United States House of Representatives elections, 1984 Illinois Illinois

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Illinois 2 | Gus Savage | Democratic | 1980 | Re-elected | Gus Savage (D) 83.0% Dale F. Harman (R) 17.0% |
| Illinois 3 | Marty Russo | Democratic | 1974 | Re-elected | Marty Russo (D) 64.4% Richard D. Murphy (R) 35.6% |
| Illinois 6 | Henry Hyde | Republican | 1974 | Re-elected | Henry Hyde (R) 75.1% Robert H. Renshaw (D) 24.9% |
| Illinois 7 | Cardiss Collins | Democratic | 1973 | Re-elected | Cardiss Collins (D) 78.4% James L. Bevel (R) 21.6% |
| Illinois 9 | Sidney R. Yates | Democratic | 1964 | Re-elected | Sidney R. Yates (D) 67.5% Herbert Sohn (R) 32.5% |
| Illinois 10 | John E. Porter | Republican | 1980 | Re-elected | John E. Porter (R) 72.6% Ruth C. Braver (D) 27.4% |