Incumbent lost renomination.New member elected.Democratic hold. | nowrap | |- ! | J. L. Pilcher | | Democratic | 1953 | Incumbent re-elected. | nowrap | |- ! | Tic Forrester | | Democratic | 1950 | Incumbent re-elected. | nowrap | |- ! | John Flynt | | Democratic | 1954 | Incumbent re-elected. | nowrap | |- ! | James C. Davis | | Democratic | 1946 | Incumbent re-elected. | nowrap | |- ! | Carl Vinson | | Democratic | 1914 | Incumbent re-elected. | nowrap | |- ! | Harlan Erwin Mitchell | | Democratic | 1958 | | Retired to run for Georgia State Senator.New member elected.Democratic hold. | nowrap | |- ! | Iris Faircloth Blitch | | Democratic | 1954 | Incumbent re-elected. | nowrap | |- ! | Phillip M. Landrum | | Democratic | 1952 | Incumbent re-elected. | nowrap | |- ! | Paul Brown | | Democratic | 1933 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |} Hawaii |- ! | Daniel Inouye | | Democratic | 1959 | Incumbent re-elected. | nowrap | |} Idaho |- ! | Gracie Pfost | | Democratic | 1952 | Incumbent re-elected. | nowrap | |- ! | Hamer H. Budge | | Republican | 1950 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |} Illinois |- ! | William L. Dawson | | Democratic | 1942 | Incumbent re-elected. | nowrap | |- ! | Barratt O'Hara | | Democratic | 19481950 1952 | Incumbent re-elected. | nowrap | |- ! | William T. Murphy | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | Ed Derwinski | | Republican | 1958 | Incumbent re-elected. | nowrap | |- ! | John C. Kluczynski | | Democratic | 1950 | Incumbent re-elected. | nowrap | |- ! | Thomas J. O'Brien | | Democratic | 1942 | Incumbent re-elected. | nowrap | |- ! | Roland V. Libonati | | Democratic | 1957 | Incumbent re-elected. | nowrap | |- ! | Dan Rostenkowski | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | Sidney R. Yates | | Democratic | 1948 | Incumbent re-elected. | nowrap | |- ! | Harold R. Collier | | Republican | 1956 | Incumbent re-elected. | nowrap | |-