
South Mountain
- County:
- Bell County
- County Seat:
- No
- Area (mi²):
- 1.613
- State:
- Texas
South Mountain is a town located in Bell County, Texas. South Mountain has a 2025 population of 411. South Mountain is currently growing at a rate of 0.24% annually and its population has increased by 1.23% since the most recent census, which recorded a population of 406 in 2020.
The average household income in South Mountain is $76,680 with a poverty rate of 6.46%. The median age in South Mountain is 57.3 years: 48.5 years for males, and 62.8 years for females.