Demographics & People — Sammamish, Washington

Population Overview

Population (Census)66,375
Estimated 2026~66,700
Median Age39.9
Total Households22,096
Family Households19,041
Average Household Size3.0
Diversity Index0.5428 (moderately diverse)

Race & Ethnicity

White35,229
Black or African American1,014
Asian24,322
Hispanic or Latino2,908

Heritage & Ancestry

GroupCount
Other groups27,846
Unclassified or not reported10,767
German8,072
English6,298
Irish4,093
Italian2,584
Hispanic: Hispanic or Latino2,395
Swedish2,071
American1,657
French (except Basque)1,451

Language

English Only38,153
Spanish1,617
Population 5+62,378

Veterans

Veterans1,348
Population 18+46,951

Commuting

Mean Commute Time29.3 minutes
Work from Home38.8%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sammamish, Washington.