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Washington State Senate · 2026 general · 24 of 49 seats up

Democrats keep a majority in the Washington State Senate

Democrats hold 31 seats and Republicans 18; 25 make a majority. 1 seat changed party.

25 for a majorityBefore the electionD 30R 19AfterD 31R 18D +1 · R −1

1 seat flipped to Democrats0 to Republicans

Seats not up in this election count with their holders. Source: Results and race calls: Washington Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

1Seats flipped1 to Democrats, 0 to Republicans
2Incumbents defeatedIn the general election
6Open seatsNo incumbent on the ballot
7Uncontested seats4 Democratic, 3 Republican
1Decided by under 5 pointsCalled and uncalled

Source: Results and race calls: Washington Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Every race, by how close it was

All 18 races by the winner’s margin, D − R. The shaded band holds the 1 race decided by under 5 points. Ringed dots flipped; amber dots are still being counted. The 7 seats won without an opponent sit at the ends.

  • Democratic
  • Republican
  • Counting
  • Flipped
  • Under 5 points
R+80R+60R+40R+20EvenD+20D+40D+60D+80ClosestLD-35 D+0.5

Unofficial returns. Source: Results and race calls: Washington Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Seats that flipped

Districts that elected the other party.

Incumbents who lost

Members defeated in the general election.

Closest called races

Smallest winning margins.

Source: Results and race calls: Washington Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Washington State Senate in other elections

Also on this ballot

Sources