A special election in the U.S. state of Washington is scheduled to be held on November 4, 2025, with a nonpartisan blanket primary election being held on August 5, 2025. The election will fill vacancies created after the 2024 general election. Voters in 5 of the 49 state legislative districts will elect senators to the Washington State Senate.

Summary District Counties Incumbent Interim Elected Notes 2024 pres. margin Candidates 5th King Bill Ramos (D) Victoria Hunt (D) TBD Incumbent died on April 19, 2025.https://mynorthwest.com/mynorthwest-politics/state-senator-bill-ramos-died/4078016Interim senator appointed June 3, 2025. 26th KitsapPierce Emily Randall (D) Deborah Krishnadasan (D) TBD Incumbent resigned December 8, 2024, to become a U.S. representative.Interim senator appointed December 11, 2024. 33rd King Karen Keiser (D) Tina Orwall (D) TBD Incumbent resigned December 10, 2024.Interim senator appointed December 10, 2024. 34th King Joe Nguyen (D) Emily Alvarado (D) TBD Incumbent resigned January 15, 2025, to lead the Washington State Department of Commerce.Interim senator appointed January 21, 2025. 48th King Patty Kuderer (D) Vandana Slatter (D) TBD Incumbent resigned January 7, 2025, after being elected as Washington State Insurance Commissioner.Interim senator appointed January 7, 2025.

By district District 5 Primary

General

District 26 Primary

General

District 33 Primary

General

District 34 Primary

General

District 48 Primary

General

References