Stillwater is a city located in Washington County, Minnesota. Stillwater has a 2025 population of 19,381 . It is also the county seat of Washington County . Stillwater is currently declining at a rate of -0.03% annually and its population has decreased by -0.12% since the most recent census, which recorded a population of 19,404 in 2020.
The average household income in Stillwater is $142,841 with a poverty rate of 7.7%. The median age in Stillwater is 42.5 years: 40.7 years for males, and 44.5 years for females. For every 100 females there are 99.2 males.
Data after 2023 is projected based on recent change
The racial composition of Stillwater includes 86.85% White, 3.13% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (86.85%)
Two or more races (5.88%)
Asian (3.13%)
Other race (2.41%)
Black or African American (1.45%)
Native American (0.24%)
Native Hawaiian or Pacific Islander (0.04%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 16,782 | 86.85% |
| Two or more races | 1,137 | 5.88% |
| Asian | 604 | 3.13% |
| Other race | 466 | 2.41% |
| Black or African American | 281 | 1.45% |
| Native American | 46 | 0.24% |
| Native Hawaiian or Pacific Islander | 7 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
Stillwater's average per capita income is $61,463. Household income levels show a median of $109,297. The poverty rate stands at 7.7%.
Name | Median | Mean |
|---|---|---|
| Married Families | $145,403 | - |
| Families | $125,242 | $170,522 |
| Households | $109,297 | $142,841 |
| Non Families | $58,221 | $86,864 |
Average Income
Median Household Income
Poverty Rate