Washington County's estimated 2026 population is 5,610 with a growth rate of 0.34% in the past year according to the most recent United States census data. Washington County is the 62nd largest county in Kansas. The 2010 population was 5,785 and has seen a growth of -3.03% since that time.
Data after 2023 is projected based on recent change
The racial composition of Washington County includes 92.9% White, and smaller percentages for other race, Asian, Native American, Black or African American and multiracial populations.
White (92.9%)
Two or more races (3.12%)
Other race (2.95%)
Asian (0.58%)
Native American (0.25%)
Black or African American (0.2%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,127 | 92.9% |
| Two or more races | 172 | 3.12% |
| Other race | 163 | 2.95% |
| Asian | 32 | 0.58% |
| Native American | 14 | 0.25% |
| Black or African American | 11 | 0.2% |
Married
Widowed
Divorced
Separated
Never Married
Washington County's average per capita income is $44,674. Household income levels show a median of $62,452. The poverty rate stands at 8.12%.
Name | Median | Mean |
|---|---|---|
| Married Families | $83,534 | - |
| Families | $79,211 | $96,362 |
| Households | $62,452 | $79,440 |
| Non Families | $35,318 | $54,694 |
Average Income
Median Household Income
Poverty Rate