Massachusetts's 9th congressional district is located in easternMassachusetts. It is represented by DemocratBill Keating. With aCook Partisan Voting Index rating of D+6, it is the least Democratic district in Massachusetts, a state with an all-Democratic congressional delegation.[2]
Redistricting after the 2010 census eliminatedMassachusetts's 10th congressional district; the 9th covers much of the old 10th's eastern portion. The district also added somePlymouth County communities from the old 4th district, and someBristol County communities from the old 3rd and 4th districts. It eliminated a few easternmostNorfolk County communities and northernmost Plymouth County communities.
From 1963 to 2013, the 9th covered most of southernBoston, and in its latter years, it included many of Boston's southern suburbs. Most of that territory is now the8th district.
For the118th and successive Congresses (based on redistricting following the2020 census), the district contains all or portions of six counties and 49 municipalities:[4]
1849: "The towns in the County of Plymouth, excepting Abington, Hingham, Hull, North Bridgewater, Rochester, and Wareham; and all the towns in the County of Bristol, excepting Dartmouth, Fairhaven, and New Bedford."[5]
1862: "The towns of Ashburnham, Auburn, Barre, Boylston, Brookfield, Charlton, Clinton, Douglas, Dudley, Fitchburg, Gardner, Grafton, Holden, Hubbardston, Lancaster, Leicester, Leominster, Millbury, New Braintree, North Brookfield, Oakham, Oxford, Paxton, Princeton, Rutland, Shrewsbury, Southbridge, Spencer, Sterling, Sturbridge, Sutton, Templeton, Webster, West Boylston, Westminster, and Winchendon, and the city of Worcester, in the county of Worcester."[6]
1953: "Counties: Barnstable, Dukes, and Nantucket. Bristol County: City of Fall River, ward 6, and city of New Bedford; towns of Acushnet, Dartmouth, Fairhaven, and Westport. Norfolk County: Town of Cohasset. Plymouth County: Towns of Abington, Bridgewater, Carver, Duxbury, East Bridgewater, Halifax, Hanover, Hanson, Hingham, Hull, Kingston, Lakeville, Marion, Marshfield, Mattapoisett, Middleborough, Norwell, Pembroke, Plymouth, Plympton, Rochester, Rockland, Scituate, Wareham, West Bridgewater, and Whitman."[10]
1977: "Norfolk County: Towns of Canton, Dedham, Dover, Needham, Norwood, Walpole, and Westwood. Suffolk County: City of Boston: Wards 3, 4, 6—14, 19, and 20."[12]
1985: "Bristol County: City of Taunton. Towns of Dighton, Easton, and Raynham. Norfolk County: Towns of Canton, Dedham, Needham, Norwood, Stoughton, and Westwood. Plymouth County: Towns of Bridgewater, Halifax, Lakeville, and Middleborough. Suffolk County: City of Boston: Wards 3, 6–14, 19, and 20."[13]
^Francis M. Cox (1893)."Massachusetts".Official Congressional Directory: Fifty-Third Congress (2nd ed.). Washington DC: Government Printing Office.hdl:2027/mdp.39015022758133.
^"Massachusetts".Official Congressional Directory: 64th Congress. 1991/1992- : S. Pub. (2nd ed.). Washington DC: Government Printing Office. 1916.hdl:2027/uc1.l0075858456.
^"Massachusetts",1977 Official Congressional Directory: 95th Congress, 1991/1992- : S. Pub., Washington DC: U.S. Government Printing Office, 1977,hdl:2027/uc1.31158002391372
^"Massachusetts".1985–1986 Official Congressional Directory: 99th Congress. 1991/1992- : S. Pub. Washington DC: Government Printing Office. 1985.hdl:2027/uc1.31158013115752.
^"Massachusetts".Congressional Directory for the Second Session of the Thirty-Seventh Congress. Washington DC: House of Representatives. 1861.
^Ben. Perley Poore (1869)."Massachusetts".Congressional Directory for the First Session of the Forty-First Congress (2nd ed.). Washington DC: Government Printing Office.hdl:2027/nyp.33433081796686.
^Ben. Perley Poore (1878)."Massachusetts".Congressional Directory: 45th Congress (3rd ed.). Washington DC: Government Printing Office.ISBN9780160411762.{{cite book}}:ISBN / Date incompatibility (help)
^L.A. Coolidge (1897)."Massachusetts".Official Congressional Directory: Fifty-Fifth 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: 75th Congress (2nd ed.). Washington DC: Government Printing Office. 1938.
^"Massachusetts".Official Congressional Directory: 90th Congress. Washington DC: Government Printing Office. 1968.
^"Massachusetts".1991–1992 Official Congressional Directory: 102nd Congress. Washington DC: Government Printing Office. 1991.
The at-large and 10th–20th districts are obsolete. The 14th–20th districts moved toMaine in 1820, and the 14th–16th districts were later restored in Massachusetts.