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United States · Election results history · 2012 House · Pennsylvania
Election 2012 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.

2012 US House elections in Pennsylvania

Pennsylvania elected 18 members of the House in 2012: Democrats won 5 seats and Republicans 13.

The closest was the 12th district, decided by 3.5 points: Keith J. Rothfus (Republican) beat Mark S. Critz (Democrat), 51.7% to 48.3%, a margin of 3.5 points and 11,763 votes.

In the House vote by county, Republicans led in 55 of the 67 counties and Democrats in 12. The largest, Philadelphia, cast 649,949 votes and went to the Democrat by 73.9 points. The closest was Fayette, where 459 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 Robert A. Brady235,394 (84.9%) John Featherman41,708 (15.1%) D+69.9
2 Chaka Fattah318,176 (89.3%) Robert Allen Mansfield, Jr.33,381 (9.4%) 4,829 D+79.9
3 Missa Eaton123,933 (41.0%) Mike Kelly165,826 (54.8%) 12,755 R+13.9
4 Harry Perkinson104,643 (34.4%) Scott Perry181,603 (59.7%) 17,734 R+25.3
5 Charles Dumas104,725 (37.1%) Glenn Thompson177,740 (62.9%) R+25.9
6 Manan M. Trivedi143,803 (42.9%) Jim Gerlach191,725 (57.1%) R+14.3
7 George Badey143,509 (40.6%) Patrick Meehan209,942 (59.4%) R+18.8
8 Kathy Boockvar152,859 (43.4%) Michael G. Fitzpatrick199,379 (56.6%) R+13.2
9 Karen Ramsburg105,128 (38.3%) Bill Shuster169,177 (61.7%) R+23.4
10 Philip Scollo94,227 (34.4%) Tom Marino179,563 (65.6%) R+31.2
11 Gene Stilp118,231 (41.5%) Lou Barletta166,967 (58.5%) R+17.1
12 Mark S. Critz163,589 (48.3%) Keith J. Rothfus175,352 (51.7%) R+3.5
13 Allyson Y. Schwartz209,901 (69.1%) Joseph James Rooney93,918 (30.9%) D+38.2
14 Michael F. Doyle251,932 (76.9%) Hans Lessmann75,702 (23.1%) D+53.8
15 Rick Daugherty128,764 (43.2%) Charles W. Dent168,960 (56.8%) R+13.5
16 Aryanna C. Strader111,185 (39.0%) Joseph R. Pitts156,192 (54.8%) 17,404 R+15.8
17 Matthew A. Cartwright161,393 (60.3%) Laureen A. Cummings106,208 (39.7%) D+20.6
18 Larry Maggi122,146 (36.0%) Tim Murphy216,727 (64.0%) R+27.9

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Philadelphia 562,767 86.6% 82,709 12.7% 4,473 649,949 D+73.9
Allegheny 343,431 61.0% 219,359 39.0% 562,790 D+22.0
Montgomery 218,807 55.3% 176,663 44.6% 356 395,826 D+10.6
Bucks 137,917 43.9% 175,918 56.1% 313,835 R+12.1
Delaware 144,034 52.6% 129,744 47.4% 273,778 D+5.2
Chester 106,897 43.4% 137,499 55.8% 2,158 246,554 R+12.4
Lancaster 72,073 33.0% 132,928 60.8% 13,624 218,625 R+27.8
York 59,351 31.9% 114,159 61.4% 12,505 186,015 R+29.5
Westmoreland 65,917 36.8% 113,062 63.2% 178,979 R+26.3
Berks 71,331 44.0% 89,175 55.0% 1,766 162,272 R+11.0
Lehigh 67,957 47.2% 75,871 52.8% 143,828 R+5.5
Northampton 60,425 48.9% 63,193 51.1% 123,618 R+2.2
Luzerne 61,134 50.2% 60,566 49.8% 121,700 D+0.5
Dauphin 59,937 51.0% 57,358 48.8% 328 117,623 D+2.2
Erie 60,427 52.5% 51,012 44.4% 3,560 114,999 D+8.2
Cumberland 37,514 34.6% 67,678 62.5% 3,109 108,301 R+27.9
Washington 43,602 44.5% 54,333 55.5% 97,935 R+11.0
Lackawanna 62,820 66.6% 31,475 33.4% 94,295 D+33.2
Beaver 47,484 50.4% 46,786 49.6% 94,270 D+0.7
Butler 25,527 29.0% 59,742 67.8% 2,892 88,161 R+38.8
Centre 30,567 45.2% 37,012 54.8% 67,579 R+9.5
Franklin 19,187 31.1% 42,564 68.9% 61,751 R+37.9
Cambria 33,688 58.2% 24,219 41.8% 57,907 D+16.4
Monroe 31,826 55.5% 25,523 44.5% 57,349 D+11.0
Schuylkill 26,571 47.6% 29,298 52.4% 55,869 R+4.9
Lebanon 17,819 32.7% 36,648 67.3% 54,467 R+34.6
Mercer 24,692 49.1% 23,869 47.4% 1,754 50,315 D+1.6
Blair 17,256 34.6% 32,655 65.4% 49,911 R+30.9
Fayette 23,200 49.5% 23,659 50.5% 46,859 R+1.0
Lycoming 12,733 27.8% 33,044 72.1% 59 45,836 R+44.3
Adams 12,105 29.0% 27,408 65.6% 2,249 41,762 R+36.6
Lawrence 17,826 45.2% 20,370 51.7% 1,237 39,433 R+6.5
Somerset 15,507 40.4% 22,881 59.6% 38,388 R+19.2
Indiana 13,517 38.1% 21,999 61.9% 35,516 R+23.9
Crawford 13,032 37.2% 20,183 57.7% 1,792 35,007 R+20.4
Northumberland 11,395 35.4% 20,738 64.5% 24 32,157 R+29.1
Clearfield 9,617 30.6% 21,801 69.3% 28 31,446 R+38.7
Armstrong 8,607 29.8% 18,939 65.5% 1,350 28,896 R+35.8
Columbia 9,532 37.8% 15,693 62.2% 25,225 R+24.4
Carbon 11,446 46.9% 12,977 53.1% 24,423 R+6.3
Pike 10,507 44.6% 13,075 55.4% 23,582 R+10.9
Bradford 6,789 30.0% 15,840 70.0% 22,629 R+40.0
Bedford 6,298 28.6% 15,752 71.4% 22,050 R+42.9
Venango 6,896 31.7% 14,809 68.2% 19 21,724 R+36.4
Wayne 7,134 34.2% 13,754 65.8% 20,888 R+31.7
Perry 5,411 29.1% 13,191 70.9% 18,602 R+41.8
Jefferson 4,484 25.1% 13,354 74.9% 17,838 R+49.7
Susquehanna 5,884 33.4% 11,697 66.4% 28 17,609 R+33.0
Huntingdon 5,267 30.6% 11,940 69.3% 24 17,231 R+38.7
Warren 5,943 35.6% 10,711 64.2% 22 16,676 R+28.6
Tioga 4,604 28.0% 11,827 72.0% 16,431 R+44.0
Clarion 4,597 28.9% 11,092 69.7% 227 15,916 R+40.8
Mifflin 4,122 26.1% 11,668 73.9% 15,790 R+47.8
Union 5,250 33.3% 10,522 66.7% 15,772 R+33.4
McKean 4,334 29.5% 10,334 70.5% 14,668 R+40.9
Greene 6,544 45.4% 7,857 54.6% 14,401 R+9.1
Snyder 3,759 26.2% 10,608 73.8% 14,367 R+47.7
Elk 4,627 35.5% 8,416 64.5% 13,043 R+29.1
Clinton 4,727 36.4% 8,252 63.6% 12,979 R+27.2
Wyoming 4,441 38.0% 7,235 62.0% 11,676 R+23.9
Juniata 2,376 25.8% 6,822 74.1% 13 9,211 R+48.3
Montour 2,959 39.1% 4,610 60.9% 7,569 R+21.8
Potter 1,589 22.4% 5,505 77.6% 7,094 R+55.2
Fulton 1,695 27.8% 4,407 72.2% 6,102 R+44.4
Sullivan 866 30.2% 1,997 69.7% 1 2,864 R+39.5
Forest 773 34.3% 1,483 65.7% 2,256 R+31.5
Cameron 651 31.4% 1,421 68.5% 2 2,074 R+37.1

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