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SeaTac

city

SeaTac is a city in King County, Washington, located approximately midway between Seattle and Tacoma. As an inner-ring suburb of Seattle, it forms part of the Seattle metropolitan area. The city's name is derived from Seattle–Tacoma International Airport (Sea-Tac Airport), which is located entirely within its boundaries. SeaTac had a population of 31,454 in 2020. SeaTac's economy is closely tied to the presence of Sea-Tac International Airport, a major economic driver for the region. The city is home to over 900 licensed businesses, including the headquarters of Alaska Airlines and Horizon Air. Key industries include transportation, warehousing, accommodation, and food services. The city's Department of Community and Economic Development actively promotes economic growth and job creation. SeaTac is distinctive due to its close relationship with the airport, which significantly influences its economy and identity. The city has a diverse population and a growing economy, with ongoing efforts to improve infrastructure and quality of life.

SeaTac, Washington

Overview
Classification
City
Country
United States
County
King
Geography
Region
Seattle Metropolitan Area
Elevation
348 ft
Total Area
10.239 sq mi
Land Area
10.064 sq mi
Water Area
0.175 sq mi
Latitude
47.44444
Longitude
-122.29861
Climate
SeaTac has short, warm, dry, and partly cloudy summers and very cold, wet, and mostly cloudy winters. The temperature typically varies from 37°F to 79°F.
Notable Features
Seattle-Tacoma International Airport · Angle Lake
Neighboring Areas
Burien · Des Moines · Tukwila · Kent
Demographics
Population (2020)
31,454
Est. Population (2026)
35,342
Median Age
36.8
Median Income
$81,104
Poverty Rate
9.32%
Family Households
60.8%
Owner-Occupied
46.5%
Racial & Ethnic Composition
SeaTac has a diverse population. The largest racial/ethnic groups are White (28.74%), Black or African American (24.63%), and Asian (17.39%). 22.8% of the population is Hispanic or Latino.
Governance
Government Type
Council-Manager
Governing Body
City Council
Body Size
7 members
School District
Highline Public Schools
Municipal Services
Police · Fire · Public Works · Parks & Recreation · Community and Economic Development
Economy
Economic Profile
Commercial · Residential · Suburban
Employment Sectors
Transportation & Warehousing · Accommodation & Food Services · Retail Trade
Major Employers
Alaska Airlines · Horizon Air · Seattle-Tacoma International Airport
Education
School Districts
Highline Public Schools · Tukwila School District · Kent School District · Renton School District
Infrastructure
Transportation
Seattle-Tacoma International Airport · Link Light Rail · Sound Transit Express Bus · I-5, SR 99, SR 518
Utilities
Recology (Garbage/Recycling) · Seattle Public Utilities (Water/Sewer) · Puget Sound Energy (Electricity)
Major Facilities
Seattle-Tacoma International Airport · SeaTac Community Center · Valley Ridge Park
Recreation
Outdoor Access
Yes
Major Recreation Areas
Angle Lake Park · North SeaTac Park · Valley Ridge Park
Parks & Trails
Angle Lake Park · North SeaTac Park · Des Moines Creek Trail
History
Founded
1850s
Incorporated
1990
Named After
Seattle-Tacoma International Airport
Historical Significance
SeaTac's history is closely tied to the development of transportation in the region, from the Military Road to the Seattle-Tacoma International Airport. The city's incorporation in 1990 marked a significant step in local governance and community development.
Key Events
Settled by European Americans in the mid-1850s · Construction of Military Road in 1860 · Completion of Seattle-Tacoma International Airport in 1944 · Incorporated as a city on February 28, 1990