Demographics & People — San Marcos, California
Population Overview
| Population (Census) | 94,078 |
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| Estimated 2026 | ~96,800 |
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| Median Age | 36.8 |
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| Total Households | 30,880 |
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| Family Households | 22,829 |
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| Average Household Size | 2.99 |
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| Diversity Index | 0.5857 (moderately diverse) |
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Race & Ethnicity
| White | 51,844 |
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| Black or African American | 1,391 |
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| Asian | 10,241 |
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| Hispanic or Latino | 35,136 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 47,802 |
| Hispanic: Hispanic or Latino | 37,533 |
| Hispanic: Mexican | 32,297 |
| Unclassified or not reported | 16,731 |
| German | 8,429 |
| Irish | 7,900 |
| English | 7,496 |
| Italian | 3,353 |
| European | 2,224 |
| American | 2,121 |
Language
| English Only | 57,422 |
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| Spanish | 21,957 |
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| Population 5+ | 88,270 |
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Veterans
| Veterans | 4,558 |
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| Population 18+ | 69,716 |
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Commuting
| Mean Commute Time | 26.5 minutes |
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| Work from Home | 20.5% |
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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 Marcos, California.
