St. Augusta
- County:
- Stearns County
- County Seat:
- No
- Area (mi²):
- 29.685
- State:
- Minnesota
St. Augusta is a city located in Stearns County, Minnesota. St. Augusta has a 2026 population of 3,767. St. Augusta is currently growing at a rate of 1.81% annually and its population has increased by 7.35% since the most recent census, which recorded a population of 3,509 in 2020.