Demographics & People — Sammamish, Washington
Population Overview
| Population (Census) | 66,375 |
| Estimated 2026 | ~66,700 |
| Median Age | 39.9 |
| Total Households | 22,096 |
| Family Households | 19,041 |
| Average Household Size | 3.0 |
| Diversity Index | 0.5428 (moderately diverse) |
Race & Ethnicity
| White | 35,229 |
| Black or African American | 1,014 |
| Asian | 24,322 |
| Hispanic or Latino | 2,908 |
Heritage & Ancestry
| Group | Count |
| Other groups | 27,846 |
| Unclassified or not reported | 10,767 |
| German | 8,072 |
| English | 6,298 |
| Irish | 4,093 |
| Italian | 2,584 |
| Hispanic: Hispanic or Latino | 2,395 |
| Swedish | 2,071 |
| American | 1,657 |
| French (except Basque) | 1,451 |
Language
| English Only | 38,153 |
| Spanish | 1,617 |
| Population 5+ | 62,378 |
Veterans
| Veterans | 1,348 |
| Population 18+ | 46,951 |
Commuting
| Mean Commute Time | 29.3 minutes |
| Work from Home | 38.8% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sammamish, Washington.