2012Final results
2012 election for Illinois's 18th District
U.S. House · Illinois
Aaron Schock (R) won with 74.2% of the vote, defeating Steve Waterworth (D) by 48.3 points.
Aaron SchockRepublican · winner
74.2%244,467
Steve WaterworthDemocrat
25.8%85,164
329,631 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2012
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
No DemocratAaron Schock
—
Raised by the campaign
$3.2M
—
Spent by the campaign
$2.2M
—
Cash on hand
$2.1M
Campaign money: FEC, through Dec 31, 2012.
Source: FEC campaign filingsUpdated Dec 31, 2012