|- ! | Frank Crowther | | Republican | 1918 | Incumbent re-elected. | nowrap | |- ! | Bertrand Snell | | Republican | 1915 | Incumbent re-elected. | nowrap | |- ! | Thaddeus C. Sweet | | Republican | 1923 | | Incumbent died May 1, 1928.New member elected.Republican hold.Winner also elected to finish the term, see above. | nowrap | |- ! | Frederick M. Davenport | | Republican | 1924 | Incumbent re-elected. | nowrap | |- ! | John D. Clarke | | Republican | 1926 | Incumbent re-elected. | nowrap | |- ! | Clarence E. Hancock | | Republican | 1927 | Incumbent re-elected. | nowrap | |- ! | John Taber | | Republican | 1922 | Incumbent re-elected. | nowrap | |- ! | Gale H. Stalker | | Republican | 1922 | Incumbent re-elected. | nowrap | |- ! | Meyer Jacobstein | | Democratic | 1922 | | Incumbent retired.New member elected.Republican gain. | nowrap | |- ! | Archie D. Sanders | | Republican | 1916 | Incumbent re-elected. | nowrap | |- ! | S. Wallace Dempsey | | Republican | 1914 | Incumbent re-elected. | nowrap | |- ! | Clarence MacGregor | | Republican | 1918 | | Incumbent retired to New York Supreme Court justice.New member elected.Republican hold. | nowrap | |- ! | James M. Mead | | Democratic | 1918 | Incumbent re-elected. | nowrap | |- ! | Daniel A. Reed | | Republican | 1918 | Incumbent re-elected. | nowrap | |} North Carolina |- ! | Lindsay C. Warren | | Democratic | 1924 | Incumbent re-elected. | nowrap | |- ! | John H. Kerr | | Democratic | 1923 | Incumbent re-elected. | nowrap | |- ! | Charles L. Abernethy | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Edward W. Pou | | Democratic | 1900 | Incumbent re-elected. | nowrap | |- ! | Charles Manly Stedman | | Democratic | 1910 | Incumbent re-elected. | nowrap | |- ! | Homer L. Lyon | | Democratic | 1920 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | William C. Hammer | | Democratic | 1920 | Incumbent re-elected. | nowrap | |- ! | Robert L. Doughton | | Democratic | 1910 |