,589
People
Median age
43.3
Housing
Total households
20,928
Income
Median household income
$87,458
Housing
Total housing units
22,167
Employment
Employment rate
55.4%
Education
Bachelor’s degree or higher
19.8%
Healthcare
Insured population
94.6%
County details
Local time 22:50:48(PT)| Name | Columbia |
|---|---|
| Total ZIP codes | 8total |
| ZIP codes (by type) | 8 Standard |
| Area code | 503, 971 |
| Timezone | Pacific Time (PT) |
| Coordinates | 45.941932, -123.081079 |
| Land area | 658.7 sq miles(1,706 km²) |
Map of Columbia county, Oregon with ZIP codes
Cities and Communities in Columbia County
Compare the largest cities in Columbia County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Saint Helens | 13,817 | $82,865 | 1ZIPs |
| Scappoose | 8,010 | $97,708 | 1ZIPs |
| Vernonia | 2,374 | $83,411 | 1ZIPs |
| Columbia City | 1,949 | $96,750 | 1ZIPs |
| Rainier | 1,911 | $66,989 | 1ZIPs |
| Warren | 1,870 | $126,838 | 1ZIPs |
| Clatskanie | 1,716 | $90,709 | 1ZIPs |
| Deer Island | 323 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Columbia County
Review the most populated postal areas across Columbia County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 97051 | Saint Helens | $85,869 | 17,012 |
| 97056 | Scappoose | $94,209 | 12,926 |
| 97048 | Rainier | $77,171 | 6,965 |
| 97016 | Clatskanie | $79,375 | 6,162 |
| 97064 | Vernonia | $67,317 | 3,802 |
| 97053 | Warren | $142,538 | 3,463 |
| 97018 | Columbia City | $96,750 | 1,956 |
| 97054 | Deer Island | $87,327 | 1,494 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS