Washington County's estimated 2025 population is 284,470 with a growth rate of 0.98% in the past year according to the most recent United States census data. Washington County is the 5th largest county in Minnesota. The 2010 population was 238,933 and has seen a growth of 19.06% since that time.
Data after 2023 is projected based on recent change
The racial composition of Washington County includes 79.7% White, 7.3% Asian, 4.89% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 217,018 | 79.7% |
| Asian | 19,869 | 7.3% |
| Two or more races | 15,336 | 5.63% |
| Black or African American | 13,314 | 4.89% |
| Other race | 6,038 | 2.22% |
| Native American | 615 | 0.23% |
| Native Hawaiian or Pacific Islander | 108 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
Washington County's average per capita income is $68,746. Household income levels show a median of $114,457. The poverty rate stands at 5.01%.
Name | Median | Mean |
|---|---|---|
| Married Families | $153,131 | $189,682 |
| Families | $135,690 | $170,479 |
| Households | $114,457 | $148,315 |
| Non Families | $62,913 | $87,403 |
Average Income
Median Household Income
Poverty Rate