Polk County's 2026 population is estimated at 91,067, reflecting a 0.29% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Polk County is the 12th largest county in Oregon. The 2010 population was 75,540 and has grown 20.55% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.8 years
Female: 38.2 years
Male: 37.2 years
There are 70,277 adults, (17,062 of whom are seniors) in Polk County.
Female: 45,540 (50.8%)
Male: 44,122 (49.2%)
The racial composition of Polk County includes 77.7% White, 5.93% other race, and smaller percentages for Asian, Native American, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 69,670 | 77.7% |
| Two or more races | 10,201 | 11.38% |
| Other race | 5,318 | 5.93% |
| Asian | 1,703 | 1.9% |
| Native American | 1,460 | 1.63% |
| Black or African American | 791 | 0.88% |
| Native Hawaiian or Pacific Islander | 519 | 0.58% |
Polk County 's average per capita income is $52,183. Household income levels show a median of $85,118. The poverty rate stands at 12.66%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $119,087 | - |
| Families | $101,589 | $122,696 |
| Households | $85,118 | $107,909 |
| Non Families | $48,433 | $68,764 |
Average Income
Median Household Income
Poverty Rate
