1992Final results
1992 election for Illinois Legislative District 18
Illinois State Senate · Illinois
Patrick J. Omalley (R) won with 58.0% of the vote, defeating John J. McNamara (D) by 16.0 points.
Patrick J. OmalleyRepublican · winner
58.0%50,303
John J. McNamaraDemocrat
42.0%36,391
86,694 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