Demographics & People — Castle Hills, Texas
Population Overview
| Population (Census) | 3,961 |
| Estimated 2026 | ~3,900 |
| Median Age | 41.4 |
| Total Households | 1,457 |
| Family Households | 944 |
| Average Household Size | 2.69 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 2,253 |
| Black or African American | 47 |
| Asian | 152 |
| Hispanic or Latino | 1,983 |
Heritage & Ancestry
| Group | Count |
| Other groups | 2,178 |
| Hispanic: Hispanic or Latino | 1,968 |
| Hispanic: Mexican | 1,686 |
| English | 445 |
| German | 413 |
| Unclassified or not reported | 404 |
| Irish | 226 |
| American | 140 |
| Hispanic: Central American | 132 |
| Hispanic: Other Hispanic or Latino | 129 |
Language
| English Only | 2,480 |
| Spanish | 1,192 |
| Population 5+ | 3,776 |
Veterans
| Veterans | 252 |
| Population 18+ | 3,112 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Castle Hills, Texas.