Castle Hills, Texas
Castle Hills is a small residential city in Bexar County that sits about 7 miles from downtown San Antonio, effectively surrounded by the larger city on the South Central Texas plain. Its terrain is gently rolling, at the transition between the coastal plain and the edge of the Hill Country to the northwest. The city is almost entirely built out as an established residential enclave within the San Antonio metropolitan area.
Place essentials
Official Census snapshot- Census place type
- City
- July 2025 population
- 3,948
- Change from 2020 base
- -0.8%
- Land area
- 2.5 sq. mi.
- County footprint
- Bexar County
Place type, county footprint, and land area use the Census Bureau's January 1, 2025 geography. Population uses Vintage 2025 estimates through July 1, 2025; change compares that estimate with the April 1, 2020 estimates base. Geography file | Population file
Property here runs through the appraisal district and tax office for Bexar County. The homestead exemption, appraisal cap, protests, and any MUD, PID, or special districts all sit at the parcel level.
Official routes
Use the office for the parcel address; a mailing city is not always the governing city.
County context
What to know around Castle Hills
County lines carry much of the property, land, water, and outdoors context around Castle Hills.
Urban Park
Brackenridge Park Sits Just Below the San Antonio River Headwaters
Brackenridge Park holds a stretch of the San Antonio River just below its headwaters, plus the Zoo, the Japanese Tea Garden, and 11,000 years of human history in one place.
Property tax
How to file your homestead exemption in Bexar County
Texas homeowners who live in their home as a primary residence can reduce their taxable value by filing a homestead exemption with the Bexar Central Appraisal District.
Garden
The Japanese Tea Garden Grew From an Old Quarry
San Antonio turned an old cement quarry into a garden, then trusted the Jingu family to care for it. Their story still gives the place much of its meaning.
Nearby
Places near Castle Hills
Nearby counties
Local notes for nearby counties
Next steps for Castle Hills
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