1980Final results
1980 election for Illinois Legislative District 18
Illinois State Senate · Illinois
Philip J. Rock (D) won with 69.9% of the vote, defeating Robert Bova (R) by 39.8 points.
Philip J. RockDemocrat · winner · incumbent
69.9%45,527
Robert BovaRepublican
30.1%19,598
65,125 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 1980
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET