Demographics & People — Williamsville, Illinois
Population Overview
| Population (Census) | 1,519 |
| Estimated 2026 | ~900 |
| Median Age | 43.4 |
| Total Households | 644 |
| Family Households | 454 |
| Average Household Size | 2.36 |
| Diversity Index | 0.0804 (relatively homogeneous) |
Race & Ethnicity
| White | 1,390 |
| Black or African American | 25 |
| Asian | 13 |
| Hispanic or Latino | 22 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 518 |
| German | 310 |
| Other groups | 234 |
| English | 202 |
| Irish | 147 |
| American | 114 |
| Italian | 65 |
| Scotch-Irish | 54 |
| Scottish | 37 |
| Dutch | 21 |
Language
| English Only | 1,408 |
| Spanish | 31 |
| Population 5+ | 1,452 |
Veterans
| Veterans | 60 |
| Population 18+ | 1,102 |
Commuting
| Mean Commute Time | 25.4 minutes |
| Work from Home | 15.8% |
| 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 Williamsville, Illinois.