Washington's 1st Congressional District
Washington · WA-01
Washington's 1st Congressional District is one of 10 U.S. House districts in Washington, represented in Congress by Suzan DelBene (Democrat). It is home to roughly 779,239 people, with a median age of 37.5. The population is about 60% White. The median household income is $132,185, and 51% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted solidly Democratic (D+29).
Representative
Current U.S. House member (source: house.gov).
Geography
WA-01 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 348 square miles, WA-01 is the 336th-largest of the 435 congressional districts by land area. With about 2,239 residents per square mile, it is a largely suburban district. Its shape is irregular: the district's Polsby-Popper score of 0.20 ranks 317th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 63% of WA-01 voters backed Kamala Harris and 34% Donald Trump — a D+29 margin. That is a 2.0-point shift toward the Republicans from 2020, when the district voted D+31.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 37.5 years old; 22.2% of residents are under 18 and 13.2% are 65 or older. About 24.9% of residents were born outside the United States, and 29.7% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $132,185, the district's median household income ranks 16th of 435 districts nationwide. The typical owner-occupied home is worth $768,339, and the median rent is $2,231 a month. 6.1% of residents live below the poverty line, and workers average a 31.3-minute commute (24.8% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).