Demographics & People — Illiopolis, Illinois
Population Overview
| Population (Census) | 854 |
|---|
| Estimated 2026 | ~1,000 |
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| Median Age | 43.3 |
|---|
| Total Households | 357 |
|---|
| Family Households | 242 |
|---|
| Average Household Size | 2.39 |
|---|
| Diversity Index | 0.0705 (relatively homogeneous) |
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Race & Ethnicity
| White | 799 |
|---|
| Black or African American | 19 |
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| Asian | 5 |
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| Hispanic or Latino | 6 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 317 |
| German | 190 |
| English | 141 |
| Irish | 102 |
| Other groups | 70 |
| American | 54 |
| Italian | 39 |
| Scottish | 21 |
| Dutch | 16 |
| Hispanic: Hispanic or Latino | 13 |
Language
| English Only | 792 |
|---|
| Spanish | 3 |
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| Population 5+ | 798 |
|---|
Veterans
| Veterans | 65 |
|---|
| Population 18+ | 605 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Illiopolis, Illinois.
