2012Final results
2012 election for Illinois Representative District 42
Illinois House of Representatives · Illinois
Jeanne M. Ives (R) won with 61.6% of the vote, defeating William R. Adams (D) by 23.3 points.
Jeanne M. IvesRepublican · winner
61.6%31,299
William R. AdamsDemocrat
38.4%19,481
50,780 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 2012
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET