Demographics & People — Cos Cob, Connecticut
Population Overview
| Population (Census) | 7,354 |
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| Estimated 2026 | ~8,000 |
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| Median Age | 39.6 |
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| Total Households | 2,635 |
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| Family Households | 2,050 |
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| Average Household Size | 2.78 |
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| Diversity Index | 0.3919 (somewhat diverse) |
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Race & Ethnicity
| White | 5,290 |
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| Black or African American | 211 |
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| Asian | 394 |
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| Hispanic or Latino | 1,043 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 1,829 |
| Italian | 1,447 |
| Irish | 1,212 |
| Unclassified or not reported | 1,060 |
| Hispanic: Hispanic or Latino | 1,038 |
| English | 793 |
| German | 532 |
| Hispanic: Puerto Rican | 488 |
| American | 421 |
| Hispanic: South American | 327 |
Language
| English Only | 5,018 |
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| Spanish | 437 |
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| Population 5+ | 6,692 |
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Veterans
| Veterans | 203 |
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| Population 18+ | 5,202 |
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Commuting
| Mean Commute Time | 28.9 minutes |
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| Work from Home | 30.0% |
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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 Cos Cob, Connecticut.
