Demographics & People — Tecumseh, Indiana
Population Overview
| Population (Census) | 870 |
| Estimated 2026 | ~300 |
| Median Age | 58.2 |
| Total Households | 311 |
| Family Households | 273 |
| Average Household Size | 2.8 |
| Diversity Index | 0.0908 (relatively homogeneous) |
Race & Ethnicity
| White | 739 |
| Black or African American | 0 |
| Asian | 37 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 305 |
| German | 231 |
| Northern European | 128 |
| Scottish | 74 |
| Dutch | 73 |
| Italian | 61 |
| English | 61 |
| Other groups | 45 |
| Irish | 37 |
| American | 30 |
Language
| English Only | 765 |
| Spanish | 0 |
| Population 5+ | 802 |
Veterans
| Veterans | 20 |
| Population 18+ | 642 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Tecumseh, Indiana.