The 2026 Idaho Senate election will be held on November 3, 2026, alongside the Idaho House of Representatives election and the other 2026 United States elections. Voters will elect members of the Idaho State Senate in all 35 of the U.S. state of Idaho's legislative districts to serve a two-year term.
Retirements Democrats District 16: Alison Rabe is retiring.
Incumbents defeated In primary elections Republicans District 1: Jim Woodward lost renomination to Scott Herndon. District 24: Glenneda Zuiderveld lost renomination to Bret Reinke. District 25: Josh Kohl lost renomination to Casey Swensen.
Predictions SourceRankingAs of Sabato's Crystal Ball January 22, 2026
Results summary + Summary of the November 8, 2026 Idaho Senate election results Party Candidates Votes Seats % Before Up Won After +/– Republican 34 % 29 29 Democratic 33 % 6 6 Independent 3 % 0 0 Constitution 2 % 0 0 Total 100.00% 35 35 Source: [ Idaho Elections Results]
Summary of results by district District Incumbent Party Elected Senator Outcome 1st Rep TBD 2nd Rep TBD 3rd Rep TBD 4th Rep TBD 5th Rep TBD 6th Rep TBD 7th Rep TBD 8th Rep TBD 9th Rep TBD 10th Rep TBD 11th Rep TBD 12th Rep TBD 13th Rep TBD 14th Rep TBD 15th Rep TBD 16th Dem TBD 17th Dem TBD 18th Dem Dem 19th Dem TBD 20th Rep TBD 21st Rep TBD 22nd Rep TBD 23rd Rep TBD 24th Rep TBD 25th Rep TBD 26th Dem TBD 27th Rep TBD 28th Rep TBD 29th Dem TBD 30th Rep TBD 31st Rep TBD 32nd Rep TBD 33rd Rep TBD 34th Rep TBD 35th Rep TBD
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