24/7 Trauma and Biohazard Cleanup in Arlington, WA

Arlington is a city in northern Snohomish County, Washington, set where the North and South Forks of the Stillaguamish River join, about 10 miles north of Everett in the Seattle metropolitan area.

The city stands in the traditional territory of the Stillaguamish people, whose village of Skabalko — meaning 'confluence' — stood at the forks of the river where downtown Arlington now sits.

Arlington began as two rival towns platted in 1890: Arlington, named for Lord Henry Arlington, a cabinet member of King Charles II of England, and Haller City, founded by G. Morris Haller.

The two towns merged and Arlington was incorporated as a fourth-class city on May 20, 1903, after 134 of 173 voters approved incorporation in a referendum.

Shingle mills, sawmills, and dairy farming powered Arlington's early economy, and the completion of Interstate 5 and State Route 9 in the late 1960s turned it into a bedroom community for Everett and Seattle commuters.

The 2020 census counted 19,868 people in 7,365 households in Arlington, up from 17,926 residents in 2010.

Arlington's city-owned municipal airport opened in 1934, was converted into a U.S. Navy air station in 1943, and was formally returned to city ownership in 1959.

The Arlington Municipal Airport hosts the annual Arlington Fly-In, one of the largest general-aviation gatherings in the Northwest, drawing aircraft from across the United States and Canada.

In 1999 Arlington annexed the Interstate 5 community of Smokey Point after a lengthy court battle with neighboring Marysville.

The Stillaguamish Valley Pioneer Museum in Arlington preserves homesteader and pioneer artifacts from the North and South Forks of the Stillaguamish River valley.