1992Final results
1992 election for Illinois Representative District 40
Illinois House of Representatives · Illinois
Peter J. Roskam (R) won with 60.5% of the vote, defeating Pat Cullerton (D) by 21.1 points.
Peter J. RoskamRepublican · winner
60.5%26,719
Pat CullertonDemocrat
39.5%17,409
44,128 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 1992
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET