Sammamish is home to 66,463 people in Washington. That is roughly 144% ahead of the Washington median. Households take in $239,690 a year at the median, 191% more than the country as a whole. 77% of adults hold a bachelor's degree, against 36% nationally. Home values have more than tripled since 2000, reaching $1,407,300. Since 2000 the city has more than doubled, up 32,359 people.
At a glance
Wealthier
median household income $239,690, above the US median
US median: $82,259
Mid-age
median age 39.9
US median: 38.9
More educated
77% hold a bachelor's degree
US average: 36%
Less affordable
home values up 113%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Sammamish
What changed most since 2000
Asian share7.9% → 37.1%(+29.3 pts)US over the same years: +2.3 pts
White share86.1% → 49.2%(−36.9 pts)US over the same years: −11.3 pts
Population34,104 → 66,463(+95%)US over the same years: +19%
Sammamish's population equals 2.9% of King County's. Its number of households without a car equals 0.3% of the county's. Its number of veterans equals 1.3% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)28.2%(300)
US avg: 26.4%
Gulf War (1990s)24%(255)
US avg: 24.3%
Vietnam era25.5%(271)
US avg: 33.1%
Korean War3.1%(33)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 1,063 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Sammamish, decade by decade
Sammamish population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
2000
34,104
$185,066
$661,079
61.5%
31.4
2010
45,780
$193,655
$884,721
69.3%
55.4
2020
67,455
$219,941
$1,064,170
75.1%
75.3
2024
66,463
$239,690
$1,407,300
77.1%
76.5
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
