Demographics & People — Dahlgren, Illinois
Population Overview
| Population (Census) | 631 |
|---|
| Estimated 2026 | ~500 |
|---|
| Median Age | 25.1 |
|---|
| Total Households | 220 |
|---|
| Family Households | 136 |
|---|
| Average Household Size | 2.87 |
|---|
| Diversity Index | 0.0373 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 619 |
|---|
| Black or African American | 0 |
|---|
| Asian | 12 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 220 |
| English | 141 |
| Irish | 130 |
| German | 122 |
| American | 82 |
| Other groups | 55 |
| Polish | 23 |
| Scotch-Irish | 9 |
| French (except Basque) | 7 |
| Scottish | 5 |
Language
| English Only | 544 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 558 |
|---|
Veterans
| Veterans | 55 |
|---|
| Population 18+ | 404 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Dahlgren, Illinois.
