nowrap | |- ! | Martha W. Griffiths | | Democratic | 1954 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Robert J. Huber | | Republican | 1972 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! | William Broomfield | | Republican | 1956 | Incumbent re-elected. | nowrap | |} Minnesota |- ! | Al Quie | | Republican | 1958 | Incumbent re-elected. | nowrap | |- ! | Ancher Nelsen | | Republican | 1958 | | Incumbent retired.New member elected.Republican hold. | nowrap | |- ! | Bill Frenzel | | Republican | 1970 | Incumbent re-elected. | nowrap | |- ! | Joseph Karth | | | 1958 | Incumbent re-elected. | nowrap | |- ! | Donald M. Fraser | | | 1962 | Incumbent re-elected. | nowrap | |- ! | John Zwach | | Republican | 1966 | | Incumbent retired.New member elected. gain. | nowrap | |- ! | Bob Bergland | | | 1970 | Incumbent re-elected. | nowrap | |- ! | John Blatnik | | | 1946 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |} Mississippi |- ! | Jamie Whitten | | Democratic | 1941 | Incumbent re-elected. | nowrap | |- ! | David R. Bowen | | Democratic | 1972 | Incumbent re-elected. | nowrap | |- ! | Gillespie V. 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 re-elected. | nowrap | |- ! | Leonor Sullivan | | Democratic | 1952 | Incumbent re-elected. | nowrap | |- ! | William J. Randall | | Democratic | 1959 | Incumbent re-elected. | nowrap | |- ! | Richard Bolling | | Democratic | 1948 | Incumbent re-elected. | nowrap | |- ! | Jerry Litton | | Democratic | 1972 | Incumbent re-elected. | nowrap | |- ! | Gene Taylor | | Republican | 1972 | Incumbent re-elected. | nowrap |