
St. Jo
- County:
- Montague County
- County Seat:
- No
- Area (mi²):
- 1.076
- State:
- Texas
St. Jo is a city located in Montague County, Texas. St. Jo has a 2025 population of 984. St. Jo is currently growing at a rate of 2.07% annually and its population has increased by 11.44% since the most recent census, which recorded a population of 883 in 2020.
The average household income in St. Jo is $63,828 with a poverty rate of 18.46%. The median age in St. Jo is 34.4 years: 33.7 years for males, and 34.8 years for females.