2026 Illinois Senate election

2026 Illinois Senate elections

November 3, 2026 (2026-11-03)

39 of 59 seats in the Illinois Senate
30 seats needed for a majority
 
Leader Don Harmon John Curran
Party Democratic Republican
Leader's seat 39th district 41st district
Last election 40 19

     Democratic incumbent      Democratic incumbent retiring
     Republican incumbent      Republican incumbent retiring
     No election

Incumbent Senate President

Don Harmon
Democratic



The 2026 Illinois Senate election will be held on November 3, 2026, to elect members of the Illinois Senate from two-thirds of districts.