Demographics & People — Dundas, Illinois
Population Overview
| Population (Census) | 264 |
| Estimated 2026 | ~300 |
| Median Age | 51.6 |
| Total Households | 113 |
| Family Households | 76 |
| Average Household Size | 2.34 |
| Diversity Index | 0.0 (relatively homogeneous) |
Race & Ethnicity
| White | 264 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 139 |
| English | 113 |
| German | 81 |
| Irish | 53 |
| Italian | 45 |
| Other groups | 30 |
Language
| English Only | 264 |
| Spanish | 0 |
| Population 5+ | 264 |
Veterans
| Veterans | 0 |
| Population 18+ | 245 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Dundas, Illinois.