Washington State Senate seat · lines in effect since 2024
Washington Legislative District 30
A district of about 164,000 people, 21% Hispanic, 28% of adults with a bachelor's degree. It votes D+21.3 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
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 | 2026 | |
|---|---|---|
| Governor | D+14.5 | No race |
| Washington State Senate | No race | D+27.9 |
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 49 seats. Small marks are other seats in Washington. The black marker is District 30.
Lower than 75% of seats.
Lower than 75% of seats.
Higher than 88% of seats.
Higher than 96% of seats.
Higher than 71% of seats.
Denser than 81% 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.
District 2920% college gradsD+22.2Held DDistrict 33
23% Hispanic · 30% college gradsD+38.8Held DDistrict 47
31% college gradsD+16.7Held DDistrict 28
33% college gradsD+21.6Not up in 2026
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.
- Claire Wilson (D)
2027– · Won 2026 by 27.9
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)