Demographics & People — Lake Santee, Indiana
Population Overview
| Population (Census) | 1,051 |
| Estimated 2026 | ~500 |
| Median Age | 46.8 |
| Total Households | 387 |
| Family Households | 324 |
| Average Household Size | 2.72 |
| Diversity Index | 0.1172 (relatively homogeneous) |
Race & Ethnicity
| White | 930 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 62 |
Heritage & Ancestry
| Group | Count |
| Irish | 251 |
| German | 218 |
| American | 137 |
| Other groups | 112 |
| Hispanic: Spaniard | 72 |
| Hispanic: Other Hispanic or Latino | 72 |
| Hispanic: Hispanic or Latino | 72 |
| English | 63 |
| Unclassified or not reported | 53 |
| Scottish | 28 |
Language
| English Only | 1,005 |
| Spanish | 0 |
| Population 5+ | 1,005 |
Veterans
| Veterans | 57 |
| Population 18+ | 593 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Lake Santee, Indiana.