Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

SeaTac, WA Population, Income & Demographics 2026

CSASeattle-Tacoma MSASeattle-Tacoma-Bellevue#24/78 Population

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

32,414

Median Agei

36.8

Race & Ethnicityi

White

27%8,741

Black

24.4%7,900

Hispanic/Latino

22.8%7,384

Asian

17.4%5,638

Two or More

6.7%2,173

Native Hawaiian/Pacific Islander

1.3%420

American Indian/Alaska Native

0.3%88

Other

0.2%70

Educational Attainment (Age 25+)i

GED/Alternative

3.7%839

High School Diploma

24.4%5,548

Some College (<1 yr)

7.3%1,674

Some College (1+ yr)

13.7%3,113

Associate's Degree

8.5%1,942

Bachelor's Degree

19.7%4,488

Master's Degree

5.9%1,343

Professional Degree

0.4%85

Doctorate

0.4%91

HS or Higher

83.9%

BA or Higher

26.4%

Graduate+

6.7%

Housingi

Median Home Valuei

$519,700

Median Renti

$1,660

Tenure

Owner-Occupied

46.5%5,642

Renter-Occupied

53.5%6,492

Total Units

12,886

Homeownership

46.5%

Vacancy Rate

5.8%

Home Values

Under $50K

4.4%249

$50K–$100K

2.8%158

$100K–$150K

1.7%97

$150K–$200K

0.4%20

$200K–$300K

5.9%333

$300K–$500K

31.9%1,799

$500K–$1M

47.4%2,672

$1M+

5.6%314

Rent Distribution

Under $500

183

$500–$750

172

$750–$1,000

372

$1,000–$1,250

587

$1,250–$1,500

1,181

$1,500–$2,000

2,272

$2,000+

1,678

Year Built

2020 or later

2.5%326

2010–2019

8.9%1,149

2000–2009

7.8%1,009

1990–1999

5.2%676

1980–1989

12.8%1,645

1970–1979

15.5%2,002

1960–1969

21.9%2,816

1950–1959

14.6%1,875

1940–1949

6.2%793

1939 or earlier

4.6%595

Heating Fuel

Electricity

65.8%7,989

Utility Gas

27.8%3,372

Fuel Oil

4.2%505

Bottled/LP Gas

1.3%161

Wood

0.8%101

Solar

0%6

Economyi

Median Household Incomei

$81,104

Mean Household Incomei

$98,134

Per Capita Incomei

$38,330

Poverty Ratei

9.1%

Unemploymenti

Labor Forcei

17,768

Household Income Distribution

Under $10K

3.3%399

$10K–$15K

2.9%351

$15K–$20K

1.8%214

$20K–$25K

3.2%392

$25K–$30K

1.4%174

$30K–$35K

3.9%469

$35K–$40K

5.9%719

$40K–$45K

2.8%336

$45K–$50K

6.3%767

$50K–$60K

6.4%779

$60K–$75K

9%1,096

$75K–$100K

12.5%1,516

$100K–$125K

13.2%1,598

$125K–$150K

11%1,340

$150K–$200K

8.3%1,002

$200K+

8.1%982

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Foreign-Born Populationi

Foreign-Borni

12,93739.9%

By Region

Top Countries

Mexico

1,882

Philippines

716

India

529

Guatemala

391

Korea

320

China

262

Canada

128

Poland

Commute & Transportationi

Workersi

15,885

Avg. Commutei

25.4 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

16,533

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

1,240(4.9% of civilian adults)

Health Insurancei

88.4%Insured

11.6%Uninsured