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All 35 seats in the Idaho Senate 18 seats needed for a majority | |||||||||||||||||||||||||||||||
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 Results: Republican hold Democratic hold | |||||||||||||||||||||||||||||||
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| Elections in Idaho |
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The 2020 Idaho Senate election took place as part of the biennial 2020 United States elections. Idaho voters elected state senators in all of the state's 35 senate districts. State senators serve two-year terms in the Idaho Senate.
No seats changed hands in the election, with the closest, the Moscow-based District 5, being within one percentage point of flipping.