 At the federal level, Arlington is part of Washington's 2nd congressional district, which has been represented by Democrat Rick Larsen since 2001.At the state level, the city is part of the 39th legislative district, represented by senator Kirk Pearson, and representatives Dan Kristiansen and Carolyn Eslick.Arlington is wholly part of the Snohomish County Council's 1st district, represented by Nate Nehring, son of Marysville mayor Jon Nehring, since his appointment in 2017.