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United States · Election results history · 2018 House · Washington
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 Washington

Washington elected 10 members of the House in 2018: Democrats won 7 seats and Republicans 3.

The closest was the 8th district, decided by 4.8 points: Kim Schrier (Democrat) beat Dino Rossi (Republican), 52.4% to 47.6%, a margin of 4.8 points and 15,121 votes.

In the House vote by county, Republicans led in 24 of the 39 counties and Democrats in 15. The largest, King, cast 922,042 votes and went to the Democrat by 61.9 points. The closest was Pacific, where 110 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 Suzan Delbene197,209 (59.3%) Jeffrey Beeler135,534 (40.7%) D+18.5
2 Rick Larsen210,187 (71.3%) none 84,646 D+71.3
3 Carolyn Long145,407 (47.3%) Jaime Herrera Beutler161,819 (52.7%) R+5.3
4 Christine Brown83,785 (37.2%) Dan Newhouse141,551 (62.8%) R+25.6
5 Lisa Brown144,925 (45.2%) Cathy McMorris Rodgers175,422 (54.8%) R+9.5
6 Derek Kilmer206,409 (63.9%) Douglas Dightman116,677 (36.1%) D+27.8
7 Pramila Jayapal329,800 (83.6%) Craig Keller64,881 (16.4%) D+67.1
8 Kim Schrier164,089 (52.4%) Dino Rossi148,968 (47.6%) D+4.8
9 Adam Smith163,345 (67.9%) none 77,222 D+67.9
10 Denny Heck166,215 (61.5%) Joseph Brumbles103,860 (38.5%) D+23.1

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
King 744,912 80.8% 174,535 18.9% 2,595 922,042 D+61.9
Pierce 190,722 59.7% 128,857 40.3% 319,579 D+19.4
Snohomish 197,436 63.4% 64,160 20.6% 49,585 311,181 D+42.8
Spokane 108,697 47.6% 119,770 52.4% 228,467 R+4.8
Clark 99,277 51.1% 94,896 48.9% 194,173 D+2.3
Thurston 77,868 63.8% 44,140 36.2% 122,008 D+27.6
Kitsap 76,746 64.3% 42,628 35.7% 119,374 D+28.6
Whatcom 67,233 63.2% 29,545 27.8% 9,567 106,345 D+35.4
Benton 28,285 37.8% 46,521 62.2% 74,806 R+24.4
Yakima 28,653 40.7% 41,757 59.3% 70,410 R+18.6
Skagit 31,759 61.8% 9,338 18.2% 10,323 51,420 D+43.6
Cowlitz 19,136 43.7% 24,642 56.3% 43,778 R+12.6
Island 26,647 67.9% 0 0.0% 12,602 39,249 D+67.9
Clallam 22,633 57.8% 16,551 42.2% 39,184 D+15.5
Lewis 10,937 32.4% 22,865 67.6% 33,802 R+35.3
Chelan 14,900 45.5% 17,852 54.5% 32,752 R+9.0
Grays Harbor 15,515 55.1% 12,644 44.9% 28,159 D+10.2
Mason 14,834 54.1% 12,606 45.9% 27,440 D+8.1
Grant 7,189 27.2% 19,197 72.8% 26,386 R+45.5
Walla Walla 11,197 44.8% 13,775 55.2% 24,972 R+10.3
Stevens 6,961 30.9% 15,586 69.1% 22,547 R+38.3
Franklin 8,868 39.9% 13,360 60.1% 22,228 R+20.2
Jefferson 15,076 72.9% 5,591 27.1% 20,667 D+45.9
Kittitas 8,700 45.4% 10,458 54.6% 19,158 R+9.2
Whitman 8,946 52.2% 8,184 47.8% 17,130 D+4.4
Okanogan 6,506 39.4% 10,007 60.6% 16,513 R+21.2
Douglas 5,175 34.9% 9,632 65.1% 14,807 R+30.1
Pacific 5,329 49.5% 5,439 50.5% 10,768 R+1.0
Klickitat 4,802 44.7% 5,929 55.3% 10,731 R+10.5
San Juan 8,130 76.9% 0 0.0% 2,436 10,566 D+76.9
Asotin 3,570 39.2% 5,527 60.8% 9,097 R+21.5
Pend Oreille 2,350 34.3% 4,496 65.7% 6,846 R+31.3
Skamania 2,521 45.1% 3,066 54.9% 5,587 R+9.8
Lincoln 1,329 24.6% 4,070 75.4% 5,399 R+50.8
Adams 1,104 26.2% 3,116 73.8% 4,220 R+47.7
Ferry 1,232 35.2% 2,272 64.8% 3,504 R+29.7
Wahkiakum 1,022 41.9% 1,416 58.1% 2,438 R+16.2
Columbia 636 28.8% 1,572 71.2% 2,208 R+42.4
Garfield 321 24.9% 969 75.1% 1,290 R+50.2

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

Washington in every House election we hold

YearSeatsHouse vote
2024 D 8, R 2 D+16.2
2022 D 8, R 2 D+16.2
2020 D 7, R 3 D+17.1
2018 D 7, R 3 D+25.2
2016 D 6, R 4 D+8.3
2014 D 6, R 4 D+7.0
2012 D 6, R 4 D+8.9
2010 D 5, R 4 D+6.5
2008 D 6, R 3 D+18.4
2006 D 6, R 3 D+21.7
2004 D 6, R 3 D+18.8
2002 D 6, R 3 D+7.4
2000 D 6, R 3 D+10.4
1998 D 5, R 4 D+8.7
1996 D 3, R 6 D+5.0
1994 D 2, R 7 R+1.6
1992 D 8, R 1 D+14.6
1990 D 5, R 3 D+7.6