House districts / Washington
Washington's 10th congressional district
WA-10. Same lines in 2026 as in 2022.
Fundraising
- Marilyn Strickland Das of Oct 14, 2026Raised $1.9mSpent $1.9m · Cash $609k
2 other 2026 candidates filed reports (primary candidates). 1 other candidate has not filed.
Federal Election Commission, candidate totals, public domain.
President in this district
PollCheck calculation from precinct returns on the 2026 lines (method).
| Year | Democrat | Republican | Other | Margin |
|---|---|---|---|---|
| 2024 | Harris 57.0% | Trump 39.1% | 3.8% | D+17.9 |
| 2020 | Biden 56.9% | Trump 39.3% | 3.8% | D+17.6 |
| 2016 | Clinton 52.2% | Trump 39.1% | 8.8% | D+13.1 |
Who lives here
| Measure | This district | US |
|---|---|---|
| People | ||
| Population | 777,317 | |
| Adults (18+) | 601,358 | |
| Citizens, % of adults | 94.2% | 92.1% |
| Age, % of adults | ||
| 18 to 29 | 21.6% | 20.3% |
| 30 to 44 | 28.8% | 25.9% |
| 45 to 64 | 29.6% | 31.8% |
| 65 and over | 20.0% | 22.0% |
| Race and Hispanic origin, % of residents | ||
| White | 59.3% | 57.4% |
| Black | 7.0% | 11.9% |
| Hispanic | 13.6% | 19.3% |
| Asian | 7.5% | 5.9% |
| Other or more than one | 12.6% | 5.5% |
| Education and income | ||
| Bachelor's degree or higher, % of 25+ | 32.1% | 35.7% |
| Median household income | $94,427 | $80,734 |
American Community Survey 2020-2024 5-year estimates for this district. The tick marks the US figure.
Winning margin
Results since 1976
| Year | Winner | Share | Runner-up | Share | Margin |
|---|---|---|---|---|---|
| Current lines (2022 on) post-census redistricting | |||||
| 2024 | Marilyn Strickland Democrat | 58.5% | Don Hewett Republican others 0.2% | 41.2% | D+17.3 |
| 2022 | Marilyn Strickland Democrat | 57.0% | Keith R. Swank Republican others 0.2% | 42.9% | D+14.1 |
| Earlier lines, elections 2012-2020 seat count changed from 9 to 10 after the census | |||||
| 2020 | Marilyn Strickland Democrat | 49.3% | Beth Doglio Democrat others 15.1% | 35.6% | D+13.8 |
| 2018 | Denny Heck Democrat | 61.5% | Joseph Brumbles Republican | 38.5% | D+23.1 |
| 2016 | Denny Heck Democrat | 58.7% | Jim Postma Republican | 41.3% | D+17.3 |
| 2014 | Denny Heck Democrat | 54.7% | Joyce McDonald Republican | 45.3% | D+9.4 |
| 2012 | Denny Heck Democrat | 58.6% | Richard "Dick" Muri Republican | 41.4% | D+17.1 |
| WA-10 did not exist before 2012: Washington had 7 districts in 1976-1980, 8 in 1982-1990 and 9 in 1992-2010. | |||||
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