1984Final results
1984 election for Illinois Representative District 90
Illinois House of Representatives · Illinois
Sam Vinson (R) won with 61.7% of the vote, defeating Joseph Dilillo (D) by 23.5 points.
Sam VinsonRepublican · winner · incumbent
61.7%25,629
Joseph DililloDemocrat
38.3%15,884
41,513 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 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET