
St. Clair
- County:
- Blue Earth County
- County Seat:
- No
- Area (mi²):
- 0.649
- State:
- Minnesota
St. Clair is a city located in Blue Earth County, Minnesota. St. Clair has a 2025 population of 717. St. Clair is currently declining at a rate of -0.97% annually and its population has decreased by -4.65% since the most recent census, which recorded a population of 752 in 2020.
The average household income in St. Clair is $100,525 with a poverty rate of 4.11%. The median age in St. Clair is 38.8 years: 38.3 years for males, and 42 years for females.