
Fort Pierre
- County:
- Stanley County
- County Seat:
- No
- Area (mi²):
- 3.119
- State:
- South Dakota
Fort Pierre is a city located in Stanley County, South Dakota. Fort Pierre has a 2025 population of 2,214. Fort Pierre is currently growing at a rate of 0.91% annually and its population has increased by 4.63% since the most recent census, which recorded a population of 2,116 in 2020.
The average household income in Fort Pierre is $106,741 with a poverty rate of 1.82%. The median age in Fort Pierre is 42.8 years: 43.1 years for males, and 42.7 years for females.