Demographics & People — Louisville, Illinois
Population Overview
| Population (Census) | 1,288 |
|---|
| Estimated 2026 | ~900 |
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| Median Age | 40.3 |
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| Total Households | 514 |
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| Family Households | 283 |
|---|
| Average Household Size | 2.34 |
|---|
| Diversity Index | 0.1018 (relatively homogeneous) |
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Race & Ethnicity
| White | 1,250 |
|---|
| Black or African American | 34 |
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| Asian | 0 |
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| Hispanic or Latino | 36 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 553 |
| Other groups | 181 |
| English | 175 |
| German | 148 |
| Irish | 145 |
| American | 78 |
| Italian | 32 |
| Hispanic: Hispanic or Latino | 16 |
| Hispanic: Puerto Rican | 11 |
| Czech | 9 |
Language
| English Only | 1,151 |
|---|
| Spanish | 40 |
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| Population 5+ | 1,191 |
|---|
Veterans
| Veterans | 47 |
|---|
| Population 18+ | 872 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Louisville, Illinois.
