1978 general · November 7, 1978

1978 Illinois State Senate election results, district by district

Every Illinois State Senate district in the 1978 general election: winners, margins, unopposed seats and seats that changed party.

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Seats after the election

Democrats controlled the chamber · 59 seats

After the electionD 32 · R 27
Races40
Changed party4
Unopposed12%5 races
Incumbents defeated1

Every district

D 20 · R 20

Illinois State Senate

Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Harvard Dataverse / Carl Klarner