Demographics & People — Walnut Creek, California
Population Overview
| Population (Census) | 69,790 |
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| Estimated 2026 | ~70,800 |
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| Median Age | 46.8 |
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| Total Households | 32,142 |
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| Family Households | 18,043 |
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| Average Household Size | 2.14 |
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| Diversity Index | 0.4942 (moderately diverse) |
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Race & Ethnicity
| White | 45,393 |
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| Black or African American | 1,651 |
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| Asian | 11,644 |
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| Hispanic or Latino | 8,265 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 22,520 |
| Unclassified or not reported | 10,213 |
| English | 9,071 |
| German | 8,653 |
| Irish | 7,912 |
| Hispanic: Hispanic or Latino | 7,240 |
| Italian | 4,714 |
| Hispanic: Mexican | 3,446 |
| Russian | 2,227 |
| European | 2,075 |
Language
| English Only | 48,486 |
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| Spanish | 4,767 |
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| Population 5+ | 66,365 |
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Veterans
| Veterans | 3,479 |
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| Population 18+ | 58,923 |
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Commuting
| Mean Commute Time | 30.6 minutes |
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| Work from Home | 30.8% |
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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 Walnut Creek, California.
