Demographics & People — Newcastle, Texas
Population Overview
| Population (Census) | 614 |
| Estimated 2026 | ~1,000 |
| Median Age | 37.4 |
| Total Households | 259 |
| Family Households | 156 |
| Average Household Size | 2.37 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 569 |
| Black or African American | 6 |
| Asian | 0 |
| Hispanic or Latino | 69 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 284 |
| Other groups | 110 |
| American | 97 |
| Irish | 87 |
| Hispanic: Mexican | 69 |
| Hispanic: Hispanic or Latino | 69 |
| English | 58 |
| German | 43 |
| French (except Basque) | 14 |
| Scotch-Irish | 14 |
Language
| English Only | 540 |
| Spanish | 44 |
| Population 5+ | 591 |
Veterans
| Veterans | 15 |
| Population 18+ | 406 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Newcastle, Texas.