Alabama.New member elected sometime in 1880.Democratic hold.Successor seated December 8, 1880.Successor had not been a candidate to the next term, see below. | nowrap | |- ! | James A. Garfield | | Republican | 1862 | | Incumbent resigned November 8, 1880 to become U.S. President.New member November 30, 1880.Republican hold.Successor seated December 13, 1880.Successor had already been elected to the next term, see below. | nowrap | |- ! | Evarts Worcester Farr | | Republican | 1878 | | Incumbent died November 30, 1880.New member elected December 28, 1880.Republican hold.Successor seated January 8, 1881.Successor was also elected to the next term. | nowrap | |} 47th Congress |- ! | Evarts Worcester Farr | | Republican | 1878 | | Incumbent member-elect died November 30, 1880, having just been re-elected.New member elected December 28, 1880.Republican hold.Successor was also elected to finish the current term. | nowrap | |} Alabama |- ! | Thomas H. Herndon | | Democratic | 1878 | Incumbent re-elected. | nowrap | |- ! | Hilary A. Herbert | | Democratic | 1876 | Incumbent re-elected. | nowrap | |- ! | William J. Samford | | Democratic | 1878 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Charles M. Shelley | | Democratic | 1876 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Thomas Williams | | Democratic | 1878 | Incumbent re-elected. | nowrap | |- ! | Newton N. Clements | | Democratic | 1880 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | William H. Forney | | Democratic | 1874 | Incumbent re-elected. | nowrap | |- ! | William M. Lowe | | Greenback | 1878 | Incumbent re-elected. | nowrap | |} Arkansas |- ! | Poindexter Dunn | | 1878 | Incumbent re-elected. | nowrap | |- ! | William F. Slemons | | 1874 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Jordan E. Cravens | | 1876 | Incumbent re-elected. | nowrap | |- ! | Thomas M. Gunter | | 1872 | Incumbent re-elected. | nowrap | |} California |- ! | Horace Davis | | Republican | 1876 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! | Horace F. Page | | Republican | 1872 |