| nowrap | |- ! | Lewis Williams | | Democratic-Republican | 1815 | Incumbent re-elected. | nowrap | |} Ohio Ohio gained eight seats in reapportionment following the 1820 United States Census. Ohio elected its members October 8, 1822. |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |- ! | Thomas R. Ross | | Democratic-Republican | 1818 | Incumbent re-elected. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |- ! | Joseph Vance | | Democratic-Republican | 1820 | Incumbent re-elected. | nowrap | |- ! | John W. Campbell | | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |- ! | Levi Barber | | Democratic-Republican | 18161818 1820 | | Incumbent lost re-election.New member elected.Democratic-Republican hold. | nowrap | |- ! | colspan=3 | None (District created) | | New seat.New member elected.Democratic-Republican gain. | nowrap | |- ! | David Chambers | | Democratic-Republican | 1821 | | Incumbent lost re-election.New member elected.Democratic-Republican hold. | 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 | |- ! | John Sloane | | Democratic-Republican | 1818 | Incumbent re-elected. | 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 | |} Pennsylvania Pennsylvania gained three seats in reapportionment following the 1820 United States Census. Pennsylvania elected its members October 8, 1822. |- ! | colspan=3 | None (District created) | | New seat.New member elected.Federalist gain. | nowrap | |- ! | Joseph Hemphill | | Federalist | 18001802 1818 | Incumbent re-elected. | nowrap | |- ! | Thomas Forrest | | Federalist | 1822 | | Incumbent lost re-election.New member elected.Democratic-Republican gain. | nowrap | |- ! rowspan=3 | | James Buchanan | | Federalist | 1820 | Incumbent re-elected. | rowspan=3 nowrap | |- | William Darlington | | Democratic-Republican | 18141816 1818 |