Washington's 1st Congressional District

Washington's 1st Congressional District is represented by Suzan DelBene (Democrat), who has held the seat since 2012. DelBene has an overall VoteSee report card grade of C, voted in 98% of roll-call votes on bills this Congress, and votes with the Democratic majority 97% of the time. The district includes Kirkland, Redmond, and Marysville. It takes in all or part of 2 counties, and 60% of residents live in Snohomish County. About 784,000 people live in the district, and the median household income is $134,799.

Current Representative

Suzan DelBene (Democrat) has represented Washington's 1st Congressional District since 2012.

VoteSee report card grade: C
Attendance in the 119th Congress: 98% of roll-call votes on bills
Votes with the Democrat majority: 97%

See Suzan DelBene's full voting record and issue positions →

2026 Election

U.S. House: Washington 1st District

Winner: Suzan DelBene.

Incumbent Suzan DelBene is running for re-election. 2 candidates were on the Nov 3, 2026 ballot.

Washington uses a top-two primary, so the two November candidates can be from the same party.

Suzan DelBene (Democratic), incumbent: raised $4.3M, $1.0M cash on hand; VoteSee report card C; 98% attendance; votes with the Democratic majority 97% of the time
Mary Silva (Republican): raised $8K, $1K cash on hand

Polls: No public polls

See the full 2026 race →

District Demographics

Population: 783,828
Median household income: $134,799
Median age: 38
Median home value: $834,300
Bachelor's degree or higher: 53%

Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.

How DelBene Voted Recently

Yea on American Enrichment Deployment Act (Nov 9, 2026) — Passed
Yea on Nuclear REFUEL (Recycling Efficient Fuels Utilizing Expedited Licensing) Act (Nov 9, 2026) — Passed
Yea on Retire through Ownership Act (Sep 16, 2026) — Passed
Yea on Water Resources Development Act of 2026 (Sep 16, 2026) — Passed
Yea on Ratepayer Protection Act (Sep 16, 2026) — Passed

Breaks with the Democrat majority

No on National Security, Department of State, and Related Programs Appropriations Act, 2027 (Jul 15, 2026) — Failed
Yea on Cashless Bail Reporting Act (May 14, 2026) — Passed
Aye on Farm, Food, and National Security Act of 2026 (Apr 30, 2026) — Failed

Who Held This Seat Before

Members of Congress who previously represented Washington's 1st Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.

Jay Inslee — Democrat (1999–2012)
Rick White — Republican (1995–1999)
Maria Cantwell — Democrat (1993–1995)
John Miller — Republican (1985–1993)
Joel Pritchard — Republican (1973–1985)
Thomas Pelly — Republican (1953–1973)
Hugh Mitchell — Democrat (1949–1953)
Homer Jones — Republican (1947–1949)
Emerson De Lacy — Democrat (1945–1947)
Warren Magnuson — Democrat (1937–1944)
Marion Zioncheck — Democrat (1933–1937)
Ralph Horr — Republican (1931–1933)

Where the District Is

Washington's 1st Congressional District covers 332 square miles of land. Boundaries are for the current (119th) Congress.

Counties

Snohomish County (part): 60% of residents
King County (part): 40% of residents

Largest communities

Kirkland
Redmond (part)
Marysville (part)
Bellevue (part)
Bothell
Lake Stevens
Mill Creek East
Eastmont