Demographics & People — East Alton, Illinois
Population Overview
| Population (Census) | 5,729 |
| Estimated 2026 | ~5,600 |
| Median Age | 45.2 |
| Total Households | 2,747 |
| Family Households | 1,668 |
| Average Household Size | 2.09 |
| Diversity Index | 0.0859 (relatively homogeneous) |
Race & Ethnicity
| White | 5,225 |
| Black or African American | 92 |
| Asian | 0 |
| Hispanic or Latino | 151 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 1,804 |
| German | 1,654 |
| Other groups | 917 |
| Irish | 809 |
| English | 577 |
| American | 325 |
| French (except Basque) | 168 |
| Italian | 149 |
| Hispanic: Hispanic or Latino | 132 |
| European | 103 |
Language
| English Only | 5,308 |
| Spanish | 0 |
| Population 5+ | 5,353 |
Veterans
| Veterans | 454 |
| Population 18+ | 4,645 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for East Alton, Illinois.