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United States · Election results history · 2018 House · Connecticut
Election 2018 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

2018 US House elections in Connecticut

Connecticut elected 5 members of the House in 2018: Democrats won 5 seats and Republicans 0.

The closest was the 5th district, decided by 11.8 points: Jahana Hayes (Democrat) beat Manny Santos (Republican), 55.9% to 44.1%, a margin of 11.7 points and 31,799 votes.

In the House vote by county, Democrats led in 7 of the 8 counties and Republicans in 1. The largest, Fairfield, cast 350,210 votes and went to the Democrat by 21.7 points. The closest was Litchfield, where 1,054 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 John B Larson175,087 (63.9%) Jennifer T Nye96,024 (35.0%) 3,029 D+28.8
2 Joe Courtney179,731 (62.2%) Danny Postemski Jr102,483 (35.4%) 6,900 D+26.7
3 Rosa L Delauro174,572 (64.6%) Angel Cadena95,667 (35.4%) D+29.2
4 Jim Himes168,726 (61.2%) Harry Arora106,921 (38.8%) 4 D+22.4
5 Jahana Hayes151,225 (55.9%) Manny Santos119,426 (44.1%) 13 D+11.8

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Fairfield 213,102 60.8% 137,098 39.1% 10 350,210 D+21.7
Hartford 216,538 64.0% 118,758 35.1% 3,231 338,527 D+28.9
New Haven 197,520 62.0% 120,797 37.9% 143 318,460 D+24.1
New London 69,343 66.3% 32,868 31.4% 2,405 104,616 D+34.9
Litchfield 41,280 49.2% 42,334 50.5% 249 83,863 R+1.3
Middlesex 47,044 60.3% 29,973 38.4% 950 77,967 D+21.9
Tolland 40,338 62.5% 22,607 35.0% 1,644 64,589 D+27.5
Windham 24,176 58.2% 16,086 38.7% 1,313 41,575 D+19.5

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

Connecticut in every House election we hold

YearSeatsHouse vote
2024 D 5, R 0 D+18.4
2022 D 5, R 0 D+15.5
2020 D 5, R 0 D+21.3
2018 D 5, R 0 D+23.8
2016 D 5, R 0 D+26.8
2014 D 5, R 0 D+20.6
2012 D 5, R 0 D+30.8
2010 D 5, R 0 D+18.2
2008 D 5, R 0 D+31.9
2006 D 4, R 1 D+21.3
2004 D 2, R 3 D+10.9
2002 D 2, R 3 D+4.4
2000 D 3, R 3 D+7.9
1998 D 4, R 2 D+5.6
1996 D 4, R 2 D+13.6
1994 D 3, R 3 R+0.9
1992 D 3, R 3 R+3.8
1990 D 3, R 3 R+5.5