Multiple elections occurred on November 4, 2025, with primary elections held on August 5, 2025.
9 of the 147 state legislative seats were up for special election in 2025 as a result of deaths and resignations among members, 5 in the Senate and 4 in the House. All nine elections are in the Seattle area.
Two special elections to the Washington Court of Appeals took place in November 2025. No more than two candidates filed in either race, so primary elections were cancelled.
Municipal elections in Washington are nonpartisan, while county elections are partisan.
The municipality of Seattle has 499,210 active voters as of May 1, 2025.
The incumbent mayor of Seattle is Democrat Bruce Harrell. He ran for re-election to a second term.
The incumbent Seattle City Attorney is Republican Ann Davison. She ran for re-election to a second term.
King County, Washington has 1,428,492 active voters as of May 1, 2025.
A special ballot measure election was held on April 22. The amendment was successful.