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United States · Election results history · 1940 Senate · Pennsylvania
Election 1940 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.

1940 US Senate election in Pennsylvania

Joseph F. Guffey (Democrat) beat Jay Cooke (Republican) in Pennsylvania in 1940, 51.8% to 47.4%, a margin of 4.4 points and 176,876 votes.

The Democratic hold continued from 1934, when Joseph F. Guffey also won.

Republicans led in 44 of the 67 counties as they stood then and Democrats in 23. The largest, Philadelphia, cast 877,522 votes and went to the Democrat by 18.9 points. The closest was Juniata, where 35 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.

Senate

CandidatePartyVotesShare
Joseph F. Guffey won Democratic 2,069,980 51.8%
Jay Cooke Republican 1,893,104 47.4%
All other candidates 33,936 0.8%
Total3,997,020

Every county

CountyDemocratRepublicanOthersTotalMargin
Philadelphia 518,652 59.1% 353,237 40.3% 5,633 877,522 D+18.9
Allegheny 345,084 55.5% 270,413 43.5% 5,749 621,246 D+12.0
Luzerne 95,992 54.8% 78,462 44.8% 737 175,191 D+10.0
Delaware 57,753 41.7% 79,840 57.7% 858 138,451 R+16.0
Lackawanna 68,251 55.2% 54,821 44.4% 471 123,543 D+10.9
Montgomery 46,306 38.6% 72,916 60.7% 852 120,074 R+22.2
Westmoreland 60,193 58.5% 41,220 40.0% 1,523 102,936 D+18.4
Schuylkill 45,923 50.1% 45,410 49.5% 386 91,719 D+0.6
Berks 48,969 57.6% 32,125 37.8% 3,890 84,984 D+19.8
Dauphin 35,345 44.7% 43,218 54.6% 531 79,094 R+10.0
Washington 48,735 61.7% 29,608 37.5% 643 78,986 D+24.2
Lancaster 31,364 41.0% 44,633 58.4% 429 76,426 R+17.4
Cambria 40,212 55.9% 31,090 43.2% 584 71,886 D+12.7
York 38,384 55.7% 30,026 43.6% 469 68,879 D+12.1
Erie 30,077 45.0% 36,240 54.2% 491 66,808 R+9.2
Fayette 40,752 62.7% 23,864 36.7% 366 64,982 D+26.0
Lehigh 31,232 51.4% 29,122 47.9% 396 60,750 D+3.5
Beaver 31,449 54.9% 25,056 43.8% 757 57,262 D+11.2
Northampton 31,801 55.6% 25,027 43.7% 408 57,236 D+11.8
Chester 21,151 42.3% 28,528 57.1% 300 49,979 R+14.8
Northumberland 24,526 51.0% 23,193 48.3% 337 48,056 D+2.8
Blair 20,133 42.2% 27,141 57.0% 382 47,656 R+14.7
Bucks 20,087 44.0% 25,248 55.3% 351 45,686 R+11.3
Lycoming 17,745 44.9% 21,336 54.0% 448 39,529 R+9.1
Lawrence 17,564 46.8% 19,415 51.7% 570 37,549 R+4.9
Mercer 16,122 43.3% 20,655 55.5% 425 37,202 R+12.2
Butler 12,754 38.9% 19,614 59.8% 422 32,790 R+20.9
Clearfield 16,768 51.3% 15,491 47.4% 407 32,666 D+3.9
Somerset 13,551 43.5% 17,396 55.9% 186 31,133 R+12.4
Cumberland 15,065 48.9% 15,566 50.5% 191 30,822 R+1.6
Indiana 11,588 42.4% 15,423 56.4% 322 27,333 R+14.0
Lebanon 12,683 47.8% 13,629 51.3% 242 26,554 R+3.6
Armstrong 11,320 43.5% 14,420 55.5% 258 25,998 R+11.9
Franklin 12,322 48.2% 13,108 51.2% 157 25,587 R+3.1
Crawford 9,596 37.8% 15,470 61.0% 306 25,372 R+23.2
Venango 6,518 26.7% 17,483 71.5% 437 24,438 R+44.9
Carbon 12,079 52.4% 10,870 47.1% 107 23,056 D+5.2
Columbia 12,175 55.7% 9,490 43.4% 181 21,846 D+12.3
McKean 6,500 30.4% 14,686 68.7% 202 21,388 R+38.3
Bradford 6,389 30.1% 14,681 69.2% 156 21,226 R+39.1
Centre 9,570 47.0% 10,636 52.2% 170 20,376 R+5.2
Jefferson 8,191 40.2% 11,909 58.5% 251 20,351 R+18.3
Warren 5,576 33.7% 10,756 65.0% 223 16,555 R+31.3
Greene 9,856 59.9% 6,487 39.4% 102 16,445 D+20.5
Bedford 7,178 44.9% 8,670 54.2% 136 15,984 R+9.3
Tioga 4,304 27.1% 11,492 72.4% 82 15,878 R+45.3
Adams 7,264 46.0% 8,479 53.7% 46 15,789 R+7.7
Clarion 6,468 41.7% 8,855 57.1% 190 15,513 R+15.4
Susquehanna 5,144 35.2% 9,392 64.3% 75 14,611 R+29.1
Huntingdon 5,260 36.6% 8,985 62.5% 127 14,372 R+25.9
Elk 6,710 49.3% 6,782 49.8% 118 13,610 R+0.5
Clinton 6,893 51.4% 6,408 47.8% 110 13,411 D+3.6
Mifflin 6,743 51.0% 6,402 48.4% 80 13,225 D+2.6
Wayne 3,279 26.3% 9,095 72.9% 100 12,474 R+46.6
Monroe 6,534 52.8% 5,763 46.6% 68 12,365 D+6.2
Perry 4,354 42.2% 5,904 57.2% 57 10,315 R+15.0
Snyder 2,372 29.3% 5,667 70.0% 56 8,095 R+40.7
Potter 2,651 33.8% 5,104 65.1% 87 7,842 R+31.3
Union 2,134 27.6% 5,527 71.6% 63 7,724 R+43.9
Wyoming 2,397 31.2% 5,235 68.0% 61 7,693 R+36.9
Juniata 3,494 49.5% 3,529 50.0% 40 7,063 R+0.5
Montour 2,989 52.7% 2,669 47.0% 19 5,677 D+5.6
Pike 1,762 40.9% 2,518 58.5% 25 4,305 R+17.6
Fulton 1,973 49.0% 2,041 50.7% 10 4,024 R+1.7
Sullivan 1,563 43.6% 2,001 55.8% 22 3,586 R+12.2
Cameron 1,340 41.7% 1,852 57.6% 24 3,216 R+15.9
Forest 871 32.5% 1,775 66.2% 34 2,680 R+33.7

Counties as they stood in 1940; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Pennsylvania Senate elections we hold

YearWinnerMargin
2024 Dave McCormick (R) R+0.2
2022 John K Fetterman (D) D+4.9
2018 Robert P Casey Jr (D) D+12.9
2016 Patrick J. Toomey (R) R+1.4
2012 Robert P. Casey, Jr. (D) D+9.1
2010 Pat Toomey (R) R+2.0
2006 Bob Casey, Jr. (D) D+17.4
2004 Arlen Specter (R) R+10.6
2000 Rick Santorum (R) R+6.9
1998 Arlen Specter (R) R+26.6
1994 Rick Santorum (R) R+2.5
1992 Arlen Specter (R) R+2.8
1988 John Heinz (R) R+34.0
1986 Arlen Specter (R) R+13.6
1982 John Heinz (R) R+20.1
1980 Arlen Specter (R) R+2.4
1976 H. John Heinz III (R) R+5.6
1974 Richard Schweiker (R) R+7.1
1970 Hugh Scott (R) R+6.0
1968 Richard Schweiker (R) R+6.1
1964 Hugh Scott (R) R+1.5
1962 Joseph S. Clark (D) D+2.4
1958 Hugh Scott (R) R+2.8
1956 Joseph S. Clark (D) D+0.4
1952 Edward Martin (R) R+3.6
1950 James H. Duff (R) R+3.6
1946 Edward Martin (R) R+19.4
1944 Francis Myers (D) D+0.6
1940 Joseph F. Guffey (D) D+4.4
1938 James J. Davis (R) R+10.6
1934 Joseph F. Guffey (D) D+4.3
1932 James J. Davis (R) R+6.2
1928 David A. Reed (R) R+30.4
1926 William S. Vare (R) R+11.5
1922 David A. Reed (R) R+25.5
1920 Boies Penrose (R) R+32.8
1916 Philander Knox (R) R+19.1
1914 Boies Penrose (R) R+22.8