Demographics & People — Kinderhook, Illinois
Population Overview
| Population (Census) | 245 |
| Estimated 2026 | ~300 |
| Median Age | 31.2 |
| Total Households | 84 |
| Family Households | 66 |
| Average Household Size | 2.92 |
| Diversity Index | 0.0083 (relatively homogeneous) |
Race & Ethnicity
| White | 238 |
| Black or African American | 0 |
| Asian | 1 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 91 |
| American | 64 |
| Other groups | 51 |
| German | 42 |
| English | 28 |
| Irish | 17 |
| Scotch-Irish | 4 |
| Italian | 2 |
| French (except Basque) | 2 |
| Russian | 2 |
Language
| English Only | 202 |
| Spanish | 0 |
| Population 5+ | 205 |
Veterans
| Veterans | 19 |
| Population 18+ | 208 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Kinderhook, Illinois.