Washington's 1st congressional district

Washington's 1st congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Suzan DelBene D–Medina
Population (2024)	810,553
Median household income	$131,159[1]
Ethnicity	59.7% White 19.7% Asian 9.8% Hispanic 6.6% Two or more races 2.6% Black 1.5% other
Cook PVI	D+15[2]

Washington's 1st congressional district is made up of parts of King and Snohomish counties. The district covers several cities in the north of the Seattle metropolitan area, east of Interstate 5, including parts of Bellevue, Marysville, and up north toward Arlington.