Washington County, OR Demographics

The total population of Washington County is estimated to be 599,541 with 299,671 males (49.98%) and 299,870 females (50.02%). There are 199 more females than males in Washington County.
The median household income in Washington County was $99,471 in 2021, which marked an an increase of 1,312(1.34%) from $98,159 in 2020. This income is 133.33% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Washington County sees its highest median household income among householders in the age group of 45 to 64 years old, at $114,247. Overall, the median household income for the county of Washington County stands at $98,906.
In Washington County, the median income for all workers aged 15 years and older, regardless of work hours, was $58,706 for males and $38,134 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $80,251 for males and $63,009 for females.
In Washington County, the demographic landscape is diverse, spanning 7 distinct racial categories among households. Among these, Asian households have the highest median household income at $142,155, while Black or African American households represent the opposite end with the lowest median household income of $65,540.
In 2022, the population of Washington County was 600,176, a 0.38% decrease year-by-year from 2021. Previously, in 2021, Washington County's population was 602,494, an increase of 0.23% compared to a population of 601,101 in 2020.
The median age in Washington County, OR is 37.3, as per 2021 ACS 5-Year Estimates. Of the total population, 18.75% were under the age of 15, 19.62% aged 15 to 29, 48.20% aged 30 to 64, 11.91% aged 65 to 84, and 1.52% were 85 years of age and older.
Racial distribution of Washington County population: 71.47% are White, 2.28% are Black or African American, 0.79% are American Indian and Alaska Native, 10.81% are Asian, 0.44% are Native Hawaiian and other Pacific Islander, 5.62% are some other race and 8.58% are multiracial.