Massachusetts's congressional districts

U. S. House districts in the state of Massachusetts

Massachusetts is currently divided into nine congressional districts, each represented by a member of the United States House of Representatives. After the 2010 census, the number of seats in Massachusetts was decreased from 10 to nine, due to the State's low growth in population since the year 2000. This mandatory redistricting after the 2010 census eliminated Massachusetts's 10th congressional district, as well as causing a major shift in how the state's congressional districts are currently drawn.

List of members of the United States House delegation from Massachusetts in the 118th Congress, their terms, their district boundaries, and the district political ratings, according to the CPVI. The delegation has a total of nine members, all of whom are members of the Democratic party. Current U. S. representatives from Massachusetts District Member Party Incumbent since CPVI District map Richard Neal January 3, 1989 Jim McGovern January 3, 1997 Lori Trahan January 3, 2019 Jake Auchincloss January 3, 2021 Katherine Clark December 12, 2013 Seth Moulton January 3, 2015 Ayanna Pressley January 3, 2019 Stephen Lynch October 16, 2001 Bill Keating January 3, 2011

After the 1890 census, and starting with the 53rd United States Congress in 1893, Massachusetts's congressional districts were numbered west to east, with the in the west (Berkshire County) and the highest numbered district at Cape Cod. Before then, the district numeration was not as consistent; sometimes running east to west, other times going counter clockwise around Boston.