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Election 2018 Results

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2018 US House elections in Massachusetts

Massachusetts elected 9 members of the House in 2018: Democrats won 9 seats and Republicans 0.

The closest was the 9th district, decided by 18.8 points: Bill Keating (Democrat) beat Peter D. Tedeschi (Republican), 59.4% to 40.6%, a margin of 18.8 points and 60,884 votes.

In the House vote by county, Democrats led in 14 of the 14 counties. The largest, Middlesex, cast 644,854 votes and went to the Democrat by 51.1 points. The closest was Nantucket, where 1,661 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Every district

DistrictDemocratVotesRepublicanVotesOthersMargin
1 Richard E. Neal211,790 (97.6%) none 5,110 D+97.6
2 James P. McGovern191,332 (67.2%) Tracy Lyn Lovvorn93,391 (32.8%) 170 D+34.4
3 Lori Loureiro Trahan173,175 (62.0%) Rick Green93,445 (33.5%) 12,707 D+28.5
4 Joseph P. Kennedy, III245,289 (97.7%) none 5,727 D+97.7
5 Katherine M. Clark236,243 (75.9%) John Hugo74,856 (24.0%) 225 D+51.8
6 Seth W. Moulton217,703 (65.2%) Joseph S. Schneider104,798 (31.4%) 11,474 D+33.8
7 Ayanna S. Pressley216,559 (98.3%) none 3,852 D+98.3
8 Stephen F. Lynch259,159 (98.4%) none 4,148 D+98.4
9 Bill Keating192,347 (59.4%) Peter D. Tedeschi131,463 (40.6%) 118 D+18.8

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Middlesex 480,602 74.5% 151,057 23.4% 13,195 644,854 D+51.1
Essex 203,590 66.0% 94,431 30.6% 10,665 308,686 D+35.4
Worcester 194,056 64.9% 101,225 33.9% 3,611 298,892 D+31.1
Norfolk 243,460 97.9% 651 0.3% 4,670 248,781 D+97.6
Suffolk 214,505 95.5% 6,248 2.8% 3,864 224,617 D+92.7
Plymouth 142,179 70.0% 60,087 29.6% 893 203,159 D+40.4
Bristol 133,439 84.5% 22,444 14.2% 2,074 157,957 D+70.3
Hampden 121,454 97.1% 68 0.1% 3,548 125,070 D+97.1
Barnstable 72,289 61.3% 45,535 38.6% 41 117,865 D+22.7
Hampshire 56,987 88.4% 7,084 11.0% 379 64,450 D+77.4
Berkshire 44,678 98.9% 0 0.0% 475 45,153 D+98.9
Franklin 25,541 81.4% 5,726 18.2% 114 31,381 D+63.1
Dukes 7,916 78.6% 2,157 21.4% 1 10,074 D+57.2
Nantucket 2,901 70.0% 1,240 29.9% 1 4,142 D+40.1

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Massachusetts in every House election we hold

YearSeatsHouse vote
2024 D 9, R 0 D+69.9
2022 D 9, R 0 D+39.4
2020 D 9, R 0 D+53.6
2018 D 9, R 0 D+58.2
2016 D 9, R 0 D+63.7
2014 D 9, R 0 D+63.4
2012 D 9, R 0 D+43.4
2010 D 10, R 0 D+23.7
2008 D 10, R 0 D+62.1
2006 D 10, R 0 D+63.9
2004 D 10, R 0 D+55.5
2002 D 10, R 0 D+55.8
2000 D 10, R 0 D+59.4
1998 D 10, R 0 D+51.3
1996 D 10, R 0 D+33.4
1994 D 8, R 2 D+39.0
1992 D 8, R 2 D+25.3
1990 D 10, R 1 D+35.2