Demographics & People — Prairie City, Illinois
Population Overview
| Population (Census) | 386 |
| Estimated 2026 | ~400 |
| Median Age | 47.5 |
| Total Households | 151 |
| Family Households | 94 |
| Average Household Size | 2.4 |
| Diversity Index | 0.2063 (somewhat diverse) |
Race & Ethnicity
| White | 300 |
| Black or African American | 8 |
| Asian | 6 |
| Hispanic or Latino | 24 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 134 |
| Other groups | 91 |
| German | 58 |
| English | 34 |
| Irish | 24 |
| American | 18 |
| Italian | 13 |
| Hispanic: Mexican | 11 |
| Hispanic: Hispanic or Latino | 11 |
| Lithuanian | 6 |
Language
| English Only | 348 |
| Spanish | 5 |
| Population 5+ | 355 |
Veterans
| Veterans | 31 |
| Population 18+ | 284 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Prairie City, Illinois.