United States House of Representatives elections, 2012 Illinois Illinois

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Illinois 11 | Judy Biggert Redistricted from the 13th district | Republican | 1998 | Lost re-election Democratic gain | Bill Foster (D) 58.1% Judy Biggert (R) 41.9% |
| Illinois 14 | Randy Hultgren | Republican | 2010 | Re-elected | Randy Hultgren (R) 58.8% Dennis Anderson (D) 41.2% |
| Illinois 15 | John Shimkus Redistricted from the 19th district | Republican | 1996 | Re-elected | John Shimkus (R) 68.9% Angela Michael (D) 31.1% |
| Illinois 16 | Don Manzullo | Republican | 1992 | Lost renomination Republican loss | Adam Kinzinger (R) 61.9% Wanda Rohl (D) 38.1% |
| Illinois 16 | Adam Kinzinger Redistricted from the 11th district | Republican | 2010 | Re-elected | Adam Kinzinger (R) 61.9% Wanda Rohl (D) 38.1% |
| Illinois 17 | Bobby Schilling | Republican | 2010 | Lost re-election Democratic gain | Cheri Bustos (D) 53.3% Bobby Schilling (R) 46.7% |