Demographics & People — Castleford, Idaho
Population Overview
| Population (Census) | 166 |
| Estimated 2026 | ~200 |
| Median Age | 40.7 |
| Total Households | 72 |
| Family Households | 42 |
| Average Household Size | 2.31 |
| Diversity Index | 0.4984 (moderately diverse) |
Race & Ethnicity
| White | 111 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 99 |
Heritage & Ancestry
| Group | Count |
| Hispanic: Hispanic or Latino | 140 |
| Other groups | 108 |
| Hispanic: Mexican | 93 |
| Unclassified or not reported | 48 |
| Hispanic: Other Hispanic or Latino | 47 |
| Hispanic: All other Hispanic or Latino | 47 |
| American | 12 |
| Portuguese | 11 |
| German | 8 |
| Irish | 6 |
Language
| English Only | 73 |
| Spanish | 67 |
| Population 5+ | 151 |
Veterans
| Veterans | 2 |
| Population 18+ | 116 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Castleford, Idaho.