Demographics & People — Winchester, Idaho
Population Overview
| Population (Census) | 300 |
| Estimated 2026 | ~300 |
| Median Age | 54.7 |
| Total Households | 120 |
| Family Households | 60 |
| Average Household Size | 2.07 |
| Diversity Index | 0.0956 (relatively homogeneous) |
Race & Ethnicity
| White | 266 |
| Black or African American | 0 |
| Asian | 2 |
| Hispanic or Latino | 12 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 108 |
| German | 53 |
| Norwegian | 26 |
| Other groups | 26 |
| Irish | 25 |
| English | 24 |
| Scottish | 14 |
| French (except Basque) | 8 |
| Hispanic: Hispanic or Latino | 8 |
| Welsh | 7 |
Language
| English Only | 279 |
| Spanish | 4 |
| Population 5+ | 283 |
Veterans
| Veterans | 40 |
| Population 18+ | 226 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Winchester, Idaho.