United States congressional delegations from Maine
These are tables of congressional delegations from Maine to the United States Senate and United States House of Representatives. Maine became a state on March 15, 1820 and elects Senators to Classes 1 and 2. Maine's current U.S Senators are Republican Susan Collins and Independent Angus King. For organizational purposes King caucuses with the Democratic Party, making Maine one of the nine states to have a split United States Senate delegation. Maine has been allotted 2 seats in the U.S House of Representatives since the 1960 Census, both of which are held by Democrats as of 2019.
Senate
| Class 1 | Congress | Class 2 |
| John Holmes | ' | John Chandler |
| ' | - | - |
| ' | - | - |
| John Holmes | ' | John Chandler |
| Albion K. Parris | ' | - |
| John Holmes | ' | - |
| John Holmes | ' | Peleg Sprague |
| John Holmes | ' | - |
| Ether Shepley | ' | - |
| John Ruggles | ' | - |
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| ' | Judah Dana | - |
| Reuel Williams | ' | John Ruggles |
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| ' | George Evans | - |
| John Fairfield | ' | - |
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| ' | James W. Bradbury | - |
| ' | Wyman B.S. Moor | - |
| ' | Hannibal Hamlin | - |
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| ' | William Pitt Fessenden | - |
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| ' | Amos Nourse | - |
| Hannibal Hamlin | ' | William Pitt Fessenden |
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| ' | Lot Myrick Morrill | - |
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| ' | Nathan A. Farwell | - |
| ' | William Pitt Fessenden | - |
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| Hannibal Hamlin | ' | - |
| Lot Myrick Morrill | ' | - |
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| ' | James G. Blaine | - |
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| Eugene Hale | ' | - |
| William P. Frye | ' | - |
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| Charles F. Johnson | ' | - |
| Obadiah Gardner | ' | - |
| ' | Edwin C. Burleigh | - |
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| ' | Bert M. Fernald | - |
| Frederick Hale | ' | - |
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| ' | Arthur R. Gould | - |
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| ' | Wallace H. White, Jr. | - |
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| Ralph Owen Brewster | ' | - |
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| ' | Margaret Chase Smith | - |
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| Frederick G. Payne | ' | - |
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| Edmund Muskie | ' | - |
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| ' | William Hathaway | - |
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| ' | William Cohen | - |
| ' | George J. Mitchell | - |
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| Olympia Snowe | ' | - |
| ' | Susan Collins | - |
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| Angus King | ' | - |
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House of Representatives
| District | Representative | Party | CPVI | Incumbency | District Map |
| 1st | Chellie Pingree | Democratic | D+8 | January 3, 2009 - Present | |
| 2nd | Jared Golden | Democratic | R+2 | January 3, 2019 - Present |