2024 Washington State Senate election
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| 25 of 49 seats in the Washington State Senate 25 seats needed for a majority | ||||||||||||||||||||||||||||||||||
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| Results: Democratic gain Democratic hold Republican hold No election Vote share: 40–50% 50–60% 60–70% 70–80% >90% 50–60% 60–70% >90% | ||||||||||||||||||||||||||||||||||
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| Elections in Washington (state) | 
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The 2024 Washington State Senate elections were held on November 5, 2024, with a nonpartisan blanket primary election held on August 6, 2024. Voters in 25 of the 49 state legislative districts elected Senators to the Washington State Senate. The elections will coincide with other elections for federal, state, and local offices.