The T-shaped district is mostly north of the borders of King and Snohomish counties, stretching from High Bridge Road and Broadway Avenue in the east through the entirety of the cities of Bothell and Brier to I-5 in Mountlake Terrace in the west, though the district sweeps south of Bothell to part of Kirkland and reaches to Lake Washington.
[1] The district's legislators are state senator Derek Stanford and state representatives Davina Duerr (position 1) and Shelley Kloba (position 2), all Democrats.
[2] Patty Murray, Washington's current senior U.S.
Following the 2010 United States Census, the Washington Redistricting Commission was tasked with re-drawing Washington's 49 legislative districts and 10 congressional districts.
Before redistricting, Washington's 1st legislative district had a greater portion of unincorporated Snohomish County, particularly in the area west of Mill Creek, and none of the city of Kirkland within its borders.