Demographics & People — Portola Valley, California
Population Overview
| Population (Census) | 4,329 |
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| Estimated 2026 | ~4,200 |
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| Median Age | 60.6 |
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| Total Households | 1,730 |
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| Family Households | 1,197 |
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| Average Household Size | 2.48 |
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| Diversity Index | 0.3316 (somewhat diverse) |
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Race & Ethnicity
| White | 3,446 |
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| Black or African American | 10 |
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| Asian | 406 |
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| Hispanic or Latino | 412 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 909 |
| German | 844 |
| Unclassified or not reported | 759 |
| English | 610 |
| Hispanic: Hispanic or Latino | 527 |
| Hispanic: Mexican | 479 |
| Italian | 368 |
| Irish | 351 |
| European | 270 |
| Swedish | 253 |
Language
| English Only | 3,520 |
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| Spanish | 62 |
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| Population 5+ | 4,085 |
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Veterans
| Veterans | 183 |
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| Population 18+ | 3,583 |
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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 Portola Valley, California.
