1978Flipped from DemocraticFinal results
1978 election for Illinois Legislative District 31
Illinois State Senate · Illinois
Adeline Jay Geokaris (R) won with 60.4% of the vote, defeating Lary Leonard (D) by 20.8 points, a seat Democrats won last time.
Adeline Jay GeokarisRepublican · winner
60.4%23,875
Lary LeonardDemocrat
39.6%15,637
39,514 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET