| Incumbent resigned May 31, 1928, after being appointed to the United States Court of Claims.New member elected November 6, 1928.Republican hold.Winner also elected to the next term, see below. | nowrap | |- ! | Thomas S. Butler | | Republican | 1896 | | Incumbent died May 26, 1928.New member elected November 6, 1928.Republican hold.Winner also elected to the next term, see below. | nowrap | |} Alabama |- ! | John McDuffie | | Democratic | 1918 | Incumbent re-elected. | nowrap | |- ! | J. Lister Hill | | Democratic | 1923 | Incumbent re-elected. | nowrap | |- ! | Henry B. Steagall | | Democratic | 1914 | Incumbent re-elected. | nowrap | |- ! | Lamar Jeffers | | Democratic | 1921 | Incumbent re-elected. | nowrap | |- ! | William B. Bowling | | Democratic | 1920 | | Incumbent resigned August 16, 1928, to become judge of the 5th Judicial Circuit of Alabama.New member elected November 6, 1928.Democratic hold.Winner also elected to finish the term, see above. | nowrap | |- ! | William B. Oliver | | Democratic | 1914 | Incumbent re-elected. | nowrap | |- ! | Miles C. Allgood | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Edward B. Almon | | Democratic | 1914 | Incumbent re-elected. | nowrap | |- ! | George Huddleston | | Democratic | 1914 | Incumbent re-elected. | nowrap | |- ! | William B. Bankhead | | Democratic | 1916 | Incumbent re-elected. | nowrap | |} Arizona |- ! | Lewis W. Douglas | | Democratic | 1926 | Incumbent re-elected. | nowrap | |} Alaska Territory See Non-voting delegates, below. Arkansas |- ! | William J. Driver | | Democratic | 1920 | Incumbent re-elected. | nowrap | |- ! | William A. Oldfield | | Democratic | 1908 | Incumbent re-elected. | nowrap | |- ! | John N. Tillman | | Democratic | 1914 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Otis Wingo | | Democratic | 1912 | Incumbent re-elected. | nowrap | |- ! | Heartsill Ragon | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | James B. Reed | | Democratic | 1923 | | Incumbent lost renomination.New member elected.Democratic hold. | nowrap