Demographics & People — Hartsburg, Illinois
Population Overview
| Population (Census) | 441 |
| Estimated 2026 | ~400 |
| Median Age | 35.2 |
| Total Households | 206 |
| Family Households | 124 |
| Average Household Size | 2.14 |
| Diversity Index | 0.0528 (relatively homogeneous) |
Race & Ethnicity
| White | 394 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 11 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 116 |
| German | 102 |
| Irish | 77 |
| Other groups | 55 |
| American | 25 |
| English | 20 |
| Scotch-Irish | 9 |
| European | 8 |
| Swedish | 6 |
| French (except Basque) | 3 |
Language
| English Only | 419 |
| Spanish | 0 |
| Population 5+ | 419 |
Veterans
| Veterans | 11 |
| Population 18+ | 317 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Hartsburg, Illinois.