Cornelius is a city located in Washington County, Oregon. Cornelius has a 2025 population of 15,369 . Cornelius is currently growing at a rate of 1.73% annually and its population has increased by 19.95% since the most recent census, which recorded a population of 12,813 in 2020.
The median household income in Cornelius is $90,071 with a poverty rate of 9.31%. The median age in Cornelius is 35.4 years: 36.3 years for males, and 34.4 years for females. For every 100 females there are 89.9 males.
Data after 2023 is projected based on recent change
The racial composition of Cornelius includes 54.07% White, 26.57% other race, 3.66% Native American, and smaller percentages for Asian, Black or African American and multiracial populations.
White (54.07%)
Other race (26.57%)
Two or more races (13.77%)
Native American (3.66%)
Asian (1.34%)
Black or African American (0.58%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 7,408 | 54.07% |
| Other race | 3,640 | 26.57% |
| Two or more races | 1,887 | 13.77% |
| Native American | 501 | 3.66% |
| Asian | 184 | 1.34% |
| Black or African American | 80 | 0.58% |
Married
Widowed
Divorced
Separated
Never Married
Cornelius' average per capita income is $42,598. Household income levels show a median of $90,071. The poverty rate stands at 9.31%.
Name | Median | Mean |
|---|---|---|
| Married Families | $103,675 | - |
| Households | $90,071 | $112,258 |
| Families | $83,032 | $109,575 |
| Non Families | $74,167 | $102,042 |
Average Income
Median Household Income
Poverty Rate