Sammamish Flag

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.

63.6K
Total Population
3,112
Density (mi²)
-776 -1.21%
Growth

Sammamish Population

Sammamish Population

Data after 2023 is projected based on recent change

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 (53.1%)

Asian (36.6%)

Two or more races (7.5%)

Black or African American (1.5%)

Other race (0.8%)

Native American (0.4%)

Native Hawaiian or Pacific Islander (0.1%)

Race
Population
Percentage (of total)
White35,22953.08%
Asian24,32236.64%
Two or more races4,9617.47%
Black or African American1,0141.53%
Other race5180.78%
Native American2740.41%
Native Hawaiian or Pacific Islander570.09%

Sammamish Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)