Washington County, Oregon

Washington County, Oregon, had an estimated population of 611,708 in 2025 across 1,876 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Oregon's counties and nationally.

Population
611,708
2025 estimate
Area
1,876 km²
Density
326
per km²
Median income
$107,772
household, ACS 2024
Median age
38.1
years, ACS 2024
How Oregon's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202495.4%
Median Gross Rent2024$1,849
Median Home Value2024$588,000
Owner-Occupied Homes202460.8%
Vacant Homes20243.2%
Demography
IndicatorValue
Aged 65 and Over202414.8%
American Indian & Alaska Native20240.3%
Asian, non-Hispanic202411.4%
Average Household Size2024people2.5
Black, non-Hispanic20242.2%
Foreign-Born202418.3%
Hispanic or Latino202418.6%
Median Age2024years38.1
Sex Ratio2024per 1,000 males1,003
Speak a Language Other Than English202425.8%
Under 18202421.6%
Veterans20245.6%
White, non-Hispanic202460.0%
Economy
IndicatorValue
Below Poverty Line20248.1%
Households on SNAP202410.5%
Income Inequality2024index0.428
Median Household Income2024$107,772
Per Capita Income2024$53,929
Unemployment Rate20244.5%
Education
IndicatorValue
Bachelor's Degree or Higher202447.5%
High School or Higher202492.7%
Health Coverage
IndicatorValue
No Health Insurance20245.2%
With a Disability202411.6%
Population & Density
IndicatorValue
Population2025611,708
Population Density2025/km²326
Work & Commute
IndicatorValue
Commute by Public Transit20243.1%
Households with No Vehicle20245.6%
Mean Commute Time2024minutes24
Work from Home202424.4%
Compare Washington County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.