Demographics & People — Keithsburg, Illinois
Population Overview
| Population (Census) | 520 |
| Estimated 2026 | ~400 |
| Median Age | 52.7 |
| Total Households | 260 |
| Family Households | 143 |
| Average Household Size | 2.0 |
| Diversity Index | 0.0156 (relatively homogeneous) |
Race & Ethnicity
| White | 505 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 4 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 298 |
| German | 116 |
| Irish | 48 |
| American | 43 |
| English | 26 |
| Other groups | 25 |
| Scotch-Irish | 24 |
| Italian | 18 |
| Swedish | 12 |
| Polish | 10 |
Language
| English Only | 483 |
| Spanish | 1 |
| Population 5+ | 489 |
Veterans
| Veterans | 79 |
| Population 18+ | 470 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Keithsburg, Illinois.