Demographics & People — Johnsburg, Illinois
Population Overview
| Population (Census) | 6,374 |
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| Estimated 2026 | ~6,400 |
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| Median Age | 49.1 |
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| Total Households | 2,349 |
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| Family Households | 1,783 |
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| Average Household Size | 2.71 |
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| Diversity Index | 0.1726 (relatively homogeneous) |
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Race & Ethnicity
| White | 5,810 |
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| Black or African American | 76 |
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| Asian | 63 |
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| Hispanic or Latino | 459 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 2,914 |
| Irish | 1,409 |
| Unclassified or not reported | 1,243 |
| Other groups | 689 |
| Italian | 651 |
| Polish | 611 |
| Hispanic: Hispanic or Latino | 398 |
| English | 395 |
| Hispanic: Mexican | 306 |
| Scottish | 258 |
Language
| English Only | 5,729 |
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| Spanish | 78 |
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| Population 5+ | 5,949 |
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Veterans
| Veterans | 357 |
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| Population 18+ | 4,865 |
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Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Johnsburg, Illinois.
