Yamhill County's 2026 population is estimated at 109,983, reflecting a -0.04% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Yamhill County is the 10th largest county in Oregon. The 2010 population was 99,298 and has grown 10.76% since 2010.
Overall: 39.7 years
Female: 40.5 years
Male: 38.5 years
There are 85,822 adults, (20,490 of whom are seniors) in Yamhill County.
Female: 53,884 (49.6%)
Male: 54,850 (50.4%)
The racial composition of Yamhill County includes 76.63% White, 6.63% 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 | 83,324 | 76.63% |
| Two or more races | 13,961 | 12.84% |
| Other race | 7,212 | 6.63% |
| Asian | 2,111 | 1.94% |
| Native American | 1,094 | 1.01% |
| Black or African American | 805 | 0.74% |
| Native Hawaiian or Pacific Islander | 227 | 0.21% |
Yamhill County 's average per capita income is $50,888. Household income levels show a median of $90,063. The poverty rate stands at 10.25%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $121,540 | $148,130 |
| Families | $106,109 | $130,636 |
| Households | $90,063 | $112,958 |
| Non Families | $45,524 | $62,258 |
Average Income
Median Household Income
Poverty Rate