St. Joseph
- County:
- Berrien County
- County Seat:
- No
- Area (mi²):
- 3.203
- State:
- Michigan
St. Joseph is a city located in Berrien County, Michigan. St. Joseph has a 2026 population of 7,930. St. Joseph is currently declining at a rate of -0.3% annually and its population has decreased by -1.69% since the most recent census, which recorded a population of 8,066 in 2020.