! | Roman Pucinski | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | Charles A. Boyle | | Democratic | 1954 | | Incumbent died November 4, 1959.New member elected.Democratic hold. | nowrap | |- ! | Marguerite S. Church | | Republican | 1950 | Incumbent re-elected. | nowrap | |- ! | Elmer J. Hoffman | | Republican | 1958 | Incumbent re-elected. | nowrap | |- ! | Noah M. Mason | | Republican | 1936 | Incumbent re-elected. | nowrap | |- ! | Leo E. Allen | | Republican | 1932 | | Incumbent retired.New member elected.Republican hold. | nowrap | |- ! | Leslie C. Arends | | Republican | 1934 | Incumbent re-elected. | nowrap | |- ! | Robert H. Michel | | Republican | 1956 | Incumbent re-elected. | nowrap | |- ! | Robert B. Chiperfield | | Republican | 1938 | Incumbent re-elected. | nowrap | |- ! | Edna O. Simpson | | Republican | 1958 | | Incumbent retired.New member elected.Republican hold. | nowrap | |- ! | Peter F. Mack Jr. | | Democratic | 1948 | Incumbent re-elected. | nowrap | |- ! | William L. Springer | | Republican | 1950 | Incumbent re-elected. | nowrap | |- ! | George E. Shipley | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | Melvin Price | | Democratic | 1944 | Incumbent re-elected. | nowrap | |- ! | Kenneth J. Gray | | Democratic | 1954 | Incumbent re-elected. | nowrap | |} Indiana |- ! | Ray Madden | | Democratic | 1942 | Incumbent re-elected. | nowrap | |- ! | Charles A. Halleck | | Republican | 1935 | Incumbent re-elected. | nowrap | |- ! | John Brademas | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | E. Ross Adair | | Republican | 1950 | Incumbent re-elected. | nowrap | |- ! | J. Edward Roush | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | Fred Wampler | | Democratic | 1958 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | William G. Bray | | Republican | 1950 | Incumbent re-elected. | nowrap | |- ! | Winfield K. Denton | | Democratic