Demographics & People — Holtsville, New York
Population Overview
| Population (Census) | 19,250 |
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| Estimated 2026 | ~19,600 |
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| Median Age | 38.9 |
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| Total Households | 6,368 |
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| Family Households | 4,956 |
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| Average Household Size | 3.01 |
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| Diversity Index | N/A (N/A) |
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Race & Ethnicity
| White | 15,344 |
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| Black or African American | 1,027 |
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| Asian | 687 |
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| Hispanic or Latino | 3,071 |
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Heritage & Ancestry
| Group | Count |
|---|
| Italian | 6,024 |
| Other groups | 4,228 |
| Irish | 4,186 |
| Hispanic: Hispanic or Latino | 3,209 |
| Unclassified or not reported | 3,041 |
| German | 2,929 |
| American | 1,464 |
| Hispanic: Puerto Rican | 1,312 |
| English | 944 |
| Polish | 908 |
Language
| English Only | 14,992 |
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| Spanish | 1,590 |
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| Population 5+ | 18,165 |
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Veterans
| Veterans | 679 |
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| Population 18+ | 15,454 |
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Commuting
| Mean Commute Time | 32.9 minutes |
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| Work from Home | 9.1% |
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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 Holtsville, New York.
