2026 Wisconsin Senate election

2026 Wisconsin State Senate election

November 3, 2026

17 of 33 seats in the Wisconsin Senate
17 seats needed for a majority
 
Leader Devin LeMahieu Dianne Hesselbein
Party Republican Democratic
Leader since January 4, 2021 December 1, 2023
Leader's seat 9thOostburg 27thMiddleton
Last election 6 seats, 42.74% 10 seats, 56.60%
Current seats 18 15
Seats needed 2
Seats up 12 5

Map of the incumbents:
     Republican incumbent      Republican incumbent retiring
     Democratic incumbent
     Democratic and Republican incumbent
     No incumbent
     No election

Incumbent President

Mary Felzkowski
Republican



The 2026 Wisconsin Senate election will be held on November 3, 2026. Seventeen of the 33 seats in the Wisconsin Senate are up for election—those in the odd-numbered districts. Republicans currently hold 12 of these 17 seats and have an 18–15 majority in the Senate overall.

This election will be significantly influenced by the legislative maps drawn as a result of the Wisconsin Supreme Court decision in Clarke v. Wisconsin Elections Commission, which declared the previous legislative district map to be unconstitutional on December 22, 2023. The court was in the process of selecting a remedial plan, when the legislature chose to embrace the remedial map proposal from Governor Tony Evers. Evers signed the plan into law on February 19, 2024.

This will be the first state Senate elections held in these seats under the new redistricting plan. Under the new maps, control of the Senate could go to either party due to Democratic gains in the 2024 Wisconsin Senate election.