99chambers

U.S. House seat · former district

Illinois's 18th District

24 elections since 1976: Democrats won 0, Republicans 24.

2020 election

Nov 3, 2020
  1. Darin LaHood (R) · won70.4%
  2. George Petrilli (D)29.6%

Full results →

Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET

Every election for this seat

24 races since 1976. District numbers are redrawn after each census: each group is one set of lines.

YearWinnerRunner-upWon by
Lines first used in 2012
2020Darin LaHood (R)George Petrilli (D)40.8
2018Darin LaHood (R)Junius Rodriguez (D)34.5
2016Darin LaHood (R)Junius Rodriguez (D)44.2
2015 special electionDarin LaHood (R)Rob Mellon (D)37.7
2014Aaron Schock (R)Darrel Miller (D)49.4
2012Aaron Schock (R)Steve Waterworth (D)48.3
Lines first used in 2002
2010Aaron Schock (R)Deirdre "d K" Hirner (D)43.3
2008Aaron Schock (R)Colleen Callahan (D)20.9
2006Ray LaHood (R)Steve Waterworth (D)34.6
2004Ray LaHood (R)Steve Waterworth (D)40.5
2002Ray LaHood (R)—Unopposed
Lines first used in 1992
2000Ray LaHood (R)Joyce Harant (D)34.1
1998Ray LaHood (R)—Unopposed
1996Ray LaHood (R)Mike Curran (D)18.5
1994Ray LaHood (R)G. Douglas Stephens (D)20.8
1992Robert Michel (R)Ronald C. Hawkins (D)15.5
Lines first used in 1982
1990Robert Michel (R)—Unopposed
1988Robert Michel (R)G. Douglas Stephens (D)9.4
1986Robert Michel (R)Jim Dawson (D)25.2
1984Robert Michel (R)Gerald A. Bradley (D)22.1
1982Robert Michel (R)G. Douglas Stephens (D)3.2
Lines first used in 1972
1980Robert Michel (R)John L. Knuppel (D)24.3
1978Robert Michel (R)Virgil R. Grunkmeyer (D)31.8
1976Robert Michel (R)Matthew Ryan (D)15.5

Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)