Massachusetts's congressional districts

File:Massachusetts congressional districts large.pdf

The Commonwealth's districts since 2013

Massachusetts is currently divided into 9 congressional districts, each represented by a member of the United States House of Representatives. After the 2010 census, the number of Massachusetts' seats was decreased from 10 to 9 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, and also caused a major shift in how the state's congressional districts are currently drawn.

Current districts and representatives

List of members of the Massachusettsan United States House delegation, their terms, their district boundaries, and the districts' political rating according to the CPVI. The delegation has a total of 9 members, all of whom are members of the Democratic party.

District	Representative	Party	CPVI	Incumbency	District map
1st	Richard Neal (D-Springfield)	Democratic	D+14	January 3, 1989 – present
2nd	Jim McGovern (D-Worcester)	Democratic	D+10	January 3, 1997 – present
3rd	Niki Tsongas (D-Lowell)	Democratic	D+8	October 16, 2007 – present
4th	Joseph Kennedy III (D-Brookline)	Democratic	D+11	January 3, 2013 – present
5th	Katherine Clark (D-Melrose)	Democratic	D+16	December 10, 2013 – present	350px
6th	Seth Moulton (D-Salem)	Democratic	D+7	January 3, 2015 – present
7th	Mike Capuano (D-Somerville)	Democratic	D+29	January 3, 1999 – present
8th	Stephen Lynch (D-Boston)	Democratic	D+9	October 16, 2001 – present
9th	William Keating (D-Bourne)	Democratic	D+8	January 3, 2011 – present

Enumeration trends

After the 1890 Census and starting with the Fifty-third United States Congress in 1893, Massachusetts 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.

History of Apportionment

Census Year	Resident Population	Number of Representatives	Constituents per Representative (Massachusetts)	Constituents per Representative (nationally)
1789	No Census	8	N/A	N/A
1790	378,787	14	27,056	30,000
1800	422,845	17	24,873	33,000
1810	472,040	20	23,602	35,000
1820	523,287	13	40,253	40,000
1830	610,408	12	50,867	47,700
1840	737,699	10	73,770	70,680
1850	994,514	11	90,410	93,425
1860	1,231,066	10	123,107	127,381
1870	1,457,351	11	132,486	131,425
1880	1,783,085	12	148,590	151,912
1890	2,238,947	13	172,227	173,901
1900	2,805,346	14	200,381	194,182
1910	3,366,416	16	210,401	212,407
1920	3,852,356	16	N/A	N/A
1930	4,249,614	15	283,307	280.675
1940	4,316,721	14	308,337	301,164
1950	4,690,514	14	335,037	344,587
1960	5,148,578	12	429,048	410,481
1970	5,689,170	12	477,223	469,088
1980	5,737,093	11	521,549	519,235
1990	6,016,425	10	602,905	572,466
2000	6,349,097	10	635,557	646,952
2010	6,547,629	9	728,849	710,767

Source: U.S. Census Bureau.

Historical and present district boundaries

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

Year	Statewide map	Boston highlight
1973 – 1982
1983 – 1992
1993 – 2002
2003 – 2013
Since 2013

• 

  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.

See also

• List of United States congressional districts

External links

• Massachusetts Congressional Districts map, 2004