United States House of Representatives elections, 1990 Illinois Illinois

| District | Incumbent | Party | Elected | Status_ | Opponent |
|---|---|---|---|---|---|
| Illinois1 | Charles Hayes | Democratic | 1983 | Re-elected | Charles Hayes (D) 93.8% Babette Peyton (R) 6.2% |
| Illinois2 | Gus Savage | Democratic | 1980 | Re-elected | Gus Savage (D) 78.2% William T. Hespel (R) 21.8% |
| Illinois3 | Marty Russo | Democratic | 1974 | Re-elected | Marty Russo (D) 70.9% Carl L. Klein (R) 29.1% |
| Illinois6 | Henry Hyde | Republican | 1974 | Re-elected | Henry Hyde (R) 66.7% Robert J. Cassidy (D) 33.3% |
| Illinois7 | Cardiss Collins | Democratic | 1973 | Re-elected | Cardiss Collins (D) 79.9% Michael Dooley (R) 20.1% |
| Illinois9 | Sidney R. Yates | Democratic | 1964 | Re-elected | Sidney R. Yates (D) 71.2% Herb Sohn (R) 28.8% |