1990Final results
1990 election for Illinois Legislative District 5
Illinois State Senate · Illinois
Miguel Delvalle (D) won with 84.0% of the vote, defeating W. R. Willis (R) by 68.0 points.
Miguel DelvalleDemocrat · winner · incumbent
84.0%20,253
W. R. WillisRepublican
16.0%3,852
24,105 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET