Demographics & People — Nashville, Ohio
Population Overview
| Population (Census) | 374 |
| Estimated 2026 | ~700 |
| Median Age | 25.1 |
| Total Households | 99 |
| Family Households | 86 |
| Average Household Size | 3.78 |
| Diversity Index | 0.033 (relatively homogeneous) |
Race & Ethnicity
| White | 351 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 6 |
Heritage & Ancestry
| Group | Count |
| English | 185 |
| German | 77 |
| Unclassified or not reported | 49 |
| Scandinavian | 9 |
| Irish | 7 |
| American | 6 |
| Other groups | 5 |
| Swiss | 3 |
| Hispanic: Mexican | 3 |
| Hispanic: Hispanic or Latino | 3 |
Language
| English Only | 311 |
| Spanish | 2 |
| Population 5+ | 340 |
Veterans
| Veterans | 18 |
| Population 18+ | 178 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Nashville, Ohio.