| |- ! | Richard M. Johnson | | Democratic-Republican | 1806 | Incumbent re-elected. | nowrap | |- ! | Joseph Desha | | Democratic-Republican | 1806 | Incumbent re-elected. | nowrap | |- ! | Anthony New | | Democratic-Republican | 1810 | | Incumbent retired.New member elected.Democratic-Republican hold. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |- ! | Samuel McKee | | Democratic-Republican | 1808 | Incumbent re-elected. | nowrap | |- ! | Stephen Ormsby | | Democratic-Republican | 1810 | | Incumbent lost re-election.New member elected.Democratic-Republican hold.Successor died January 22, 1813, leading to a special election see above. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |} Louisiana Louisiana held its election for the 13th Congress September 28–30, 1812, at the same time as the election for the 12th Congress, with nearly-identical results. 12th Congress |- ! | colspan=3 | None (District created) | | New district, seat created.New member elected September 28–30, 1812.Democratic-Republican gain.New member seated December 23, 1812.Member also elected the same day to the next term, see below. | nowrap | |} 13th Congress |- ! | colspan=3 | None (District created) | | New district, seat created.New member elected September 28–30, 1812.Democratic-Republican gain.Successor elected the same day to finish the current term, see above. | nowrap | |} Maryland Maryland's apportionment was unchanged. It elected its members October 12, 1812. |- ! | Philip Stuart | | Federalist | 1810 | Incumbent re-elected. | nowrap | |- ! | Joseph Kent | | Democratic-Republican | 1810 | Incumbent re-elected. | nowrap | |- ! | Philip Barton Key | | Federalist | 1806 | | Incumbent retired.New member elected.Federalist hold. | nowrap | |- ! | Samuel Ringgold | | Democratic-Republican | 1810 | Incumbent re-elected. | nowrap | |- ! rowspan=2 | | Alexander McKim | | Democratic-Republican | 1808 | Incumbent re-elected. | rowspan=2 nowrap | |- | Peter Little | | Democratic-Republican | 1810 | | Incumbent lost re-election.New member elected.Democratic-Republican hold. |- ! | Stevenson Archer | | Democratic-Republican | 1811 | Incumbent re-elected. | nowrap | |- ! | Robert Wright