Arlington

Population

21,068 (2020)

Type

City

Area

9.81 sq mi (25.42 km²), 0.01 sq mi water

Median age

39.2

Households

14,912

Persons per household

2.7

Median household income

$85,641

Average house value

$335,400

Businesses

1,079

Employees

12,781

Government

CITY OF ARLINGTON

Government office

18204 59TH DR, ARLINGTON, WA 98223