Demographics & People — Black Diamond, Washington
Population Overview
| Population (Census) | 5,678 |
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| Estimated 2026 | ~6,700 |
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| Median Age | 38.1 |
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| Total Households | 2,181 |
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| Family Households | 1,666 |
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| Average Household Size | 2.6 |
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| Diversity Index | 0.3702 (somewhat diverse) |
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Race & Ethnicity
| White | 4,239 |
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| Black or African American | 21 |
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| Asian | 647 |
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| Hispanic or Latino | 539 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 1,190 |
| Other groups | 1,063 |
| Unclassified or not reported | 1,053 |
| English | 798 |
| Irish | 741 |
| Hispanic: Hispanic or Latino | 475 |
| Norwegian | 321 |
| Italian | 271 |
| European | 266 |
| American | 243 |
Language
| English Only | 4,586 |
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| Spanish | 281 |
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| Population 5+ | 5,321 |
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Veterans
| Veterans | 427 |
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| Population 18+ | 4,017 |
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Commuting
| Mean Commute Time | 37.5 minutes |
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| Work from Home | 24.9% |
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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 Black Diamond, Washington.
