Demographics & People — Garden Prairie, Illinois
Population Overview
| Population (Census) | 560 |
| Estimated 2026 | ~200 |
| Median Age | 15.9 |
| Total Households | 158 |
| Family Households | 103 |
| Average Household Size | 3.54 |
| Diversity Index | 0.1111 (relatively homogeneous) |
Race & Ethnicity
| White | 494 |
| Black or African American | 0 |
| Asian | 31 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 224 |
| Irish | 206 |
| Unclassified or not reported | 38 |
| American | 37 |
| Scandinavian | 15 |
| Italian | 14 |
Language
| English Only | 514 |
| Spanish | 0 |
| Population 5+ | 514 |
Veterans
| Veterans | 15 |
| Population 18+ | 177 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Garden Prairie, Illinois.