Demographics & People — Sesser, Illinois
Population Overview
| Population (Census) | 1,919 |
| Estimated 2026 | ~2,300 |
| Median Age | 38.3 |
| Total Households | 712 |
| Family Households | 540 |
| Average Household Size | 2.7 |
| Diversity Index | 0.1176 (relatively homogeneous) |
Race & Ethnicity
| White | 1,812 |
| Black or African American | 0 |
| Asian | 62 |
| Hispanic or Latino | 57 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 705 |
| Other groups | 365 |
| English | 293 |
| German | 284 |
| Irish | 252 |
| Italian | 78 |
| Hispanic: Mexican | 70 |
| Hispanic: Hispanic or Latino | 70 |
| American | 64 |
| European | 53 |
Language
| English Only | 1,751 |
| Spanish | 0 |
| Population 5+ | 1,798 |
Veterans
| Veterans | 191 |
| Population 18+ | 1,458 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sesser, Illinois.