| | Samuel Sewall | | Federalist | 1796 | | Incumbent resigned January 10, 1800.New member elected October 20, 1800.Federalist hold.Winner seated February 6, 1801. | nowrap | |- | | William Gordon | | Federalist | 1796 | | Incumbent resigned June 12, 1800 to become N.H. Attorney General.New member elected October 27, 1800.Federalist hold.Winner also elected to next term, see below. | nowrap | |- | | William Henry Harrison | | None | 1799 | | Incumbent resigned to become Governor of Indiana Territory.New member elected November 6, 1800 by the territorial legislature.Federalist gain.Successor seated November 24, 1800.Successor was not a candidate for the next term, see below. | nowrap | |- | | Samuel Lyman | | Federalist | 1794 | | Incumbent resigned November 6, 1800.New member elected December 15, 1800.Federalist hold.Winner seated February 2, 1801. | nowrap | |- | | Thomas Hartley | | Federalist | 1788 | | Incumbent died December 21, 1800.New member elected January 15, 1801.Democratic-Republican gain.Winner had already been elected to the next term, see below.Winner seated February 3, 1801. | nowrap | |} 7th Congress Connecticut Note: Between the two sources used, there is disagreement over the ordering of the candidates. Both sources have the same numbers of votes recorded, but disagree on which candidates received those votes, one source lists Goddard as 8th, Talmadge as 9th, etc., as listed here, while the other has them as 11th, 12th, etc., three places off for all of them until the bottom three listed here which are moved up to 8th-10th, suggesting that one of the two sources accidentally misplaced three names on the list. They are ordered here as Goddard and Talmadge in 8th and 9th place as it is more likely that they'd been at the top of the runners-up given that they were subsequently elected to fill vacancies in the 7th Congress. Delaware Georgia Kentucky Maryland Massachusetts Massachusetts law required a majority for election, which was not met in the 1st and 6th districts, necessitating a second trial. Mississippi Territory See Non-voting delegates, below. New Hampshire New Jersey In 1800, New Jersey returned to its traditional at-large district, continued to use this system to select representatives until it was abolished in 1842, with a single exception in 1813. New York North Carolina Northwest Territory See Non-voting delegates, below. Pennsylvania Rhode Island Rhode Island switched to a