U.S. House seat · lines in effect since 2022
Washington's 4th District
A district of about 777,000 people, 41% Hispanic, 24% of adults with a bachelor's degree. It votes R+20.0 relative to the nation for president.
Source: 2026 results: Washington Secretary of State and civicAPI; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET
Where it sits among all 435 seats
Every U.S. House seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Labels below the bar mark 9 other seats in Washington.
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2020 | 2022 | 2024 | 2026 | |
|---|---|---|---|---|
| U.S. Senate | No race | No race | R+14.0 | No race |
| Governor | R+25.4 | No race | R+22.6 | No race |
| U.S. House | No race | R+35.2 | No race | R+8.9 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Washington Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 435 seats. Small marks are other seats in Washington. The black marker is WA-4.
Lower than 88% of seats.
Higher than 57% of seats.
Higher than 88% of seats.
Lower than 96% of seats.
Lower than 80% of seats.
Less dense than 90% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
TX-2745% Hispanic · 28% college gradsR+20.7Held RCA-5
31% Hispanic · 29% college gradsR+19.4Held RAZ-9
31% Hispanic · 23% college gradsR+30.1Held RCA-23
46% Hispanic · 20% college gradsR+17.9Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2022.
- Amanda McKinney (R)
2027– · Won 2026 by 8.9 - Dan Newhouse (R)
2023–2027 · Won 2022 by 35.2, 2024 by 5.9
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)