Arlington
City in Snohomish County, Washington

Arlington is a city in Snohomish County, Washington, with 19,868 residents (2020 Census). It sits at 115 ft (35 m) above sea level. The nearest town is Sisco Heights, 4.0 miles SE.
- 19,868residents (2020 Census)
- 115 ftelevation · 35 m
- 10.0 sq miland area · 25.8 km²
- 1,993 / sq mipopulation density
- 98271ZIP code
About Arlington
Arlington is a city in northern Snohomish County, Washington, United States, part of the Seattle metropolitan area. The city lies on the Stillaguamish River in the western foothills of the Cascade Range, adjacent to the city of Marysville. It is approximately 10 miles (16 km) north of Everett, the county seat, and 40 miles (64 km) north of Seattle, the state's largest city. As of the 2020 U.S. census, Arlington had a population of 19,868; its estimated population is 21,959 as of 2024.
The city lies in the traditional territory of the Stillaguamish people, an indigenous Coast Salish group. Arlington was established in the 1880s by settlers and the area was platted as two towns, Arlington and Haller City. Haller City was absorbed by the larger Arlington, which was incorporated as a city in 1903. During the Great Depression of the 1930s, the Arlington area was the site of major projects undertaken for employment under the direction of federal relief agencies, including construction of a municipal airport that would serve as a naval air station during World War II. Arlington began suburbanizing in the 1980s, growing by more than 450 percent by 2000 and annexing the unincorporated area of Smokey Point to the southwest.
The economy of the Arlington area historically relied on timber and agriculture. In the early 21st century, it has transitioned to a service economy, with some aviation industry jobs near the municipal airport. The city is governed by a mayor–council government, electing a mayor and seven city councilmembers. The municipal government maintains the city's parks system and water and wastewater utilities. Other services, including public utilities, public transportation, and schools, are contracted to regional or county-level agencies and companies.
Text: Wikipedia · CC BY-SA 4.0
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Living in Arlington
- Median household income
- $88,231
- Median home value
- $538,800
- Median rent
- $1,905/mo
- Median age
- 36.6
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Map of Arlington
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Open in Google Maps ›Arlington, WA population
Arlington had 19,868 residents in the 2020 Census.
| 2020 Census | 19,868 |
|---|---|
| Density | 1,993 per sq mi (769 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Arlington at a glance
| State | Washington (WA) |
|---|---|
| County | Snohomish County |
| Type | City |
| Population | 19,868 (2020) |
| Land area | 9.97 sq mi (25.8 km²) |
| Water area | 0.01 sq mi (0.01 km²) |
| Elevation | 115 ft (35 m) |
| Coordinates | 48.1704° N, 122.1446° W |
| ZIP code | 98271 |
| Official website | arlingtonwa.gov |
| Census code (GEOID) | 5302585 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Arlington
- Sisco Heights4.0 mi SE
- Arlington Heights4.7 mi NE
- Silvana5.1 mi NW
- Bryant5.5 mi N
- Marysville6.2 mi S
- Lake Goodwin6.5 mi W
- Sunday Lake7.0 mi NW
- Lake Cassidy7.8 mi S
- Canyon Creek8.6 mi SE
- Lochsloy9.0 mi SE
- Kayak Point9.3 mi W
- Warm Beach9.4 mi W
Straight-line distance between town centers.
Frequently asked questions about Arlington
What county is Arlington in?
Arlington is in Snohomish County, Washington.
What is the population of Arlington, WA?
19,868 people lived in Arlington at the 2020 Census.
What is the ZIP code of Arlington, WA?
The ZIP code of Arlington is 98271.
What is the elevation of Arlington?
115 feet (35 m) above sea level.
What towns are near Arlington?
Sisco Heights (4.0 mi), Arlington Heights (4.7 mi), Silvana (5.1 mi), Bryant (5.5 mi), Marysville (6.2 mi).
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