Demographics & People — Dayton, Illinois
Population Overview
| Population (Census) | 363 |
|---|
| Estimated 2026 | ~100 |
|---|
| Median Age | 55.5 |
|---|
| Total Households | 131 |
|---|
| Family Households | 103 |
|---|
| Average Household Size | 2.77 |
|---|
| Diversity Index | 0.09 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 363 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 18 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Irish | 181 |
| German | 171 |
| Other groups | 76 |
| Unclassified or not reported | 59 |
| Polish | 49 |
| Norwegian | 47 |
| Hispanic: Hispanic or Latino | 33 |
| English | 30 |
| Italian | 25 |
| Hispanic: Mexican | 18 |
Language
| English Only | 352 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 352 |
|---|
Veterans
| Veterans | 76 |
|---|
| Population 18+ | 386 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Dayton, Illinois.
