
Castle Hills
- County:
- Bexar County
- County Seat:
- No
- Area (mi²):
- 2.469
- State:
- Texas
Castle Hills is a city located in Bexar County, Texas. Castle Hills has a 2025 population of 3,861. Castle Hills is currently declining at a rate of -0.59% annually and its population has decreased by -2.87% since the most recent census, which recorded a population of 3,975 in 2020.
The average household income in Castle Hills is $144,191 with a poverty rate of 6.11%. The median age in Castle Hills is 42.8 years: 39.9 years for males, and 46.8 years for females.