Demographics & People — Tetonia, Idaho
Population Overview
| Population (Census) | 368 |
| Estimated 2026 | ~600 |
| Median Age | 28.5 |
| Total Households | 106 |
| Family Households | 66 |
| Average Household Size | 3.47 |
| Diversity Index | 0.2888 (somewhat diverse) |
Race & Ethnicity
| White | 297 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 63 |
Heritage & Ancestry
| Group | Count |
| English | 113 |
| Unclassified or not reported | 111 |
| Other groups | 79 |
| Hispanic: Mexican | 69 |
| Hispanic: Hispanic or Latino | 69 |
| American | 27 |
| Scandinavian | 27 |
| German | 22 |
| Scottish | 20 |
| Irish | 17 |
Language
| English Only | 298 |
| Spanish | 61 |
| Population 5+ | 359 |
Veterans
| Veterans | 8 |
| Population 18+ | 271 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Tetonia, Idaho.