Although Maine neither gained nor lost seats after the 1820 United States census, redistricting placed two incumbents into the . Maine elected its members on April 7, 1823, after the term began but before the new Congress convened. Maine law required a majority for election, with additional ballots taken if a majority were not achieved. This proved necessary in 1823 in the,,, and districts, but all members were still chosen before the new Congress convened.
| District | Incumbent | Party | First elected | Result | Candidates | ||||
|---|---|---|---|---|---|---|---|---|---|
| Joseph Dane | Federalist | 1820 (Special) | Incumbent retired. New member elected. Democratic-Republican gain. | nowrap | |||||
| Mark Harris | Democratic-Republican | 1822 (Special) | Incumbent retired. New member elected. Federalist gain. | nowrap | |||||
| Ebenezer Herrick | Democratic-Republican | 1821 | Incumbent re-elected. | ||||||
| Mark Langdon Hill | Democratic-Republican | 1819 | Incumbent lost re-election. Democratic-Republican loss. | ||||||
| Joshua Cushman | Democratic-Republican | 1818 | Incumbent re-elected. | nowrap | |||||
| Enoch Lincoln | Democratic-Republican | 1818 (Special) | Incumbent re-elected. | nowrap | |||||
| None (District created) | New seat. New member elected. Democratic-Republican gain. | nowrap | |||||||
| William D. Williamson | Democratic-Republican | 1820 | Incumbent lost re-election. New member elected. Democratic-Republican hold. | nowrap | |||||