Demographics & People — Gilson, Illinois
Population Overview
| Population (Census) | 149 |
| Estimated 2026 | ~100 |
| Median Age | 63.0 |
| Total Households | 71 |
| Family Households | 56 |
| Average Household Size | 2.1 |
| Diversity Index | 0.0 (relatively homogeneous) |
Race & Ethnicity
| White | 138 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 66 |
| Irish | 44 |
| Dutch | 40 |
| Other groups | 28 |
| Swedish | 9 |
| Welsh | 8 |
| Unclassified or not reported | 8 |
| Canadian | 4 |
Language
| English Only | 133 |
| Spanish | 8 |
| Population 5+ | 149 |
Veterans
| Veterans | 18 |
| Population 18+ | 111 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Gilson, Illinois.