Columbia County's estimated 2026 population is 54,353 with a growth rate of 0.27% in the past year according to the most recent United States census data. Columbia County is the 17th largest county in Oregon. The 2010 population was 49,353 and has seen a growth of 10.13% since that time.
Data after 2023 is projected based on recent change
The racial composition of Columbia County includes 86.99% White, and smaller percentages for Native American, other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White (86.99%)
Two or more races (9.54%)
Native American (0.99%)
Other race (0.88%)
Asian (0.64%)
Black or African American (0.57%)
Native Hawaiian or Pacific Islander (0.39%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 46,262 | 86.99% |
| Two or more races | 5,073 | 9.54% |
| Native American | 527 | 0.99% |
| Other race | 469 | 0.88% |
| Asian | 341 | 0.64% |
| Black or African American | 301 | 0.57% |
| Native Hawaiian or Pacific Islander | 205 | 0.39% |
Married
Widowed
Divorced
Separated
Never Married
Columbia County's average per capita income is $51,815. Household income levels show a median of $86,359. The poverty rate stands at 8.72%.
Name | Median | Mean |
|---|---|---|
| Married Families | $107,426 | - |
| Families | $97,279 | $114,348 |
| Households | $86,359 | $101,574 |
| Non Families | $47,745 | $64,357 |
Average Income
Median Household Income
Poverty Rate