Sammamish

County:: King County
County Seat:: No
Area (mi²):: 20.427
State:: Washington

Sammamish is a city located in King County, Washington. Sammamish has a 2025 population of 63,564. Sammamish is currently declining at a rate of -1.21% annually and its population has decreased by -5.75% since the most recent census, which recorded a population of 67,444 in 2020.

The average household income in Sammamish is $280,644 with a poverty rate of 4.4%. The median age in Sammamish is 39.4 years: 40.1 years for males, and 38.8 years for females.

Demographics

The racial composition of Sammamish includes 53.08% White, 36.64% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	35,229	53.08%
Asian	24,322	36.64%
Two or more races	4,961	7.47%
Black or African American	1,014	1.53%
Other race	518	0.78%
Native American	274	0.41%
Native Hawaiian or Pacific Islander	57	0.09%

Sammamish Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sammamish's average per capita income is $133,820. Household income levels show a median of $227,273. The poverty rate stands at 4.4%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$250,001	-
Families	$248,873	$300,791
Households	$227,273	$280,644
Non Families	$105,425	$146,839

$133,820

Average Income

$227,273

Median Household Income

4.4%

Poverty Rate