Massachusetts elected its members November 2, 1818. Massachusetts's electoral law required a majority for election, necessitating additional elections in five districts on April 5, 1819, and July 26, 1819.
This was the last election in which the District of Maine was part of Massachusetts. The District became the State of Maine during the 16th Congress.
| District | Incumbent | This race | ||||||
|---|---|---|---|---|---|---|---|---|
| Member | Party | First elected | Results | Candidates | ||||
| Jonathan Mason | Federalist | 1817 (Special) | Incumbent re-elected. | nowrap | √ Jonathan Mason (Federalist) 64.5% Andrew Ritchie (Democratic-Republican) 35.5% | |||
| Nathaniel Silsbee | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | √ Nathaniel Silsbee (Democratic-Republican) 64.2% Timothy Pickering (Federalist) 34.5% Thomas Stevens (Federalist) 1.3% | |||
| Jeremiah Nelson | Federalist | 1804 1806 (Retired) 1814 | Incumbent re-elected. | nowrap | √ Jeremiah Nelson (Federalist) 87.0% Joseph Bradley Varnum (Democratic-Republican) 7.9% Others 5.1% | |||
| Timothy Fuller | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | √ Timothy Fuller (Democratic-Republican) 63.9% Samuel P. Fay (Federalist) 36.1% | |||
| Elijah H. Mills | Federalist | 1814 | Incumbent retired. New member elected. Federalist hold. | Samuel Lathrop (Federalist) 48.1% Isaac C. Bates (Federalist) 22.7% Thomas Shepherd (Democratic-Republican) 19.6% Joseph Lyman (Federalist) 9.5% √ Samuel Lathrop (Federalist) 55.5% Thomas Shepherd (Democratic-Republican) 27.7% Joseph Lyman (Federalist) 16.8% | ||||
| Samuel C. Allen | Federalist | 1816 | Incumbent re-elected. | nowrap | √ Samuel C. Allen (Federalist) 86.2% Elihu Lyman (Democratic-Republican) 8.0% Others 5.8% | |||
| Henry Shaw | Democratic-Republican | 1816 | Incumbent re-elected. | Henry Shaw (Democratic-Republican) 48.8% Henry W. Dwight (Federalist) 47.0% Ambrose Hall 2.7% Others 1.5% √ Henry Shaw (Democratic-Republican) 50.8% Henry W. Dwight (Federalist) 45.8% Others 3.4%[1] | ||||
| Zabdiel Sampson | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | √ Zabdiel Sampson (Democratic-Republican) 59.6% William Bourne (Federalist) 40.4% | |||
| Walter Folger Jr. | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | √ Walter Folger Jr. (Democratic-Republican) 51.3% John Reed Jr. (Federalist) 48.7% | |||
| Marcus Morton | Democratic-Republican | 1816 | Re-elected | nowrap | √ Marcus Morton (Democratic-Republican) 55.0% Francis Baylies (Federalist) 43.8% Hodijah Baylies 1.2% | |||
| Benjamin Adams | Federalist | 1816 | Incumbent re-elected. | nowrap | √ Benjamin Adams (Federalist) 59.8% Sumner Barstow (Democratic-Republican) 40.2% | |||
| Solomon Strong | Federalist | 1814 | Incumbent retired. New member elected. Federalist hold. | nowrap | √ Jonas Kendall 63.5% Edmund Cushing (Democratic-Republican) 31.7% Others 4.8% | |||
| Nathaniel Ruggles | Federalist | 1812 | Incumbent lost re-election. New member elected. Democratic-Republican gain. | nowrap | √ Edward Dowse (Democratic-Republican) 54.9% Nathaniel Ruggles (Federalist) 45.1% | |||
| John Holmes | Democratic-Republican | 1816 | Incumbent re-elected. | nowrap | √ John Holmes (Democratic-Republican) 93.6% Others 6.4% | |||
| Ezekiel Whitman | Federalist | 1808 1810 (Lost) 1816 | Incumbent re-elected. | nowrap | √ Ezekiel Whitman (Federalist) 54.0% Arthur Ware (Democratic-Republican) 46.0% | |||
| Benjamin Orr | Federalist | 1816 | Incumbent lost re-election. New member elected. Democratic-Republican gain. | Mark L. Hill (Democratic-Republican) 48.6% Benjamin Orr (Federalist) 38.0% Others 13.4% Mark L. Hill (Democratic-Republican) 52.1% Benjamin Orr (Federalist) 41.3% Joshua Head (Federalist) 7.3%[2] √ Mark L. Hill (Democratic-Republican) 52.1% Benjamin Orr (Federalist) 47.9%[3] | ||||
| John Wilson | Federalist | 1816 | Incumbent lost re-election. New member elected. Democratic-Republican gain. | Martin Kinsley (Democratic-Republican) 41.3% John Wilson (Federalist) 29.9% Leonard Jarvis (Democratic-Republican) 24.7% Others 4.1% Martin Kinsley (Democratic-Republican) 48.3% John Wilson (Federalist) 29.9% Leonard Jarvis (Democratic-Republican) 15.7% Others 6.1% √ Martin Kinsley (Democratic-Republican) 61.7% John Wilson (Federalist) 29.3% Leonard Jarvis (Democratic-Republican) 2.4% Others 6.7% | ||||
| Thomas Rice | Federalist | 1814 | Incumbent lost re-election. New member elected. Democratic-Republican gain. | James Parker (Democratic-Republican) 49.7% Peter Grant (Federalist) 41.8% Joshua Gage (Democratic-Republican) 5.3% Others 3.2% √ James Parker (Democratic-Republican) 57.3% Thomas Rice (Federalist) 34.8% Joshua Gage (Democratic-Republican) 7.2% | ||||
| Joshua Gage | Democratic-Republican | 1816 | Ran in the and lost re-election. New member elected. Democratic-Republican hold. | nowrap | √ Joshua Cushman (Democratic-Republican) 56.1% Thomas Rice (Federalist) 43.9% | |||
| Enoch Lincoln | Democratic-Republican | 1818 (Special) | Incumbent re-elected. | nowrap | √ Enoch Lincoln (Democratic-Republican) 66.6% Samuel A. Bradley (Federalist) 33.4% | |||