| | Incumbent resigned August 20, 1801.New member elected July 29, 1802 on the fifth ballot.Federalist hold.New member seated December 6, 1802. | nowrap | First ballot :Orchard Cook (Democratic-Republican) 47.9%Martin Kingsley (Democratic-Republican) 23.6%Nathaniel Drummer (Unknown) 24.1%Scattering 4.3%Second ballot :Orchard Cook (Democratic-Republican) 42.5%Martin Kingsley (Democratic-Republican) 34.2%Phineas Bruce (Federalist) 7.1%Nathaniel Drummer (Unknown) 16.2%Third ballot :Orchard Cook (Democratic-Republican) 45.0%Martin Kingsley (Democratic-Republican) 32.4%Phineas Bruce (Federalist) 13.3%Nathaniel Drummer (Unknown) 9.2%Fourth ballot :Samuel Thatcher (Federalist) 33.0%Martin Kingsley (Democratic-Republican) 45.0%Phineas Bruce (Federalist) 8.3%Scattering 13.6%Fifth ballot : |- ! | Joseph Peirce | | Federalist | 1800 | | Incumbent resigned sometime in 1802.New member elected August 30, 1802.Federalist hold.New member seated December 6, 1802.New member also elected, the same day, to the next term, see below. | nowrap | |- ! | Narsworthy Hunter | | Democratic-Republican | 1801 | | Incumbent died March 11, 1802.New delegate elected August 1, 1802.Democratic-Republican hold.New delegate seated December 6, 1802.Winner was not elected to the next term, see below. | nowrap | |- ! | Charles Johnson | | Democratic-Republican | 1800 | | Incumbent died July 23, 1802.New member elected October 15, 1802.Democratic-Republican hold.New member seated December 7, 1802. | nowrap | |- ! | John Milledge | | Democratic-Republican | 1794 | | Incumbent resigned May 1802 to become Governor of Georgia.New member elected December 15, 1802.Democratic-Republican hold.New member seated January 10, 1803. | nowrap | |} 8th Congress |- ! | John Cantine | | Democratic-Republican | 1802 | | Incumbent resigned before the Congress began.New member elected April 28, 1803.Democratic-Republican hold.Winner was seated October 17, 1803. | nowrap | |- ! | Elias Perkins | | Federalist | 1800 | | Incumbent chose not to serve.New member elected September 5, 1803.Federalist hold.Winner was seated October 17, 1803. | nowrap | |- ! | Isaac Bloom | | Democratic-Republican | 1802 | | Incumbent died April 26, 1803.New member elected September 16, 1803.Democratic-Republican hold.Winner was seated October 17, 1803. | nowrap | |- ! | John Milledge | | Democratic-Republican | 1794 | | Incumbent chose not to serve, having been elected Governor of Georgia.New member elected October 3, 1803.Democratic-Republican hold.New member seated October 17, 1803. | nowrap | |} Connecticut |- ! rowspan=7 | | John Cotton Smith | | Federalist | 1800 | Incumbent re-elected. | rowspan=7 nowrap | |- | Benjamin Tallmadge | | Federalist | 1801 | Incumbent re-elected. |- | Samuel