Demographics & People — St. Elmo, Illinois
Population Overview
| Population (Census) | 1,401 |
|---|
| Estimated 2026 | ~1,000 |
|---|
| Median Age | 40.1 |
|---|
| Total Households | 494 |
|---|
| Family Households | 282 |
|---|
| Average Household Size | 2.74 |
|---|
| Diversity Index | 0.0329 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 1,358 |
|---|
| Black or African American | 9 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 14 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 549 |
| German | 295 |
| American | 161 |
| Other groups | 154 |
| English | 150 |
| Irish | 134 |
| Italian | 57 |
| Swedish | 21 |
| Scottish | 20 |
| Scotch-Irish | 19 |
Language
| English Only | 1,289 |
|---|
| Spanish | 4 |
|---|
| Population 5+ | 1,303 |
|---|
Veterans
| Veterans | 49 |
|---|
| Population 18+ | 1,043 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Elmo, Illinois.
