Results archive / Pennsylvania
Pennsylvania election results
President since 1976, counties since 2000, US Senate since 1976.
President
Electoral votes
1976 D 271980 R 271984 R 251988 R 251992 D 231996 D 232000 D 232004 D 212008 D 212012 D 202016 R 202020 D 202024 R 19
2024 Trump+1.7
Counties
Democratic lead<55-1010-2020+
Republican lead<55-1010-2020+
No dataSwing
Towards the Democrat<22-55-1010+
Towards the Republican<22-55-1010+
No dataUS Senate
2024
Dave McCormick (R)48.8%
Robert P Casey Jr (D)48.6%
2022
John K Fetterman (D)51.2%
Mehmet C Oz (R)46.3%
2018
Robert P Casey Jr (D)55.6%
Louis J. Barletta (R)42.7%
2016
Patrick J. Toomey (R)48.8%
Katie McGinty (D)47.3%
2012
Robert P. Casey, Jr. (D)53.7%
Tom Smith (R)44.6%
2010
Pat Toomey (R)51.0%
Joe Sestak (D)49.0%
2006
Bob Casey, Jr. (D)58.6%
Rick Santorum (R)41.3%
2004
Arlen Specter (R)52.6%
Joseph M. Hoeffel (D)42.0%
2000
Rick Santorum (R)52.4%
Ron Klink (D)45.5%
1998
Arlen Specter (R)61.3%
Bill Lloyd (D)34.8%
1994
Rick Santorum (R)49.4%
Harris Wofford (D)46.9%
1992
Arlen Specter (R)49.1%
Lynn Yeakel (D)46.3%
1988
John Heinz (R)66.5%
Joe Vignola (D)32.4%
1986
Arlen Specter (R)56.4%
Bob Edgar (D)42.9%
1982
John Heinz (R)59.3%
Cyril H. Wecht (D)39.2%
1980
Arlen Specter (R)50.5%
Pete Flaherty (D)48.0%
1976
H. John Heinz III (R)52.4%
William J. Green (D)46.8%
MEDSL and VEST results files: fixed historic releases. 2026 Senate counts: uncertified.
Sources
- National Archives, Office of the Federal Register: Electoral College results 1976-2024 (Public domain (US government work))
- MIT Election Data and Science Lab, U.S. President 1976-2024, Harvard Dataverse (CC0 1.0)
- MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (GitHub copy, commit f44e3fc; the dataset is CC0 1.0 on Harvard Dataverse, doi:10.7910/DVN/VOQCHQ) (CC0 1.0)
- Connecticut Secretary of the State, 2012 presidential election results by town (CT Election History), summed to the eight legacy counties by PollCheck (Official public records)
- Voting and Election Science Team, 2020 Precinct-Level Election Results, Harvard Dataverse (precincts summed to counties by PollCheck) (CC BY 4.0)
- PollCheck 2024 county totals (us_site/house_pres.py): MEDSL 2024 precinct returns (CC0 1.0) plus the state sources named in county_pres_2024.json (CC0 1.0 (MEDSL rows))
- US Census Bureau cartographic boundary files: counties 2020 (1:500,000) and 2024 (1:5,000,000) (Public domain)
- US Census Bureau state legislative districts (lower chamber), Alaska: TIGER/Line 2010 (2000 and 2010 districts) and cartographic boundary files 2013, 2018 and 2023 (Public domain)
- Maine Bureau of Corporations, Elections and Commissions, 2024 General Election, President and Vice President (certified, corrected 5 Dec 2024) (Maine government record)
- New York State Board of Elections, 2004 General Election, President and Vice President, results by county (New York government record)
- New York State Board of Elections, President and Vice-President Election Returns Nov. 6, 2012 (dated 20 Mar 2013, Kings update 9 Jun 2013), copy hosted by the American Presidency Project (New York government record)
- MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024, Harvard Dataverse (CC0 1.0)
- State election office counts as read by the PollCheck midterms results feed (us_midterms_2026/data/results.json); uncertified (Official public records)
- us-atlas 3.0.1 counties-albers-10m (Census 2017 county boundaries) (ISC)
- us-atlas 3.0.1 states-albers-10m.json (US Census Bureau cartographic boundary files 2017; ISC licence)
Final results.