SeaTac, WA Demographics

A map of SeaTac's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	8,741	9,182	27.0%	29.2%
Black	7,900	7,519	24.4%	23.9%
Hispanic	7,384	6,103	22.8%	19.4%
Asian	5,638	5,741	17.4%	18.3%
Multiracial	2,173	1,561	6.7%	5.0%
Native American/Other	578	1,348	1.8%	4.3%

SeaTac, Washington has an estimated population of 32,414, an increase from the 31,454 recorded in the 2020 Census. The population is 27.0% White, 24.4% Black, 22.8% Hispanic, 17.4% Asian, 6.7% Multiracial, and 1.8% Native American/Other. This demographic dot map shows the population of SeaTac, with one dot drawn for each person counted by the Census, color-coded by race.

SeaTac is about as racially diverse as it was in the 2020 Census. It is considerably 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 SeaTac, that probability was 78.2% in 2020 and 78.1% in the most recent ACS estimates.

SeaTac is ranked the 43rd 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). SeaTac was ranked the 44th most populous place in the 2020 Census.

SeaTac's White Population

8,741 residents of SeaTac, or 27.0% of the population, identify as White. The share of White residents in SeaTac is significantly lower than in Washington overall, where 63.1% of the population is White. SeaTac ranks 598th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, SeaTac's White population has declined by an estimated 4.8%. White residents' share of SeaTac's population has decreased from 29.2% to 27.0%.

SeaTac is more White than neighboring Tukwila (26.1% White). SeaTac is less White than neighboring Normandy Park (78.9% White), Burien (45.7% White), Des Moines (44% White), and Boulevard Park (43% White).

SeaTac's Black Population

7,900 residents of SeaTac, or 24.4% of the population, identify as Black. The share of Black residents in SeaTac is significantly higher than in Washington overall, where 3.8% of the population is Black. SeaTac ranks 2nd statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, SeaTac's Black population has grown by an estimated 5.1%. Black residents' share of SeaTac's population has increased from 23.9% to 24.4%.

SeaTac is more Black than neighboring Tukwila (17.7% Black), Normandy Park (1.2% Black), Burien (7.6% Black), Des Moines (12.7% Black), and Boulevard Park (12% Black).

SeaTac's Asian Population

5,638 residents of SeaTac, or 17.4% of the population, identify as Asian. The share of Asian residents in SeaTac is higher than in Washington overall, where 9.7% of the population is Asian. SeaTac ranks 29th statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, SeaTac's Asian population has declined by an estimated 1.8%. Asian residents' share of SeaTac's population has decreased from 18.3% to 17.4%.

SeaTac is more Asian than neighboring Normandy Park (5% Asian), Burien (15.3% Asian), Des Moines (12% Asian), and Boulevard Park (8.6% Asian). SeaTac is less Asian than neighboring Tukwila (23.5% Asian).

SeaTac's Hispanic Population

7,384 residents of SeaTac, or 22.8% of the population, identify as Hispanic. The share of Hispanic residents in SeaTac is higher than in Washington overall, where 14.4% of the population is Hispanic. SeaTac ranks 94th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, SeaTac's Hispanic population has grown by an estimated 21.0%. Hispanic residents' share of SeaTac's population has increased from 19.4% to 22.8%.

SeaTac is more Hispanic than neighboring Normandy Park (4.1% Hispanic), and Des Moines (19.8% Hispanic). SeaTac is less Hispanic than neighboring Tukwila (24% Hispanic), Burien (24.2% Hispanic), and Boulevard Park (30.5% Hispanic).

SeaTac's Native American/Other Population

578 residents of SeaTac, or 1.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in SeaTac is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. SeaTac ranks 80th statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

Since the 2020 Census, SeaTac's Native American/Other population has declined by an estimated 57.1%. Native American/Other residents' share of SeaTac's population has decreased from 4.3% to 1.8%.

SeaTac is more Native American/Other than neighboring Normandy Park (0% Native American/Other), and Burien (1.7% Native American/Other). SeaTac is less Native American/Other than neighboring Tukwila (4.9% Native American/Other), Des Moines (2.3% Native American/Other), and Boulevard Park (2.3% Native American/Other).

SeaTac's Multiracial Population

2,173 residents of SeaTac, or 6.7% of the population, identify as Multiracial. The share of Multiracial residents in SeaTac is comparable to the share in Washington overall, where 6.8% of the population is Multiracial. SeaTac ranks 465th statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, SeaTac's Multiracial population has grown by an estimated 39.2%. Multiracial residents' share of SeaTac's population has increased from 5.0% to 6.7%.

SeaTac is more Multiracial than neighboring Tukwila (3.8% Multiracial), Burien (5.5% Multiracial), and Boulevard Park (3.7% Multiracial). SeaTac is less Multiracial than neighboring Normandy Park (10.7% Multiracial), and Des Moines (9.2% 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.