Demographics & People — Union, Illinois
Population Overview
| Population (Census) | 753 |
| Estimated 2026 | ~400 |
| Median Age | 39.0 |
| Total Households | 299 |
| Family Households | 205 |
| Average Household Size | 2.52 |
| Diversity Index | 0.1692 (relatively homogeneous) |
Race & Ethnicity
| White | 691 |
| Black or African American | 2 |
| Asian | 42 |
| Hispanic or Latino | 25 |
Heritage & Ancestry
| Group | Count |
| German | 205 |
| Unclassified or not reported | 173 |
| Irish | 74 |
| English | 60 |
| Other groups | 59 |
| Italian | 33 |
| Norwegian | 30 |
| Polish | 27 |
| Swedish | 16 |
| Hispanic: Mexican | 14 |
Language
| English Only | 678 |
| Spanish | 10 |
| Population 5+ | 735 |
Veterans
| Veterans | 22 |
| Population 18+ | 426 |
Commuting
| Mean Commute Time | 30.3 minutes |
| Work from Home | 4.9% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Union, Illinois.