
St. Regis
- County:
- Mineral County
- County Seat:
- No
- Area (mi²):
- 0.856
- State:
- Montana
St. Regis is a CDP located in Mineral County, Montana. St. Regis has a 2025 population of 313. St. Regis is currently declining at a rate of 0% annually and its population has increased by 51.21% since the most recent census, which recorded a population of 207 in 2020.
The average household income in St. Regis is $51,535 with a poverty rate of 34.3%. The median age in St. Regis is 30.3 years: 36.7 years for males, and 23.3 years for females.