Demographics & People — Holiday Hills, Illinois
Population Overview
| Population (Census) | 662 |
| Estimated 2026 | ~600 |
| Median Age | 51.8 |
| Total Households | 262 |
| Family Households | 208 |
| Average Household Size | 2.53 |
| Diversity Index | 0.1604 (relatively homogeneous) |
Race & Ethnicity
| White | 578 |
| Black or African American | 0 |
| Asian | 7 |
| Hispanic or Latino | 48 |
Heritage & Ancestry
| Group | Count |
| German | 193 |
| Unclassified or not reported | 192 |
| Polish | 119 |
| Other groups | 90 |
| Hispanic: Mexican | 68 |
| Hispanic: Hispanic or Latino | 68 |
| Irish | 45 |
| English | 34 |
| Danish | 32 |
| Italian | 31 |
Language
| English Only | 559 |
| Spanish | 45 |
| Population 5+ | 637 |
Veterans
| Veterans | 11 |
| Population 18+ | 561 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Holiday Hills, Illinois.