Demographics & People — Rest Haven, Illinois
Population Overview
| Population (Census) | 537 |
| Estimated 2026 | ~300 |
| Median Age | 45.9 |
| Total Households | 220 |
| Family Households | 149 |
| Average Household Size | 2.44 |
| Diversity Index | 0.0 (relatively homogeneous) |
Race & Ethnicity
| White | 530 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 153 |
| Polish | 83 |
| Irish | 77 |
| Other groups | 65 |
| Italian | 45 |
| Swedish | 41 |
| Dutch | 36 |
| Danish | 35 |
| American | 25 |
| African | 18 |
Language
| English Only | 530 |
| Spanish | 0 |
| Population 5+ | 530 |
Veterans
| Veterans | 11 |
| Population 18+ | 439 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Rest Haven, Illinois.