Massachusetts's 9th congressional district

Massachusetts's 9th congressional district is located in eastern Massachusetts. It is represented by Democrat William R. Keating. With a Cook Partisan Voting Index rating of D+6, it is the least Democratic district in Massachusetts, a state with an all-Democratic congressional delegation.

Redistricting after the 2010 census eliminated Massachusetts's 10th congressional district; the 9th covers much of the old 10th's eastern portion. The district also added some Plymouth County communities from the old 4th district, and some Bristol County communities from the old 3rd and 4th districts. It eliminated a few easternmost Norfolk County communities and northernmost Plymouth County communities.

From 1963 to 2013, the 9th covered most of southern Boston, and in its latter years, it included many of Boston's southern suburbs. Most of that territory is now the 8th district.

Cities and towns in the district

 * All of Barnstable County, Dukes County, and Nantucket County.

The Town of Cohasset, in Norfolk County.

The following municipalities in Bristol County:
 * The City of New Bedford, and the Towns of Acushnet, Dartmouth, Fairhaven, Raynham (portions), and Westport.

The following municipalities in Plymouth County:
 * The City of Bridgewater, and the Towns of Carver, Duxbury, Halifax, Hanover, Hanson, Kingston, Marion, Marshfield, Mattapoisett, Middleborough, Norwell, Pembroke, Plymouth, Plympton, Rochester, Rockland, Scituate, and Wareham.

1840s
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."

1860s
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."

1890s
1893: Boston, Wards 1, 2, 3, 6, 7, 8, 12, 16, 17, 18, 19 (Precincts 2, 3, 4, 6); Winthrop.

1910s
1916: In Middlesex County: Everett, Malden, Somerville. In Suffolk County: Chelsea, Revere, Winthrop.

1950s
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."

1960s
1963: Boston (Wards 4- 17, 19, 20).

1970s
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."

1980s
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."

2003–2013
In Bristol County:
 * Easton.

In Norfolk County:
 * Avon, Braintree, Canton, Dedham, Holbrook, Medfield, Milton, Needham, Norwood, Randolph, Stoughton, Walpole, Westwood.

In Plymouth County:
 * Bridgewater, Brockton, East Bridgewater, Hanson, Precincts 1 and 3, West Bridgewater, Whitman.

In Suffolk County:
 * Boston, Ward 3, Precincts 5 and 6; Ward 5, Precincts 3–5, 11; Ward 6; Ward 7, Precincts 1–9; Ward 13, Precincts 3, 7–10; Ward 15, Precinct 6; Ward 16, Precincts 2, 4–12; Ward 17, Precincts 4, 13, 14; Ward 18, Precincts 9–12, 16–20, 22, 23; Ward 19, Precincts 2, 7, 10–13; Ward 20.

Maps

 * Map of Massachusetts's 9th Congressional District, via Massachusetts Secretary of the Commonwealth

Election results

 * CNN.com 2004 election results
 * CNN.com 2006 election results