Umatilla County's 2026 population is estimated at 81,729, reflecting a 0.76% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Umatilla County is the 14th largest county in Oregon. The 2010 population was 76,093 and has grown 7.41% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.9 years
Female: 38.5 years
Male: 36 years
There are 60,289 adults, (13,092 of whom are seniors) in Umatilla County.
Female: 38,253 (47.9%)
Male: 41,687 (52.1%)
The racial composition of Umatilla County includes 66.65% White, 14.76% other race, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 53,277 | 66.65% |
| Other race | 11,801 | 14.76% |
| Two or more races | 11,219 | 14.03% |
| Native American | 2,326 | 2.91% |
| Black or African American | 582 | 0.73% |
| Asian | 560 | 0.7% |
| Native Hawaiian or Pacific Islander | 175 | 0.22% |
Umatilla County 's average per capita income is $42,964. Household income levels show a median of $67,728. The poverty rate stands at 11.78%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,140 | $112,421 |
| Families | $77,004 | $97,037 |
| Households | $67,728 | $86,272 |
| Non Families | $39,083 | $51,404 |
Average Income
Median Household Income
Poverty Rate
