Demographics & People — Smelterville, Idaho
Population Overview
| Population (Census) | 670 |
| Estimated 2026 | ~700 |
| Median Age | 54.2 |
| Total Households | 313 |
| Family Households | 167 |
| Average Household Size | 2.14 |
| Diversity Index | 0.0622 (relatively homogeneous) |
Race & Ethnicity
| White | 602 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 20 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 225 |
| German | 188 |
| Other groups | 134 |
| Irish | 91 |
| Finnish | 71 |
| English | 43 |
| Scottish | 34 |
| Dutch | 33 |
| Hispanic: Mexican | 25 |
| Hispanic: Hispanic or Latino | 25 |
Language
| English Only | 645 |
| Spanish | 0 |
| Population 5+ | 645 |
Veterans
| Veterans | 67 |
| Population 18+ | 665 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Smelterville, Idaho.