Washington State Senate seat · lines in effect since 2024
Washington Legislative District 43
A district of about 164,000 people, 22% Asian, 78% of adults with a bachelor's degree. It votes D+85.2 relative to the nation for president.
Where it sits among all 49 seats
Every Washington State Senate 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
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
Who lives here, compared
Grey bars show the spread of all 49 seats. Small marks are other seats in Washington. The black marker is District 43.
Highest of 49 seats.
Lower than 98% of seats.
Lower than 96% of seats.
Higher than 69% of seats.
Higher than 90% of seats.
Densest of 49 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.
District 4671% college gradsD+81.6Held DDistrict 36
76% college gradsD+83.6Held DDistrict 34
54% college gradsD+71.9Held DDistrict 45
70% college gradsD+46.0Held D
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 2024.
- Jamie Pedersen (D)
2027– · Won 2026 by 48.2
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)