The 2020 Idaho Senate election is taking place as part of the biennial2020 United States elections. Idaho voters will elect state senators in all of the state's 35 senate districts. State senators serve two-year terms in the Idaho Senate.
Retirements
Six incumbents did not run for re-election in 2020. Those incumbents are:
^"2020 State Legislative Rankings". CNalysis. Retrieved November 1, 2020. Tilt D / Flip: R TO D / GOP Supermajority Odds: 0% / GOP Majority Odds: 37.5% / Tie Odds: 5.8% / DEM Majority Odds: 56.7% / DEM Supermajority Odds: 0%