Demographics & People — San Marino, California
Population Overview
| Population (Census) | 12,279 |
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| Estimated 2026 | ~12,100 |
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| Median Age | 45.7 |
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| Total Households | 3,807 |
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| Family Households | 3,230 |
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| Average Household Size | 3.2 |
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| Diversity Index | 0.4609 (moderately diverse) |
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Race & Ethnicity
| White | 2,826 |
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| Black or African American | 40 |
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| Asian | 8,462 |
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| Hispanic or Latino | 882 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 8,642 |
| Unclassified or not reported | 1,630 |
| Hispanic: Hispanic or Latino | 791 |
| German | 637 |
| English | 450 |
| Irish | 402 |
| Hispanic: Mexican | 370 |
| American | 332 |
| Italian | 252 |
| Scottish | 220 |
Language
| English Only | 4,598 |
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| Spanish | 566 |
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| Population 5+ | 11,714 |
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Veterans
| Veterans | 235 |
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| Population 18+ | 9,548 |
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Commuting
| Mean Commute Time | 26.6 minutes |
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| Work from Home | 28.4% |
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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 San Marino, California.
