Demographics & People — Costilla, New Mexico
Population Overview
| Population (Census) | 498 |
| Estimated 2026 | ~400 |
| Median Age | 35.4 |
| Total Households | 144 |
| Family Households | 103 |
| Average Household Size | 3.46 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 0 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 498 |
Heritage & Ancestry
| Group | Count |
| Other groups | 414 |
| Hispanic: Other Hispanic or Latino | 414 |
| Hispanic: All other Hispanic or Latino | 414 |
| Hispanic: Hispanic or Latino | 414 |
Language
| English Only | 457 |
| Spanish | 41 |
| Population 5+ | 498 |
Veterans
| Veterans | 0 |
| Population 18+ | 259 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Costilla, New Mexico.