This was the first election in Massachusetts after the separation of the former District of Maine as the new State of Maine, taking the old 14th – 20th districts with it.
Massachusetts elected its members November 6, 1820.
Massachusetts had a majority requirement for election, which was not met in the 2nd district necessitating two additional elections on January 8, 1821, and April 16, 1821, after the term began but before the new Congress convened.
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