Demographics & People — Marin City, California
Population Overview
| Population (Census) | 3,597 |
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| Estimated 2026 | ~2,400 |
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| Median Age | 41.4 |
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| Total Households | 1,504 |
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| Family Households | 1,022 |
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| Average Household Size | 2.39 |
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| Diversity Index | 0.7376 (highly diverse) |
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Race & Ethnicity
| White | 1,150 |
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| Black or African American | 769 |
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| Asian | 918 |
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| Hispanic or Latino | 630 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 1,458 |
| Unclassified or not reported | 843 |
| Hispanic: Hispanic or Latino | 449 |
| Irish | 372 |
| German | 360 |
| Hispanic: Mexican | 199 |
| English | 146 |
| African | 145 |
| Subsaharan African | 145 |
| Hispanic: Central American | 136 |
Language
| English Only | 1,988 |
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| Spanish | 403 |
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| Population 5+ | 3,467 |
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Veterans
| Veterans | 178 |
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| Population 18+ | 2,661 |
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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 Marin City, California.
