2016 Illinois Senate election

2016 Illinois Senate elections

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40 of 59 seats in the Illinois Senate
30 seats needed for a majority
  Majority party Minority party
 
Leader John Cullerton Christine Radogno
Party Democratic Republican
Leader's seat 6th-Chicago 41st-La Grange
Last election 39 20
Seats won 37 22
Seat change Decrease2 Increase2
Popular vote 1,906,007 1,299,861
Percentage 59.45% 40.55%
Swing Increase13.90% Decrease13.90%

Results:
     Republican gain
     Democratic hold      Republican hold
     No election
Vote Share:
     50–60%      60–70%      >90%
     50–60%      60–70%      >90%

President before election

John Cullerton
Democratic

President-Elect

John Cullerton
Democratic

The Illinois State Senate Election of 2016 determined, along with 19 senators not up for re-election, the membership of the 100th Illinois State Senate. The Democratic Party retained its majority, losing two seats - the 47th district in Western Illinois, and the 59th in the State's South - which were both won by Republicans.