Massachusetts's congressional districts

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. It is the most populous state in which all members are from the same party.

Source: U.S. Census Bureau.

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 first district 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.

Table of United States congressional district boundary maps in the State of Massachusetts, presented chronologically.^[5] All redistricting events that took place in Massachusetts between 1973 and 2013 are shown.

•  
  The Commonwealth's districts, as of 1796.
•  
  The Commonwealth's districts, as of 1842.
•  
  The Commonwealth's districts, as of 1891.
•  
  The Commonwealth's districts, as of 1901.

• List of United States congressional districts

• "State Apportionment". Massachusetts Register ... for 1843. Boston: Loring.
• John Hayward (1849). "Congressional Districts". Gazetteer of Massachusetts. Boston: J.P. Jewett & Co.
• "Massachusetts". Congressional Directory for the Second Session of the Thirty-Seventh Congress. Washington DC: House of Representatives. 1861.
• "Congressional Districts". Massachusetts Register 1862. Boston: Adams, Sampson, & Co.
• Ben. Perley Poore (1869). "Massachusetts". Congressional Directory for the First Session of the Forty-First Congress (2nd ed.). Washington DC: Government Printing Office.
• Ben. Perley Poore (1878). "Massachusetts". Congressional Directory: 45th Congress (3rd ed.). Washington DC: Government Printing Office.
• Ben. Perley Poore (1882). "Massachusetts". Congressional Directory: 47th Congress (3rd ed.). Washington DC: Government Printing Office.
• Ben. Perley Poore (1884). "Massachusetts". Congressional Directory: Forty-Eighth Congress (2nd ed.). Washington DC: Government Printing Office.
• W.H. Michael (1889). "Massachusetts". Official Congressional Directory: Fiftieth Congress (2nd ed.). Washington DC: Government Printing Office.
• Francis M. Cox (1893). "Massachusetts". Official Congressional Directory: Fifty-Third Congress (2nd ed.). Washington DC: Government Printing Office.
• L.A. Coolidge (1897). "Massachusetts". Official Congressional Directory: Fifty-Fifth Congress. Washington DC: Government Printing Office.

• "Massachusetts". Official Congressional Directory: Fifty-Sixth Congress (2nd ed.). Washington DC: Government Printing Office. 1900.
• A.J. Halford (1903). "Massachusetts". Official Congressional Directory: Fifty-Eighth Congress. Washington DC: Government Printing Office.
• A.J. Halford (1909). "Massachusetts". Congressional Directory: 60th Congress (2nd ed.). Washington DC: Government Printing Office.
• "Massachusetts". Official Congressional Directory: 64th Congress (2nd ed.). Washington DC: Government Printing Office. 1916.
• Commonwealth of Massachusetts (1921), "Population of Congressional Districts", Population of Massachusetts as determined by the fourteenth census of the United States 1920, Boston: Wright & Potter
• "Massachusetts". Official Congressional Directory: 68th Congress (3rd ed.). Washington DC: Government Printing Office. 1924.
• "Massachusetts". Official Congressional Directory: 70th Congress. Washington DC: Government Printing Office. 1927.
• "Massachusetts". Official Congressional Directory: 73rd Congress (2nd ed.). Washington DC: Government Printing Office. 1934.
• "Massachusetts". Official Congressional Directory: 75th Congress (2nd ed.). Washington DC: Government Printing Office. 1938.
• Commonwealth of Massachusetts (1941), "Population of Congressional Districts", Population of Massachusetts as determined by the sixteenth census of the United States, 1940, Boston: Wright & Potter, OCLC 10056477, House No. 2849
• "Massachusetts". Official Congressional Directory: 80th Congress. Washington DC: Government Printing Office. 1947.
• "Massachusetts". Official Congressional Directory: 81st Congress. Washington DC: Government Printing Office. 1949.
• "Massachusetts". Official Congressional Directory: 83rd Congress. Washington DC: Government Printing Office. 1953.
• "Massachusetts". Official Congressional Directory: 85th Congress. Washington DC: Government Printing Office. 1958.
• "Massachusetts". Congressional Directory: 87th Congress. Washington DC: Government Printing Office. 1961.
• "Massachusetts". Official Congressional Directory: 88th Congress. Washington DC: Government Printing Office. 1963.
• "Massachusetts". Official Congressional Directory: 90th Congress. Washington DC: Government Printing Office. 1968.
• "Massachusetts". Official Congressional Directory: 92nd Congress. Washington DC: Government Printing Office. 1972.
• "Massachusetts". Official Congressional Directory: 93rd Congress. Washington DC: Government Printing Office. 1973.
• "Massachusetts", 1977 Official Congressional Directory: 95th Congress, Washington DC: U.S. Government Printing Office, 1977
• "Massachusetts". 1985-1986 Official Congressional Directory: 99th Congress. Washington DC: Government Printing Office. 1985.
• "Massachusetts". 1991-1992 Official Congressional Directory: 102nd Congress. Washington DC: Government Printing Office. 1991.
• "Congressional Biographies: Massachusetts", Congressional Directory for the 105th Congress (1997-1998), Washington DC: U.S. Government Printing Office, 1997

• "Congressional Biographies: Massachusetts", Congressional Directory for the 107th Congress (2001 - 2002), Washington DC: U.S. Government Printing Office, 2001
• "Massachusetts", 2003-2004 Official Congressional Directory for the 108th Congress, Washington DC: U.S. Government Printing Office, 2003

• Massachusetts Congressional Districts map, 2004