Demographics & People — St. Leon, Indiana
Population Overview
| Population (Census) | 1,012 |
| Estimated 2026 | ~400 |
| Median Age | 33.5 |
| Total Households | 315 |
| Family Households | 251 |
| Average Household Size | 3.21 |
| Diversity Index | 0.0 (relatively homogeneous) |
Race & Ethnicity
| White | 933 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 582 |
| Unclassified or not reported | 271 |
| Irish | 150 |
| Other groups | 115 |
| English | 82 |
| Eastern European | 30 |
| American | 29 |
| Italian | 28 |
| Canadian | 9 |
| European | 8 |
Language
| English Only | 960 |
| Spanish | 0 |
| Population 5+ | 962 |
Veterans
| Veterans | 45 |
| Population 18+ | 737 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Leon, Indiana.