Demographics & People — Auburn, Indiana
Population Overview
| Population (Census) | 13,464 |
| Estimated 2026 | ~13,800 |
| Median Age | 35.6 |
| Total Households | 5,572 |
| Family Households | 3,504 |
| Average Household Size | 2.38 |
| Diversity Index | 0.047 (relatively homogeneous) |
Race & Ethnicity
| White | 12,955 |
| Black or African American | 6 |
| Asian | 9 |
| Hispanic or Latino | 304 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 4,001 |
| German | 3,692 |
| English | 2,328 |
| Other groups | 1,524 |
| Irish | 1,323 |
| American | 706 |
| Polish | 412 |
| Dutch | 404 |
| French (except Basque) | 379 |
| European | 224 |
Language
| English Only | 12,286 |
| Spanish | 192 |
| Population 5+ | 12,558 |
Veterans
| Veterans | 649 |
| Population 18+ | 9,905 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Auburn, Indiana.