St. Joseph
- County:
- Tensas Parish
- County Seat:
- No
- Area (mi²):
- 0.89
- State:
- Louisiana
St. Joseph is a town located in Tensas Parish, Louisiana. St. Joseph has a 2026 population of 778. St. Joseph is currently declining at a rate of -0.26% annually and its population has decreased by -5.81% since the most recent census, which recorded a population of 826 in 2020.