House districts / Washington


Washington's 1st congressional district

WA-1. Same lines in 2026 as in 2022.

Suzan K. DelBene
Current member
Suzan K. DelBene
Democrat. In office since 2012.
2026 lines

Fundraising

2 other 2026 candidates filed reports (primary candidates). 2 other candidates have not filed.

Federal Election Commission, candidate totals, public domain.

President in this district

PollCheck calculation from precinct returns on the 2026 lines (method).

YearDemocratRepublicanOtherMargin
2024Harris 63.3%Trump 32.7%4.1%D+30.6
2020Biden 63.5%Trump 33.1%3.4%D+30.4
2016Clinton 58.9%Trump 33.1%8.0%D+25.8

Who lives here

MeasureThis districtUS
People
Population
783,828
Adults (18+)
613,577
Citizens, % of adults
83.2%
92.1%
Age, % of adults
18 to 29
18.4%
20.3%
30 to 44
33.2%
25.9%
45 to 64
31.3%
31.8%
65 and over
17.1%
22.0%
Race and Hispanic origin, % of residents
White
58.0%
57.4%
Black
2.5%
11.9%
Hispanic
10.1%
19.3%
Asian
21.5%
5.9%
Other or more than one
7.9%
5.5%
Education and income
Bachelor's degree or higher, % of 25+
53.0%
35.7%
Median household income
$134,799
$80,734

American Community Survey 2020-2024 5-year estimates for this district. The tick marks the US figure.

Winning margin

Results since 1976

YearWinnerShare Runner-upShareMargin
Current lines (2022 on) post-census redistricting
2024Suzan K. DelBene Democrat63.0%Jeb Brewer Republican others 0.2%36.8%D+26.2
2022Suzan K. DelBene Democrat63.5%Vincent J. Caveleri Republican others 0.1%36.4%D+27.1
Earlier lines, elections 2012-2020 seat count changed from 9 to 10 after the census
2020Suzan K. DelBene Democrat58.5%Jeffrey Beeler, Sr. Republican others 0.1%41.3%D+17.2
2018Suzan K. DelBene Democrat59.3%Jeffrey Beeler Republican40.7%D+18.5
2016Suzan K. DelBene Democrat55.4%Robert J. Sutherland Republican44.6%D+10.8
2014Suzan K. DelBene Democrat55.0%Pedro Celis Republican45.0%D+10.1
2012Suzan DelBene Democrat53.9%John Koster Republican46.1%D+7.9
Earlier lines, elections 2002-2010 post-census redistricting
2010Jay Inslee Democrat57.7%James Watkins Republican42.3%D+15.3
2008Jay Inslee Democrat67.8%Larry Ishmael Republican32.2%D+35.5
2006Jay Inslee Democrat67.7%Larry W. Ishmael Republican32.3%D+35.4
2004Jay Inslee Democrat62.3%Randy Eastwood Republican others 1.8%36.0%D+26.3
2002Jay Inslee Democrat55.6%Joe Marine Republican others 3.0%41.3%D+14.3
Earlier lines, elections 1992-2000 seat count changed from 8 to 9 after the census
2000Jay Inslee Democrat54.5%Dan McDonald Republican others 2.8%42.6%D+11.9
1998Jay Inslee Democrat49.8%Rick White Republican others 6.1%44.1%D+5.7
1996Rick White Republican53.7%Jeff Coopersmith Democrat46.3%R+7.5
1994Rick White Republican51.7%Maria Cantwell Democrat48.3%R+3.3
1992Maria Cantwell Democrat54.9%Gary Nelson Republican others 3.1%42.0%D+12.9
Earlier lines, elections 1982-1990 seat count changed from 7 to 8 after the census
1990John Miller Republican52.0%Cynthia Sullivan Democrat48.0%R+4.1
1988John Miller Republican55.4%Reese Lindquist Democrat44.6%R+10.8
1986John Miller Republican51.4%Reese M. Lindquist Democrat48.6%R+2.8
1984John Miller Republican56.3%Brock Evans Democrat43.7%R+12.5
1982Joel Pritchard Republican67.6%Brian Long Democrat32.4%R+35.2
Earlier lines, elections 1976-1980
1980Joel Pritchard Republican78.3%Robin Drake Democrat others 3.6%18.1%R+60.1
1978Joel Pritchard Republican64.0%Janice Niemi Democrat others 2.3%33.7%R+30.2
1976Joel Pritchard Republican71.8%Dave Wood Democrat others 2.3%25.8%R+46.0

More on Washington

Other Washington districts

About these results

Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.

President in this district: 2016 and 2020 are estimates: precinct votes are split between districts by census block.

Counties only partly inside the district show the 2024 result for that part; estimates are labelled.

Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.

Sources

Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).

Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).

District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.

Members: unitedstates/congress-legislators (CC0).

Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.

Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024 (public domain).

2028 candidates: Federal Election Commission (public domain).

Photos: official portraits, public domain (US government); see Photo credits.

PollCheck US. Data through November 5, 2026. Photo credits