Demographics & People — McLeansboro, Illinois
Population Overview
| Population (Census) | 2,750 |
| Estimated 2026 | ~2,500 |
| Median Age | 41.8 |
| Total Households | 1,265 |
| Family Households | 575 |
| Average Household Size | 2.1 |
| Diversity Index | 0.0592 (relatively homogeneous) |
Race & Ethnicity
| White | 2,655 |
| Black or African American | 4 |
| Asian | 25 |
| Hispanic or Latino | 54 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 1,177 |
| German | 596 |
| Other groups | 461 |
| English | 375 |
| Irish | 340 |
| American | 174 |
| Hispanic: Hispanic or Latino | 90 |
| Hispanic: Mexican | 84 |
| French (except Basque) | 83 |
| Dutch | 53 |
Language
| English Only | 2,575 |
| Spanish | 12 |
| Population 5+ | 2,599 |
Veterans
| Veterans | 175 |
| Population 18+ | 2,168 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for McLeansboro, Illinois.