Sammamish, WA Demographics

A map of Sammamish's Population by Race

Sammamish, Washington has an estimated population of 66,463, a slight decrease from the 67,455 recorded in the 2020 Census. The population is 49.2% White, 37.1% Asian, 5.9% Multiracial, 5.6% Hispanic, 1.3% Black, and 0.8% Native American/Other. This demographic dot map shows the population of Sammamish, with one dot drawn for each person counted by the Census, color-coded by race.

Sammamish has become more racially diverse since the 2020 Census. It is more diverse than Washington overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Sammamish, that probability was 60.2% in 2020 and 61.3% in the most recent ACS estimates.

Sammamish is ranked the 20th most populous place in Washington, out of 639 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Sammamish was ranked the 19th most populous place in the 2020 Census.

Sammamish's White Population

32,717 residents of Sammamish, or 49.2% of the population, identify as White. The share of White residents in Sammamish is considerably lower than in Washington overall, where 63.1% of the population is White. Sammamish ranks 548th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, Sammamish's White population has declined by an estimated 5.6%. White residents' share of Sammamish's population has decreased from 51.4% to 49.2%.

Sammamish is more White than neighboring Redmond (44.8% White), and Bellevue (39.9% White). Sammamish is less White than neighboring Issaquah (55.7% White), Union Hill-Novelty Hill (56.5% White), and Ames Lake (64.9% White).

Sammamish's Black Population

885 residents of Sammamish, or 1.3% of the population, identify as Black. The share of Black residents in Sammamish is slightly lower than in Washington overall, where 3.8% of the population is Black. Sammamish ranks 173rd statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, Sammamish's Black population has grown by an estimated 7.0%. Black residents' share of Sammamish's population has remained roughly unchanged at 1.3%.

Sammamish is more Black than neighboring Ames Lake (0% Black). Sammamish is less Black than neighboring Issaquah (2.2% Black), Union Hill-Novelty Hill (2.3% Black), Redmond (2.2% Black), and Bellevue (2.6% Black).

Sammamish's Asian Population

24,688 residents of Sammamish, or 37.1% of the population, identify as Asian. The share of Asian residents in Sammamish is significantly higher than in Washington overall, where 9.7% of the population is Asian. Sammamish ranks 6th statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, Sammamish's Asian population has grown by an estimated 2.3%. Asian residents' share of Sammamish's population has increased from 35.8% to 37.1%.

Sammamish is more Asian than neighboring Issaquah (26.6% Asian), Union Hill-Novelty Hill (29.1% Asian), and Ames Lake (5.8% Asian). Sammamish is less Asian than neighboring Redmond (40.2% Asian), and Bellevue (42.7% Asian).

Sammamish's Hispanic Population

3,729 residents of Sammamish, or 5.6% of the population, identify as Hispanic. The share of Hispanic residents in Sammamish is lower than in Washington overall, where 14.4% of the population is Hispanic. Sammamish ranks 459th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, Sammamish's Hispanic population has grown by an estimated 3.2%. Hispanic residents' share of Sammamish's population has remained roughly unchanged at 5.6%.

Sammamish is more Hispanic than neighboring Union Hill-Novelty Hill (5.3% Hispanic). Sammamish is less Hispanic than neighboring Issaquah (5.7% Hispanic), Ames Lake (23.9% Hispanic), Redmond (6.7% Hispanic), and Bellevue (7.9% Hispanic).

Sammamish's Native American/Other Population

521 residents of Sammamish, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Sammamish is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Sammamish ranks 576th statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

Since the 2020 Census, Sammamish's Native American/Other population has grown by an estimated 17.3%. Native American/Other residents' share of Sammamish's population has remained roughly unchanged at 0.8%.

Sammamish is less Native American/Other than neighboring Issaquah (1.7% Native American/Other), Union Hill-Novelty Hill (1.1% Native American/Other), Ames Lake (0.9% Native American/Other), Redmond (0.9% Native American/Other), and Bellevue (1.1% Native American/Other).

Sammamish's Multiracial Population

3,923 residents of Sammamish, or 5.9% of the population, identify as Multiracial. The share of Multiracial residents in Sammamish is comparable to the share in Washington overall, where 6.8% of the population is Multiracial. Sammamish ranks 402nd statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, Sammamish's Multiracial population has grown by an estimated 3.4%. Multiracial residents' share of Sammamish's population has remained roughly unchanged at 5.9%.

Sammamish is more Multiracial than neighboring Union Hill-Novelty Hill (5.7% Multiracial), Ames Lake (4.6% Multiracial), Redmond (5.2% Multiracial), and Bellevue (5.8% Multiracial). Sammamish is less Multiracial than neighboring Issaquah (8.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.