| Name | Held Office | Political Party |
|---|---|---|
| William King | Mar 15, 1820 May 28, 1821 |
Democratic Republican |
| William D. Williamson | May 28, 1821 Dec 5, 1821 |
Democratic Republican |
| Benjamin Ames | Dec 5, 1821 Jan 2, 1822 |
Democratic Republican |
| Daniel Rose | Jan 2, 1822 Jan 5, 1822 |
Democratic Republican |
| Albion K. Parris | Jan 5, 1822 Jan 3, 1827 |
Democratic Republican |
| Enoch Lincoln | Jan 3, 1827 Oct 8, 1829 |
Democratic Republican |
| Nathan Cutler | Oct 8, 1829 Jan 6, 1830 |
Democratic |
| Joshua Hall | Jan 6, 1830 Feb 9, 1830 |
Democratic |
| Jonathan Hunton | Feb 9, 1830 Jan 5, 1831 |
National Republican |
| Samuel E. Smith | Jan 5, 1831 Jan 1, 1834 |
Democratic |
| Robert Dunlap | Jan 1, 1834 Jan 3, 1838 |
Democratic |
| Richard H. Vose | Jan 12, 1841 Jan 13, 1841 |
Whig |
| Edward Kent | Jan 13, 1841 Jan 5, 1842 |
Whig |
| John Fairfield | Jan 5, 1842 Mar 7, 1843 |
Democratic |
| Edward Kavanaugh | Mar 7, 1843 Jan 1, 1844 |
Democratic |
| David Dunn | Jan 1, 1844 Jan 3, 1844 |
Democratic |
| Hugh J. Anderson | Jan 3, 1844 May 12, 1847 |
Democratic |
| John W. Dana | May 12, 1847 May 8, 1850 |
Democratic |
| John Hubbard | May 8, 1850 Jan 5, 1853 |
Democratic |
| William G. Crosby | Jan 5, 1853 Jan 3, 1855 |
Whig |
| Anson P. Morrill | Jan 3, 1855 Jan 2, 1856 |
Republican |
| Samuel Wells | Jan 2, 1856 Jan 8, 1857 |
Democratic |
| Hannibal Hamlin | Jan 8, 1857 Feb 25, 1857 |
Republican |
| Joseph H. Williams | Feb 25, 1857 Jan 6, 1858 |
Republican |
| Lot M. Morrill | Jan 6, 1858 Jan 2, 1861 |
Republican |
| Israel Washburn Jr. | Jan 2, 1861 Jan 7, 1863 |
Republican |
| Abner Coburn | Jan 7, 1863 Jan 6, 1864 |
Republican |
| Samuel Cony | Jan 6, 1864 Jan 2, 1867 |
Republican |
| Joshua L. Chamberlain | Jan 2, 1867 Jan 4, 1871 |
Republican |
| Sidney Perham | Jan 4, 1871 Jan 7, 1874 |
Republican |
| Nelson Dingley Jr. | Jan 7, 1874 Jan 5, 1876 |
Republican |
| Seldon Connor | Jan 5, 1876 Jan 8, 1879 |
Republican |
| Alonzo Garcelon | Jan 8, 1879 Jan 17, 1880 |
Democratic |
| Daniel F. Davis | Jan 17, 1880 Jan 13, 1881 |
Republican |
| Harris M. Plaisted | Jan 13, 1881 Jan 3, 1883 |
Democratic |
| Frederick Robie | Jan 3, 1883 Jan 5, 1887 |
Republican |
| Joseph R. Bodwell | Jan 5, 1887 Dec 15, 1887 |
Republican |
| S. S. Marble | Dec 15, 1887 Jan 2, 1889 |
Republican |
| Edwin C. Burleigh | Jan 2, 1889 Jan 4, 1893 |
Republican |
| Henry B. Cleaves | Jan 4, 1893 Jan 2, 1897 |
Republican |
| Llewellyn Powers | Jan 2, 1897 Jan 2, 1901 |
Republican |
| John Fremont Hill | Jan 2, 1901 Jan 4, 1905 |
Republican |
| William T. Cobb | Jan 4, 1905 Jan 6, 1909 |
Republican |
| Bert M. Fernald | Jan 6, 1909 Jan 4, 1911 |
Republican |
| Frederick W. Plaisted | Jan 4, 1911 Jan 1, 1913 |
Democratic |
| William T. Haines | Jan 1, 1913 Jan 6, 1915 |
Republican |
| Oakley C. Curtis | Jan 6, 1915 Jan 3, 1917 |
Democratic |
| Carl E. Milliken | Jan 3, 1917 Jan 5, 1921 |
Republican |
| Frederic H. Parkhurst | Jan 5, 1921 Jan 31, 1921 |
Republican |
| Percival P. Baxter | Jan 31, 1921 Jan 7, 1925 |
Republican |
| Ralph Owen Brewster | Jan 7, 1925 Jan 2, 1929 |
Republican |
| William Tudor Gardiner | Jan 2, 1929 Jan 4, 1933 |
Republican |
| Louis J. Brann | Jan 4, 1933 Jan 6, 1937 |
Democratic |
| Lewis O. Barrows | Jan 6, 1937 Jan 1, 1941 |
Republican |
| Sumner Sewall | Jan 1, 1941 Jan 3, 1945 |
Republican |
| Horace A. Hildreth | Jan 3, 1945 Jan 5, 1949 |
Republican |
| Frederick G. Payne | Jan 5, 1949 Dec 24, 1952 |
Republican |
| Nathaniel M. Haskell | Jan 6, 1953 Jan 7, 1953 |
Republican |
| Burton M. Cross | Jan 7, 1953 Jan 5, 1955 |
Republican |
| Edmund Muskie | Jan 5, 1955 Jan 2, 1959 |
Democratic |
| Robert Haskell | Jan 2, 1959 Jan 7, 1959 |
Republican |
| Clinton Clauson | Jan 7, 1959 Dec 30, 1959 |
Democratic |
| John H. Reed | Dec 30, 1959 Jan 5, 1967 |
Republican |
| Kenneth M. Curtis | Jan 5, 1967 Jan 2, 1975 |
Democratic |
| James B. Longley | Jan 2, 1975 Jan 3, 1979 |
Independent |
| Joseph E. Brennan | Jan 3, 1979 Jan 7, 1987 |
Democratic |
| John R. McKernan Jr. | Jan 7, 1987 Jan 5, 1995 |
Republican |
| Angus King | Jan 5, 1995 Jan 8, 2003 |
Independent |
| John Baldacci | Jan 8, 2003 Jan 5, 2011 |
Democratic |
| Paul R. LePage | Jan 5, 2011 Incumbent |
Republican |
