Demographics & People — Thomasboro, Illinois
Population Overview
| Population (Census) | 966 |
| Estimated 2026 | ~800 |
| Median Age | 44.5 |
| Total Households | 434 |
| Family Households | 278 |
| Average Household Size | 2.23 |
| Diversity Index | 0.2046 (somewhat diverse) |
Race & Ethnicity
| White | 856 |
| Black or African American | 28 |
| Asian | 5 |
| Hispanic or Latino | 75 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 365 |
| German | 312 |
| Irish | 141 |
| Other groups | 141 |
| American | 74 |
| English | 67 |
| Hispanic: Hispanic or Latino | 50 |
| Hispanic: Mexican | 45 |
| Italian | 42 |
| Norwegian | 20 |
Language
| English Only | 858 |
| Spanish | 31 |
| Population 5+ | 912 |
Veterans
| Veterans | 128 |
| Population 18+ | 845 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Thomasboro, Illinois.