Massachusetts' 9th Congressional District

Massachusetts' 9th Congressional District

Incumbent

Bill Keating

Assumed office: January 3, 2013

Massachusetts' 9th Congressional District in the United States House of Representatives is represented by Bill Keating (D).

As of the 2020 Census, Massachusetts representatives represented an average of 781,497 residents. After the 2010 Census, each member represented 728,849 residents.

Elections

2024

See also: Massachusetts' 9th Congressional District election, 2024

Massachusetts' 9th Congressional District election, 2024 (September 3 Democratic primary)

Massachusetts' 9th Congressional District election, 2024 (September 3 Republican primary)

General election

General election for U.S. House Massachusetts District 9

Incumbent Bill Keating defeated Dan Sullivan in the general election for U.S. House Massachusetts District 9 on November 5, 2024.

		Candidate	%	Votes
✔		Bill Keating (D)	56.4	251,931
		Dan Sullivan (R)	43.4	193,822
		Other/Write-in votes	0.1	642

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 446,395
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary election

Democratic primary for U.S. House Massachusetts District 9

Incumbent Bill Keating advanced from the Democratic primary for U.S. House Massachusetts District 9 on September 3, 2024.

		Candidate	%	Votes
✔		Bill Keating	99.6	71,814
		Other/Write-in votes	0.4	275

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 72,089
= candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary election

Republican primary for U.S. House Massachusetts District 9

Dan Sullivan advanced from the Republican primary for U.S. House Massachusetts District 9 on September 3, 2024.

		Candidate	%	Votes
✔		Dan Sullivan	98.5	36,888
		Other/Write-in votes	1.5	549

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 37,437
= candidate completed the Ballotpedia Candidate Connection survey.
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2022

See also: Massachusetts' 9th Congressional District election, 2022

General election

General election for U.S. House Massachusetts District 9

Incumbent Bill Keating defeated Jesse Brown in the general election for U.S. House Massachusetts District 9 on November 8, 2022.

		Candidate	%	Votes
✔		Bill Keating (D)	59.2	197,823
		Jesse Brown (R)	40.8	136,347
		Other/Write-in votes	0.0	150

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 334,320
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary election

Democratic primary for U.S. House Massachusetts District 9

Incumbent Bill Keating advanced from the Democratic primary for U.S. House Massachusetts District 9 on September 6, 2022.

		Candidate	%	Votes
✔		Bill Keating	99.7	81,530
		Other/Write-in votes	0.3	228

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 81,758
= candidate completed the Ballotpedia Candidate Connection survey.
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Withdrawn or disqualified candidates

• Grant Smith Ellis (D)

Republican primary election

Republican primary for U.S. House Massachusetts District 9

Jesse Brown defeated Dan Sullivan in the Republican primary for U.S. House Massachusetts District 9 on September 6, 2022.

		Candidate	%	Votes
✔		Jesse Brown	51.3	24,384
		Dan Sullivan	48.4	23,002
		Other/Write-in votes	0.2	113

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 47,499
= candidate completed the Ballotpedia Candidate Connection survey.
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Withdrawn or disqualified candidates

• Mark Littles (R)

2020

See also: Massachusetts' 9th Congressional District election, 2020

General election

General election for U.S. House Massachusetts District 9

Incumbent Bill Keating defeated Helen Brady and Michael Manley in the general election for U.S. House Massachusetts District 9 on November 3, 2020.

		Candidate	%	Votes
✔		Bill Keating (D)	61.3	260,262
		Helen Brady (R)	36.3	154,261
		Michael Manley (Coach Team America)	2.3	9,717
		Other/Write-in votes	0.1	361

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 424,601
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary election

Democratic primary for U.S. House Massachusetts District 9

Incumbent Bill Keating advanced from the Democratic primary for U.S. House Massachusetts District 9 on September 1, 2020.

		Candidate	%	Votes
✔		Bill Keating	99.4	125,608
		Other/Write-in votes	0.6	751

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 126,359
= candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary election

Republican primary for U.S. House Massachusetts District 9

Helen Brady advanced from the Republican primary for U.S. House Massachusetts District 9 on September 1, 2020.

		Candidate	%	Votes
✔		Helen Brady	99.0	36,238
		Other/Write-in votes	1.0	378

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 36,616
= candidate completed the Ballotpedia Candidate Connection survey.
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2018

See also: Massachusetts' 9th Congressional District election, 2018

General election

General election for U.S. House Massachusetts District 9

Incumbent Bill Keating defeated Peter Tedeschi in the general election for U.S. House Massachusetts District 9 on November 6, 2018.

		Candidate	%	Votes
✔		Bill Keating (D)	59.4	192,347
	Submit photo	Peter Tedeschi (R)	40.6	131,463
		Other/Write-in votes	0.0	118

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 323,928
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary election

Democratic primary for U.S. House Massachusetts District 9

Incumbent Bill Keating defeated Bill Cimbrelo in the Democratic primary for U.S. House Massachusetts District 9 on September 4, 2018.

		Candidate	%	Votes
✔		Bill Keating	85.4	50,113
		Bill Cimbrelo	14.6	8,571

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	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 58,684
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
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Republican primary election

Republican primary for U.S. House Massachusetts District 9

Peter Tedeschi advanced from the Republican primary for U.S. House Massachusetts District 9 on September 4, 2018.

		Candidate	%	Votes
✔	Submit photo	Peter Tedeschi	100.0	35,911

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 35,911
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
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2016

See also: Massachusetts' 9th Congressional District election, 2016

Heading into the election, Ballotpedia rated this race as safely Democratic. Incumbent William Keating (D) defeated Mark Alliegro (R), Paul Harrington (I), Anna Grace Raduc (I), and Chris Cataldo (I) in the general election on November 8, 2016. Alliegro defeated Tom O'Malley in the Republican primary, while Keating faced no challenger in the Democratic primary.

U.S. House, Massachusetts District 9 General Election, 2016

Party		Candidate	Vote %	Votes
	Democratic	William Keating Incumbent	55.7%	211,790
	Republican	Mark Alliegro	33.6%	127,803
	Independent	Paul Harrington	6.9%	26,233
	Independent	Chris Cataldo	2.2%	8,338
	Independent	Anna Grace Raduc	1.4%	5,320
	N/A	Write-in	0.1%	411
Total Votes				379,895
Source: Massachusetts Secretary of the Commonwealth

U.S. House, Massachusetts District 9 Republican Primary, 2016

Candidate	Vote %	Votes
Mark Alliegro	62%	12,467
Tom O'Malley	38%	7,632
Total Votes		20,099
Source: Massachusetts Secretary of the Commonwealth

2014

See also: Massachusetts' 9th Congressional District elections, 2014

The 9th Congressional District of Massachusetts held an election for the U.S. House of Representatives on November 4, 2014. Incumbent William Keating (D) defeated challenger John Chapman (R) in the general election.

U.S. House, Massachusetts District 9 General Election, 2014

Party		Candidate	Vote %	Votes
	Democratic	Bill Keating Incumbent	53.1%	140,413
	Republican	John Chapman	43.5%	114,971
	Write-in	Other	0.1%	157
	Blank	None	3.4%	9,013
Total Votes				264,554
Source: Massachusetts Secretary of State Official Results

General election candidates

• William Keating - Incumbent a
• John Chapman

September 9, 2014, primary results
Democratic Primary

• William Keating - Incumbent a

Republican Primary

• John Chapman - Former Romney administration official a
• Vincent Anthony Cogliano, Jr. - Chairman of Plymouth County GOP PAC
• Mark Alliegro - Cell biologist
• Daniel Shores

2012

See also: Massachusetts' 9th Congressional District elections, 2012

The 9th District of Massachusetts held an election for the U.S. House of Representatives on November 6, 2012. Incumbent Stephen Lynch (D) ran for the 8th District seat due to redistricting in 2012. The now defunct 10th District incumbent William Keating won the 9th District seat. He defeated Christopher Sheldon (R) and Daniel Botelho (I) in the general election.

U.S. House, Massachusetts District 9 General Election, 2012

Party		Candidate	Vote %	Votes
	Democratic	William Keating Incumbent	55.1%	212,754
	Republican	Christopher Sheldon	30.2%	116,531
	Independent	Daniel Botelho	8.5%	32,655
	N/A	All Others	0.1%	465
	N/A	Blank Votes	6.1%	23,394
Total Votes				385,799
Source: Massachusetts Secretary of State "Return of Votes"

2010
On November 2, 2010, Stephen Lynch won re-election to the United States House. He defeated Vernon Harrison (R) and Philip Dunkelbarger (I) in the general election.

U.S. House, Massachusetts District 9 General Election, 2010
Party		Candidate	Vote %	Votes
	Democratic	Stephen Lynch incumbent	68.3%	157,071
	Republican	Vernon Harrison	26.1%	59,965
	Independent	Philip Dunkelbarger	5.5%	12,572
	None	Other	0.2%	356
Total Votes				229,964

2008
On November 4, 2008, Stephen Lynch won re-election to the United States House. He ran unopposed in the general election.

U.S. House, Massachusetts District 9 General Election, 2008
Party		Candidate	Vote %	Votes
	Democratic	Stephen Lynch incumbent	76.3%	242,166
	None	Other	1%	3,128
	None	Blank/Scattering	22.7%	72,126
Total Votes				317,420

2006
On November 7, 2006, Stephen Lynch won re-election to the United States House. He defeated Jack Robinson (R) in the general election.

U.S. House, Massachusetts District 9 General Election, 2006
Party		Candidate	Vote %	Votes
	Democratic	Stephen Lynch incumbent	72.2%	169,420
	Republican	Jack Robinson	20.1%	47,114
	N/A	Other	0.2%	502
	N/A	Blank/Scattering	7.4%	17,469
Total Votes				234,505

2004
On November 2, 2004, Stephen Lynch won re-election to the United States House. He ran unopposed in the general election.

U.S. House, Massachusetts District 9 General Election, 2004
Party		Candidate	Vote %	Votes
	Democratic	Stephen Lynch incumbent	73.3%	218,167
	N/A	All Others	0.7%	2,145
	N/A	Blank/Scattering	26%	77,514
Total Votes				297,826

2002
On November 5, 2002, Stephen Lynch won re-election to the United States House. He ran unopposed in the general election.

U.S. House, Massachusetts District 9 General Election, 2002
Party		Candidate	Vote %	Votes
	Democratic	Stephen Lynch incumbent	71.3%	168,055
	N/A	Other	0.4%	921
	N/A	Blank/Scattering	28.4%	66,890
Total Votes				235,866

2001
On October 10, 2001, Stephen Lynch won election to the United States House. He defeated Jo Ann Sprague (R), Susan C. Gallagher-Long (Conservative) and Brock Satter (Socialist Workers) in the special election.

U.S. House, Massachusetts District 9 General Election, 2001
Party		Candidate	Vote %	Votes
	Democratic	Stephen Lynch	65%	44,943
	Republican	Jo Ann Sprague	32.7%	22,645
	Conservative	Susan C. Gallagher-Long	1.2%	827
	Socialist Workers	Brock Satter	0.7%	510
	N/A	Other	0.4%	253
Total Votes				69,178

2000
On November 7, 2000, Joe Moakley won re-election to the United States House. He defeated Janet E. Jeghelian (R) and David A. Rosa (Unenrolled) in the general election.

U.S. House, Massachusetts District 9 General Election, 2000
Party		Candidate	Vote %	Votes
	Democratic	Joe Moakley incumbent	71.2%	193,020
	Republican	Janet E. Jeghelian	18%	48,672
	Unenrolled	David A. Rosa	2.6%	6,998
	N/A	Other	0%	66
	N/A	Blank/Scattering	8.2%	22,313
Total Votes				271,069

Redistricting

2020-2021

See also: Redistricting in Massachusetts after the 2020 census

Massachusetts Gov. Charlie Baker (R) signed the state’s new congressional maps into law on November 22, 2021. Both chambers of the legislature approved the new maps on November 17, 2021. The state House approved the plan by a vote of 151-8 with 127 Democrats, 23 Republicans, and one independent voting in favor and six Republicans and two Democrats voting against. The state Senate approved the new congressional maps 26-13, with 24 Democrats and two Republicans voting in favor and 12 Democrats and one Republican opposed. In the previous redistricting cycle, Massachusetts adopted its congressional map almost ten years ago to the day—on Nov. 21, 2011. This map took effect for Massachusetts’ 2022 congressional elections.

As Nik DeCosta-Klipa wrote at Boston.com after the legislature approved the maps, "unlike the partisan redistricting fights happening across much of the country, the map has been an argument among Democrats in reliably-blue Massachusetts. While the proposal does not dramatically alter the general contours of the state’s nine Democrat-held House districts...some of the tweaks around the edges have elicited vocal — to some, surprising — outcry." State Sen. Will Brownsberger (D), chair of the Special Joint Committee on Redistricting, said that he was unhappy that some members objected to the new maps. He said, "It’s always my goal to assure that every single senator is satisfied with the results of the redistricting process."

How does redistricting in Massachusetts work? In Massachusetts, congressional and state legislative district lines are drawn by the state legislature. The lines drawn by the state legislature are subject to veto by the governor.

State statutes require that state legislative district boundaries be contiguous and "reasonably preserve counties, towns, and cities intact, where otherwise possible." There are no such requirements in place for congressional districts.

Massachusetts District 9
until January 2, 2023

Click a district to compare boundaries.

Massachusetts District 9
starting January 3, 2023

Click a district to compare boundaries.

2010-2011

This is the 9th Congressional District of Massachusetts after the 2001 redistricting process.

See also: Redistricting in Massachusetts after the 2010 census

In 2011, the Massachusetts State Legislature re-drew the congressional districts based on updated population information from the 2010 census.

District analysis

See also: The Cook Political Report's Partisan Voter Index

See also: FiveThirtyEight's elasticity scores

2026

Heading into the 2026 elections, based on results from the 2024 and 2020 presidential elections, the Cook Partisan Voter Index for this district is D+6. This meant that in those two presidential elections, this district's results were 6 percentage points more Republican than the national average. This made Massachusetts' 9th the 150th most Republican district nationally.

2024

Heading into the 2024 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+6. This meant that in those two presidential elections, this district's results were 6 percentage points more Democratic than the national average. This made Massachusetts' 9th the 157th most Democratic district nationally.

Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have defeated Donald Trump (R) 58.2%-40.0%.

2022

Heading into the 2022 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+6. This meant that in those two presidential elections, this district's results were 6 percentage points more Democratic than the national average. This made Massachusetts' 9th the 156th most Democratic district nationally.

Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have received 58.2% of the vote in this district and Donald Trump (R) would have received 40.0%.

2018

Heading into the 2018 elections, based on results from the 2016 and 2012 presidential elections, the Cook Partisan Voter Index for this district was D+4. This meant that in those two presidential elections, this district's results were 4 percentage points more Democratic than the national average. This made Massachusetts' 9th Congressional District the 174th most Democratic nationally.

FiveThirtyEight's September 2018 elasticity score for states and congressional districts measured "how sensitive it is to changes in the national political environment." This district's elasticity score was 1.20. This means that for every 1 point the national political mood moved toward a party, the district was expected to move 1.20 points toward that party.

See also

\*Redistricting in Massachusetts

• Massachusetts' 9th Congressional District election, 2024
• Massachusetts' 9th Congressional District election, 2022
• Massachusetts' 9th Congressional District election, 2020
• Massachusetts' 9th Congressional District election, 2018

External links

• GovTrack District 9

Footnotes

[show]

Massachusetts' current delegation to the United States Congress

Senators

Edward Markey (D)

Elizabeth Warren (D)

Representatives

District 1

Richard Neal (D)

District 2

Jim McGovern (D)

District 3

Lori Trahan (D)

District 4

Jake Auchincloss (D)

District 5

Katherine Clark (D)

District 6

Seth Moulton (D)

District 7

Ayanna Pressley (D)

District 8

Stephen Lynch (D)

District 9

Bill Keating (D)

Democratic Party (11)