Demographics & People — Adair, Illinois
Population Overview
| Population (Census) | 148 |
|---|
| Estimated 2026 | ~500 |
|---|
| Median Age | 19.8 |
|---|
| Total Households | 67 |
|---|
| Family Households | 45 |
|---|
| Average Household Size | 2.21 |
|---|
| Diversity Index | 0.1023 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 140 |
|---|
| Black or African American | 8 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 90 |
| German | 68 |
| Other groups | 48 |
| Irish | 33 |
| American | 27 |
| English | 14 |
Language
| English Only | 142 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 142 |
|---|
Veterans
| Veterans | 23 |
|---|
| Population 18+ | 202 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Adair, Illinois.
