
St. Pierre
- County:
- Chouteau County
- County Seat:
- No
- Area (mi²):
- 8.077
- State:
- Montana
St. Pierre is a CDP located in Chouteau County, Montana. St. Pierre has a 2025 population of 452. St. Pierre is currently growing at a rate of 1.35% annually and its population has increased by 26.61% since the most recent census, which recorded a population of 357 in 2020.
The average household income in St. Pierre is $37,657 with a poverty rate of 38.76%. The median age in St. Pierre is 19.9 years: 19.5 years for males, and 21.2 years for females.