re-elected. | nowrap | |- ! | Bob Bergland | | Democratic | 1970 | Incumbent re-elected. | nowrap | |- ! | Jim Oberstar | | Democratic | 1974 | Incumbent re-elected. | nowrap | |} Mississippi |- ! | Jamie Whitten | | Democratic | 1941 | Incumbent re-elected. | nowrap | |- ! | David R. Bowen | | Democratic | 1972 | Incumbent re-elected. | nowrap | |- ! | Sonny Montgomery | | Democratic | 1966 | Incumbent re-elected. | nowrap | |- ! | Thad Cochran | | Republican | 1972 | Incumbent re-elected. | nowrap | |- ! | Trent Lott | | Republican | 1972 | Incumbent re-elected. | nowrap | |} Missouri |- ! | Bill Clay | | Democratic | 1968 | Incumbent re-elected. | nowrap | |- ! | James W. Symington | | Democratic | 1968 | | Incumbent retired to run for U.S. senator.New member elected.Democratic hold. | nowrap | |- ! | Leonor Sullivan | | Democratic | 1952 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | William J. Randall | | Democratic | 1959 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Richard Bolling | | Democratic | 1948 | Incumbent re-elected. | nowrap | |- ! | Jerry Litton | | Democratic | 1972 | | Incumbent died.New member elected.Republican gain. | nowrap | |- ! | Gene Taylor | | Republican | 1972 | Incumbent re-elected. | nowrap | |- ! | Richard Howard Ichord Jr. | | Democratic | 1960 | Incumbent re-elected. | nowrap | |- ! | William L. Hungate | | Democratic | 1964 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Bill Burlison | | Democratic | 1968 | Incumbent re-elected. | nowrap | |} Montana |- ! | Max Baucus | | Democratic | 1974 | Incumbent re-elected. | nowrap | |- ! | John Melcher | | Democratic | 1969 | | Incumbent retired to run for U.S. senator.New member elected.Republican gain. | nowrap | |} Nebraska |- ! | Charles Thone | | Republican | 1970 | Incumbent re-elected. | nowrap | |- ! | John Y. McCollister | | Republican | 1970 | | Incumbent retired to run for U.S. senator.New member elected.Democratic gain. | nowrap | |- !