
Stillwater
- County:
- Washington County
- County Seat:
- Yes
- Area (mi²):
- 8.046
- State:
- Minnesota
Stillwater is a city located in Washington County, Minnesota. Stillwater has a 2025 population of 19,129. It is also the county seat of Washington County. Stillwater is currently declining at a rate of -0.29% annually and its population has decreased by -1.43% since the most recent census, which recorded a population of 19,406 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.