| Democratic-Republican | 1818 | | Incumbent lost re-election.New member elected.Democratic-Republican hold. | nowrap | |- ! | Joseph Brevard | | Democratic-Republican | 1818 | | Incumbent retired.New member elected.Democratic-Republican hold.Winner declined to serve, leading to a special election sometime in 1821. | nowrap | |} Tennessee Tennessee elected its members August 9–10, 1821, after the term began but before the new Congress convened. |- ! | John Rhea | | Democratic-Republican | 18031815 1817 | Incumbent re-elected. | nowrap | |- ! | John Cocke | | Democratic-Republican | 1819 | Incumbent re-elected. | nowrap | |- ! | Francis Jones | | Democratic-Republican | 1817 | Incumbent re-elected. | nowrap | |- ! | Robert Allen | | Democratic-Republican | 1819 | Incumbent re-elected. | nowrap | |- ! | Newton Cannon | | Democratic-Republican | 1814 1817 1819 | Incumbent re-elected. | nowrap | |- ! | Henry H. Bryan | | Democratic-Republican | 1819 | Incumbent re-elected.Winner never appeared to take his seat. | nowrap | |} Vermont In 1820, Vermont returned to using districts. This would be the only election in which the would be used. Vermont elected its members September 5, 1820. A majority was required for election, which was not met in the 2nd or 3rd district, requiring additional ballots to achieve a majority. The 2nd district required 7 ballots. The 3rd district required two additional ballots. The additional ballots were held December 11, 1820, and February 19, May 1, July 2, September 4, and October 22, 1821. |- ! | Rollin Carolas Mallary | | Democratic-Republican | 1818 | Incumbent re-elected. | nowrap | |- ! | Mark Richards | | Democratic-Republican | 1816 | | Incumbent lost re-election.New member elected on the seventh ballot.Democratic-Republican hold. | nowrap | |- ! rowspan=2 | | Charles Rich | | Democratic-Republican | 18121814 1816 | Incumbent re-elected on the third ballot. | rowspan=2 nowrap | |- | Ezra Meech | | Democratic-Republican | 1818 | | Incumbent lost re-election.Democratic-Republican loss. |- ! | William Strong | | Democratic-Republican | 18101814 1818 | | Incumbent lost re-election.New member elected.Democratic-Republican hold. | nowrap | |- ! | Samuel C. Crafts | | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |} Virginia Virginia elected its members