United States House of Representatives elections, 1970 Illinois Illinois

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Illinois 2 | Abner J. Mikva | Democratic | 1968 | Re-elected | Abner J. Mikva (D) 74.7% Harold E. Marks (R) 25.3% |
| Illinois 4 | Ed Derwinski | Republican | 1958 | Re-elected | Ed Derwinski (R) 68.0% Melvin W. Morgan (D) 32.0% |
| Illinois 7 | Frank Annunzio | Democratic | 1964 | Re-elected | Frank Annunzio (D) 87.3% Thomas J. Lento (R) 12.7% |
| Illinois 9 | Sidney R. Yates | Democratic | 1964 | Re-elected | Sidney R. Yates (D) 75.8% Edward Wolbank (R) 24.2% |
| Illinois 12 | Robert McClory | Republican | 1962 | Re-elected | Robert McClory (R) 62.1% James J. Cone (D) 37.9% |
| Illinois 13 | Phil Crane | Republican | 1969 | Re-elected | Phil Crane (R) 58.0% Edward A. Warman (D) 42.0% |