Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Charles L. Faust | | Republican | 1920 | Incumbent re-elected. | nowrap | |- ! | George H. Combs Jr. | | Democratic | 1926 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Clement C. Dickinson | | Democratic | 1922 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Samuel C. Major | | Democratic | 1922 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | William L. Nelson | | Democratic | 1924 | Incumbent re-elected. | nowrap | |- ! | Clarence Cannon | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Henry F. Niedringhaus | | Republican | 1926 | Incumbent re-elected. | nowrap | |- ! | John J. Cochran | | Democratic | 1926 | Incumbent re-elected. | nowrap | |- ! | Leonidas C. Dyer | | Republican | 1914 | Incumbent re-elected. | nowrap | |- ! | Clyde Williams | | Democratic | 1926 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | James F. Fulbright | | Democratic | 1926 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Joe J. Manlove | | Republican | 1922 | Incumbent re-elected. | nowrap | |- ! | Thomas L. Rubey | | Democratic | 1922 | | Incumbent died November 2, 1928.New member elected.Republican gain. | nowrap | |} Montana |- ! | John M. Evans | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Scott Leavitt | | Republican | 1922 | Incumbent re-elected. | nowrap | |} Nebraska |- ! | John H. Morehead | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Willis G. Sears | | Republican | 1922 | Incumbent re-elected. | nowrap | |- ! | Edgar Howard | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | John N. Norton | | Democratic | 1926 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Ashton C. Shallenberger | | Democratic | 1922 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Robert G. Simmons | |