Demographics & People — Iselin, New Jersey
Population Overview
| Population (Census) | 19,151 |
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| Estimated 2026 | ~20,500 |
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| Median Age | 38.5 |
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| Total Households | 6,354 |
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| Family Households | 5,344 |
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| Average Household Size | 3.01 |
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| Diversity Index | 0.6083 (highly diverse) |
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Race & Ethnicity
| White | 4,714 |
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| Black or African American | 1,557 |
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| Asian | 10,441 |
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| Hispanic or Latino | 2,048 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 9,629 |
| Unclassified or not reported | 4,161 |
| Hispanic: Hispanic or Latino | 1,789 |
| Irish | 1,382 |
| Italian | 1,302 |
| German | 1,036 |
| Polish | 1,010 |
| Hispanic: South American | 716 |
| Hispanic: Puerto Rican | 664 |
| Hungarian | 466 |
Language
| English Only | 6,578 |
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| Spanish | 1,561 |
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| Population 5+ | 18,311 |
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Veterans
| Veterans | 369 |
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| Population 18+ | 15,242 |
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Commuting
| Mean Commute Time | 34.5 minutes |
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| Work from Home | 20.8% |
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| Commuter Profile | N/A |
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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 Iselin, New Jersey.
