Mountain City
- County:
- Caldwell County
- County Seat:
- No
- Area (mi²):
- 0.526
- State:
- Texas
Mountain City is a city located in Caldwell County, Texas. Mountain City has a 2026 population of 676. Mountain City is currently declining at a rate of -0.73% annually but its population has increased by 6.96% since the most recent census, which recorded a population of 632 in 2020.