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

Pennsylvania elected 18 members of the House in 2018: Democrats won 9 seats and Republicans 9.

The closest was the 1st district, decided by 2.5 points: Brian K. Fitzpatrick (Republican) beat Henry Scott Wallace (Democrat), 51.3% to 48.7%, a margin of 2.5 points and 8,308 votes.

In the House vote by county, Republicans led in 54 of the 67 counties and Democrats in 13. The largest, Philadelphia, cast 547,210 votes and went to the Democrat by 74.4 points. The closest was Luzerne, where 367 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 Henry Scott Wallace160,745 (48.7%) Brian K. Fitzpatrick169,053 (51.3%) R+2.5
2 Brendan F. Boyle159,600 (79.0%) David Torres42,382 (21.0%) D+58.0
3 Dwight Evans287,610 (93.4%) Bryan E. Leib20,387 (6.6%) D+86.8
4 Madeleine Dean Cunnane211,524 (63.5%) Daniel David121,467 (36.5%) D+27.0
5 Mary Gay Scanlon198,639 (65.2%) Pearl Kim106,075 (34.8%) D+30.4
6 Christina Jampoler Houlahan177,704 (58.9%) Gregory Michael McCauley Sr.124,124 (41.1%) D+17.8
7 Susan Ellis Wild140,813 (53.5%) Martin W. Nothstein114,437 (43.5%) 8,011 D+10.0
8 Matthew Alton Cartwright135,603 (54.6%) John Robert Chrin112,563 (45.4%) D+9.3
9 Dennis Wolff100,204 (40.3%) Daniel Meuser148,723 (59.7%) R+19.5
10 George B. Scott141,668 (48.7%) Scott G. Perry149,365 (51.3%) R+2.6
11 Jessica King113,876 (41.0%) Lloyd K. Smucker163,708 (59.0%) R+18.0
12 Marc Friedenberg82,825 (34.0%) Thomas A. Marino161,047 (66.0%) R+32.1
13 Brent M. Ottaway74,733 (29.5%) John Joyce178,533 (70.5%) R+41.0
14 Bibiana Boerio110,051 (42.1%) Guy L. Reschenthaler151,386 (57.9%) R+15.8
15 Susan Boser78,327 (32.2%) Glenn William Thompson Jr.165,245 (67.8%) R+35.7
16 Ronald A. Dinicola124,109 (47.3%) George J Kelly Jr.135,348 (51.6%) 2,939 R+4.3
17 Conor James Lamb183,162 (56.3%) Keith Rothfus142,417 (43.7%) D+12.5
18 Michael F Doyle Jr.231,472 (100.0%) none D+100.0

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Philadelphia 477,118 87.2% 70,092 12.8% 547,210 D+74.4
Allegheny 377,782 78.6% 102,697 21.4% 480,479 D+57.3
Montgomery 242,027 63.7% 137,736 36.3% 379,763 D+27.5
Bucks 141,577 48.1% 152,461 51.9% 294,038 R+3.7
Delaware 154,477 62.0% 94,817 38.0% 249,294 D+23.9
Chester 139,804 59.0% 97,054 41.0% 236,858 D+18.0
Lancaster 89,167 43.9% 113,788 56.1% 202,955 R+12.1
York 68,128 39.9% 102,641 60.1% 170,769 R+20.2
Westmoreland 59,841 41.1% 85,605 58.9% 145,446 R+17.7
Berks 72,555 50.5% 71,181 49.5% 143,736 D+1.0
Lehigh 70,000 54.5% 54,354 42.3% 4,193 128,547 D+12.2
Northampton 59,393 51.8% 51,888 45.2% 3,450 114,731 D+6.5
Dauphin 58,605 54.1% 49,767 45.9% 108,372 D+8.2
Luzerne 53,554 49.8% 53,921 50.2% 107,475 R+0.3
Cumberland 46,726 44.7% 57,817 55.3% 104,543 R+10.6
Erie 60,392 59.3% 40,470 39.8% 940 101,802 D+19.6
Lackawanna 53,467 63.8% 30,361 36.2% 83,828 D+27.6
Butler 28,499 35.8% 50,376 63.2% 774 79,649 R+27.5
Washington 33,601 42.6% 45,313 57.4% 78,914 R+14.8
Beaver 32,821 48.3% 35,108 51.7% 67,929 R+3.4
Centre 32,635 53.9% 27,941 46.1% 60,576 D+7.7
Monroe 30,515 55.6% 23,971 43.7% 368 54,854 D+11.9
Franklin 15,634 28.6% 39,116 71.4% 54,750 R+42.9
Cambria 18,579 37.6% 30,855 62.4% 49,434 R+24.8
Lebanon 17,526 35.8% 31,414 64.2% 48,940 R+28.4
Schuylkill 18,510 38.2% 29,946 61.8% 48,456 R+23.6
Blair 12,497 28.8% 30,851 71.2% 43,348 R+42.3
Mercer 17,842 43.3% 22,799 55.4% 521 41,162 R+12.0
Lycoming 12,063 29.5% 28,866 70.5% 40,929 R+41.1
Fayette 17,115 42.5% 23,182 57.5% 40,297 R+15.1
Adams 13,291 34.2% 25,596 65.8% 38,887 R+31.6
Lawrence 13,553 42.1% 18,245 56.7% 362 32,160 R+14.6
Crawford 11,850 38.9% 18,301 60.0% 342 30,493 R+21.2
Indiana 11,211 38.3% 18,053 61.7% 29,264 R+23.4
Somerset 6,963 24.4% 21,572 75.6% 28,535 R+51.2
Northumberland 9,492 33.4% 18,896 66.6% 28,388 R+33.1
Clearfield 7,367 27.4% 19,476 72.6% 26,843 R+45.1
Armstrong 7,521 31.0% 16,760 69.0% 24,281 R+38.1
Columbia 9,825 43.6% 12,690 56.4% 22,515 R+12.7
Carbon 8,902 39.8% 13,448 60.2% 22,350 R+20.3
Pike 8,711 42.0% 12,030 58.0% 20,741 R+16.0
Wayne 7,550 37.6% 12,540 62.4% 20,090 R+24.8
Bradford 5,735 28.6% 14,305 71.4% 20,040 R+42.8
Bedford 3,489 18.6% 15,311 81.4% 18,800 R+62.9
Venango 5,935 32.1% 12,544 67.9% 18,479 R+35.8
Perry 4,493 26.3% 12,576 73.7% 17,069 R+47.4
Huntingdon 4,246 26.8% 11,570 73.2% 15,816 R+46.3
Susquehanna 4,814 30.5% 10,983 69.5% 15,797 R+39.1
Jefferson 3,358 21.6% 12,214 78.4% 15,572 R+56.9
Tioga 3,733 25.4% 10,949 74.6% 14,682 R+49.1
Warren 4,770 33.1% 9,660 66.9% 14,430 R+33.9
Union 5,424 37.7% 8,952 62.3% 14,376 R+24.5
Clarion 3,847 27.9% 9,958 72.1% 13,805 R+44.3
Mifflin 3,130 22.9% 10,537 77.1% 13,667 R+54.2
Snyder 3,583 27.0% 9,696 73.0% 13,279 R+46.0
McKean 3,489 27.8% 9,064 72.2% 12,553 R+44.4
Clinton 4,631 37.5% 7,732 62.5% 12,363 R+25.1
Greene 4,957 40.6% 7,267 59.4% 12,224 R+18.9
Elk 3,584 31.7% 7,712 68.3% 11,296 R+36.5
Wyoming 3,567 33.8% 6,980 66.2% 10,547 R+32.4
Juniata 1,814 21.5% 6,623 78.5% 8,437 R+57.0
Montour 3,076 44.0% 3,915 56.0% 6,991 R+12.0
Potter 1,418 22.8% 4,809 77.2% 6,227 R+54.5
Fulton 888 16.8% 4,387 83.2% 5,275 R+66.3
Sullivan 825 30.5% 1,878 69.5% 2,703 R+39.0
Forest 564 29.3% 1,364 70.7% 1,928 R+41.5
Cameron 527 29.8% 1,242 70.2% 1,769 R+40.4

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

Pennsylvania in every House election we hold

YearSeatsHouse vote
2024 D 7, R 10 R+2.1
2022 D 9, R 8 R+5.2
2020 D 9, R 9 R+1.3
2018 D 9, R 9 D+10.3
2016 D 5, R 13 R+8.2
2014 D 5, R 13 R+11.0
2012 D 5, R 13 D+1.5
2010 D 7, R 12 R+3.8
2008 D 12, R 7 D+11.9
2006 D 11, R 8 D+12.4
2004 D 7, R 12 R+1.7
2002 D 7, R 12 R+15.4
2000 D 10, R 11 D+1.1
1998 D 11, R 10 R+3.2
1996 D 11, R 10 D+4.3
1994 D 11, R 10 R+10.1
1992 D 11, R 10 R+4.2
1990 D 11, R 12 R+9.1