Demographics & People — Mound City, Illinois
Population Overview
| Population (Census) | 756 |
| Estimated 2026 | ~500 |
| Median Age | 37.4 |
| Total Households | 202 |
| Family Households | 135 |
| Average Household Size | 3.74 |
| Diversity Index | 0.4998 (moderately diverse) |
Race & Ethnicity
| White | 398 |
| Black or African American | 330 |
| Asian | 3 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| Other groups | 424 |
| Unclassified or not reported | 266 |
| American | 43 |
| German | 37 |
| Arab | 24 |
| Other Arab | 24 |
| Irish | 23 |
| Scandinavian | 5 |
| African | 3 |
| Subsaharan African | 3 |
Language
| English Only | 694 |
| Spanish | 0 |
| Population 5+ | 727 |
Veterans
| Veterans | 9 |
| Population 18+ | 570 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Mound City, Illinois.