2002Final results
2002 election for Illinois's 12th District
U.S. House · Illinois
Jerry F. Costello (D) won with 69.2% of the vote, defeating David Sadler (R) by 38.5 points.
Jerry F. CostelloDemocrat · winner
69.2%131,580
David SadlerRepublican
30.8%58,440
190,020 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 2002
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.
Jerry F. CostelloNo Republican
$779.7K
Raised by the campaign
—
$466.2K
Spent by the campaign
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$720.1K
Cash on hand
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Campaign money: FEC, through Dec 31, 2002.
Source: FEC campaign filingsUpdated Dec 31, 2002