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Political party strength in Pennsylvania

From Wikipedia - Reading time: 17 min

Partisan identification in the electorate

[edit]

On July 29, 2025, the Pennsylvania Department of State reported that there were 3,805,436 (42.9%) registered Democrats, 3,631,663 (40.9%) registered Republicans, 1,105,016 (12.5%) registered unaffiliated and 319,807 (3.6%) registered with other parties.[1]

Partisan affiliation of elected officials

[edit]

The following table indicates the party of elected officials in the U.S. state of Pennsylvania:

The table also indicates the historical party composition in the:

Following the 2020 Census, Pennsylvania lost one seat in the U.S. House of Representatives. As a result, starting with the general election of 2022, Pennsylvania sent 17 members to the house, and beginning with the general election of 2024 has 19 electoral votes.

1777–1790

[edit]
Year Executive offices State Legislature United States Congress Electoral votes
President[a] Vice President[a] Executive Council Senator (Class I) Senator (Class III) House
1777 Thomas Wharton Jr. (CS) George Bryan (CS) 51CS, 15RS, 6? began in 1789
1778 George Bryan (CS) 54CS, 7?, 5RS
1779 Joseph Reed (CS) Matthew Smith 43CS, 26RS, 3?
1780 William Moore (I) 51CS, 14RS, 7?
1781 41CS, 31RS
1782 William Moore (I) James Potter (CS) 38CS, 36RS
1783 John Dickinson (RS) James Ewing (RS) 39RS, 34CS, 1?
1784 44RS, 29CS
1785 James Irvine (CS) 56CS, 18RS
1786 Benjamin Franklin (I) Charles Biddle 38RS, 37CS
1787 41RS, 28CS
1788 Peter Muhlenberg 37RS, 32CS
1789 Thomas Mifflin (RS) George Ross 47RS, 22CS William Maclay (AA) Robert Morris (PA) 6PA, 2AA George Washington (I) /
John Adams (F) Green tickY
1790 42RS, 27CS

1791–1872

[edit]
Year Executive offices State Legislature United States Congress Electoral votes
Governor Auditor General Senate House Senator (Class I) Senator (Class III) House
1791 Thomas Mifflin (F) not an elected office 10F, 8DR 36F, 33DR vacant Robert Morris (PA) 4PA, 4AA
1792 42F, 27DR George Washington (I) /
John Adams (F) Green tickY
1793 9F, 9DR[b] 8AA, 5PA
1794 10F, 8DR 48F, 21DR Albert Gallatin (AA)
James Ross (PA)
1795 14F, 10DR 49F, 29DR James Ross (F) William Bingham (F) 8DR, 5F
1796 15F, 9DR 45F, 33DR 7DR, 6F Thomas Jefferson (DR) Red XN /
John Adams (F) Red XN
1797 44F, 34DR 8DR, 5F
1798 41F, 37DR
1799 47F, 31DR 9DR, 4F
1800 Thomas McKean (DR) 16F, 8DR 41DR, 37F Thomas Jefferson (DR) Green tickY /
John Adams (F) Red XN
1801 13F, 11DR 55DR, 23F Peter Muhlenberg (DR) 10DR, 3F
George Logan (DR)
1802 17DR, 8F 71DR, 15F
1803 21DR, 4F 77DR, 9F Samuel Maclay (DR) 18DR
1804 24DR, 1F 81DR, 5F Thomas Jefferson/
George Clinton (DR) Green tickY
1805 25DR 78DR, 8F 17DR, 1F
1806 Thomas McKean (Quid) 15Const, 10DR[c] 53Const, 33DR[c]
1807 13Const, 12DR[c] 46DR, 40Const[c] Andrew Gregg (DR) 15DR, 3F
1808 14DR, 7Quid, 4F 43DR, 23F, 20Quid[d] James Madison/
George Clinton (DR) Green tickY
1809 Simon Snyder (DR) 19DR, 7Quid, 5F 74DR, 21F Michael Leib (DR) 16DR, 2F
1810 22DR, 6F, 3Quid 73DR, 15F, 7Quid
1811 21DR, 7F, 3Quid 72DR, 17F, 6Quid 17DR, 1F
1812 26DR, 5F 84DR, 11F James Madison/
Elbridge Gerry (DR) Green tickY
1813 77DR, 18F Abner Lacock (DR) 22DR, 1F
1814 25DR, 6F 85DR, 10F Jonathan Roberts (DR) 21DR, 2F
1815 21DR, 10F 71DR, 24F 19DR, 4F
1816 19DR, 12F 71DR, 26F James Monroe/
Daniel D. Tompkins (DR) Green tickY
1817 57DR, 30F, 10Quid
1818 William Findlay (DR) 55DR, 42F[e]
1819 20DR, 11F 64DR, 33F Walter Lowrie (DR)
1820 23DR, 6F, 2Quid 67DR, 24F, 6Quid 18DR, 5F
1821 Joseph Hiester (DR) 20DR, 11F 52F, 45DR vacant 15DR, 8F
1822 17DR, 14F 67DR, 30F William Findlay (DR) 16DR, 7F
1823 23DR, 10F 71DR, 29F 20DR, 6F
1824 John Andrew Shulze (DR) 21DR, 11F, 1? 77DR, 23F Andrew Jackson/
John C. Calhoun (DR) Red XN
1825 26DR, 7F 79DR, 21F William Findlay (J) William Marks (NR) 14J, 11DR, 1F
1826 27DR, 6F 77DR, 23F 17J, 9DR
1827 74DR, 26F Isaac D. Barnard (J) 22J, 3DR, 1NR
1828 26J, 7NR 76J, 22NR, 2 vac. Andrew Jackson/
John C. Calhoun (D) Green tickY
1829 89J, 11NR 24J, 1A-M, 1NR
1830 George Wolf (J) 26J, 6NR, 1A-M 87J, 13A-M
1831 25J, 5NR, 4A-M 72J, 28A-M William Wilkins (J) 17J, 7A-M, 2NR
1832 23J, 6A-M, 4NR 74J, 22A-M, 4NR George M. Dallas (J) Andrew Jackson/
Martin Van Buren (D) Green tickY
1833 22J, 9A-M, 2NR 61J, 33A-M, 5NR, 1? Samuel McKean (J) 14J, 10A-M, 4NR
1834 24J, 7A-M, 2NR 64J, 25A-M, 11NR
1835 25J, 6A-M, 2W 62J, 27A-M, 11W James Buchanan (J) 17J, 7A-M, 4NR
1836 Joseph Ritner (A-M) 23D, 9A-M, 1W 72A-M/W, 28D Martin Van Buren/
Richard Mentor Johnson (D) Green tickY
1837 15D, 12W, 6A-M[f] 72D, 21A-M, 7W Samuel McKean (D) James Buchanan (D) 16D, 7A-M, 3W, 2J
1838 19W, 14D 56D, 44W
1839 David R. Porter (D) 18W, 15D vacant 17D, 6W, 5A-M
1840 17D, 16W 69D, 31W Daniel Sturgeon (D) William Henry Harrison/
John Tyler (W) Green tickY
1841 20W, 13D 55W, 45D 15D, 13W
1842 17W, 16D 64D, 34W, 2WM
1843 19D, 14W 57D, 40W, 2WM, 1I 12D, 12W
1844 22D, 11W 58D, 42W 13W, 11D James K. Polk/
George M. Dallas (D) Green tickY
1845 Francis R. Shunk (D) 21D, 11W, 1KN 51D, 41W, 8KN Simon Cameron (D) 12D, 10W, 2KN
1846 18W, 14D, 1KN 67D, 33W
1847 56W, 44D 16W, 7D, 1KN
1848 19W, 14D 64D, 36W 15W, 8D, 1KN Zachary Taylor/
Millard Fillmore (W) Green tickY
William F. Johnston (W)
1849 21W, 12D 50D, 45W, 5KN[g] James Cooper (W) 11W, 11D, 1KN, 1FS
1850 17D, 16W 59D, 41W
1851 Ephraim Banks (D) 16W, 16D, 1I[h] 60D, 36W, 2ID, 1IW, 1 vac. Richard Brodhead (D) 15D, 9W
1852 William Bigler (D) 17W, 16D 58D, 37W, 5KN Franklin Pierce/
William R. King (D) Green tickY
1853 17W, 15D, 1KN 62D, 38W 16D, 9W
1854 18D, 14W, 1KN 70D, 26W, 4KN
1855 James Pollock (W) 17D, 15W, 1KN 46W, 32D, 22KN[i] vacant 13O, 7D, 3W, 1R, 1KN
1856 17D, 16Fus 66D, 34Fus William Bigler (D) James Buchanan/
John C. Breckinridge (D) Green tickY
1857 Jacob Fry Jr. (D) 18Fus, 15D 53D, 47Fus Simon Cameron (R) 15D, 10R
1858 William F. Packer (D) 21D, 12R 68D, 30R, 2I 14D, 11R
1859 17D, 16R 67R, 33D 20R, 5D
1860 Thomas E. Cochran (R) 21R, 12D 66R, 34D Abraham Lincoln/
Hannibal Hamlin (R) Green tickY
1861 Andrew Gregg Curtin (R) 27R, 6D 71R, 29D David Wilmot (R) Edgar Cowan (R) 19R, 6D
1862 23R, 10D 51D, 49R 17R, 8D
1863 Isaac Slenker (D) 21R, 12D 55D, 45R Charles R. Buckalew (D) 12R, 12D
1864 17R, 16D 52R, 48D Abraham Lincoln/
Andrew Johnson (NU) Green tickY
1865 20R, 13D 64R, 36D 15R, 9D
1866 John F. Hartranft (R) 21R, 12D 67R, 33D 16R, 8D
1867 John W. Geary (R) 62R, 38D Simon Cameron (R) 18R, 6D
1868 19R, 14D 54R, 46D Ulysses S. Grant/
Schuyler Colfax (R) Green tickY
1869 18R, 15D 62R, 38D John Scott (R) 16R, 8D
1870 60R, 40D 18R, 6D
1871 17D, 16R 55R, 45D 13R, 11D
1872 17R, 16D 63R, 39D, 1I Ulysses S. Grant/
Henry Wilson (R) Green tickY
C. D. Brigham

1873–1978

[edit]
Year Executive offices State Legislature United States Congress Electoral votes
Governor Lieutenant
Governor		 Auditor
General		 Treasurer Senate House Senator
(Class I)		 Senator
(Class III)		 House
1873 John F. Hartranft (R) no such office Harrison Allen (R) Robert W. Mackey (R) 18R, 14D, 1LR 60R, 39D, 1I John Scott (R) Simon Cameron (R) 22R, 5D
1874 20R, 12D, 1LR 57R, 43D
1875 John Latta (D) Justus F. Temple (D) 30R, 20D[j] 110D, 89R, 1I, 1Proh[k] William A. Wallace (D) 17D, 10R
1876 Henry Rawle (R) 29R, 21D 18D, 9R Rutherford B. Hayes/
William A. Wheeler (R) Green tickY
1877 31R, 19D 119R, 81D, 1ID J. Donald Cameron (R) 17R, 10D
1878 William P. Schell (D) Amos C. Noyes (D)
1879 Henry M. Hoyt (R) Charles W. Stone (R) 32R, 17D, 1GB 107R, 77D, 17GB 17R, 8D, 2GB
1880 Samuel Butler (R) James A. Garfield/
Chester A. Arthur (R) Green tickY
1881 John A. Lemon (R) 121R, 78D, 1GB, 1Fus-D John I. Mitchell (R) 18R, 7D, 2GB
1882 Silas M. Bailey (R)
1883 Robert E. Pattison (D) Chauncey Forward Black (D) 30R, 20D 113D, 88R 15R, 12D, 1GB
1884 Jerome B. Niles (R) William Livsey (R) James G. Blaine/
John A. Logan (R) Red XN
1885 31R, 19D 140R, 60D, 1GBR 20R, 8D
1886 Matthew Quay (R)
1887 James A. Beaver (R) William T. Davies (R) A. Wilson Norris[l] William Livsey (R) 34R, 16D 131R, 69D, 1GBL Matthew Quay (R)
1888 William B. Hart (R) Benjamin Harrison/
Levi P. Morton (R) Green tickY
Thomas McCamant (R)
1889 William Livsey (R) 144R, 60D 21 R, 7D
1890 Henry K. Boyer (R)
1891 Robert E. Pattison (D) Louis Arthur Watres (R) 31R, 19D 122R, 79D, 3Fus 18R, 10D
1892 David McMurtrie Gregg (R) John Wallace Morrison (R) 17R, 11D Benjamin Harrison/
Whitelaw Reid (R) Red XN
1893 33R, 17D 135R, 69D 20R, 10D
1894 Samuel Jackson (R)
1895 Daniel H. Hastings (R) Walter Lyon (R) Amos H. Mylin 44R, 6D 175R, 29D 28R, 2D
1896 Benjamin J. Haywood (R) William McKinley/
Garret Hobart (R) Green tickY
1897 172R, 32D Boies Penrose (R)[l] 27R, 3D
1898 Levi G. McCauley (R) James S. Beacom (R)
1899 William A. Stone (R) John P. S. Gobin (R) 37R, 13D 127R, 71D, 6Fus vacant 20R, 10D
1900 James E. Barnett (R) William McKinley/
Theodore Roosevelt (R) Green tickY
1901 Edmund B. Hardenbergh (R) 38R, 12D 156R, 48D Matthew Quay (R) 26R, 4D
1902 Frank G. Harris (R)
1903 Samuel W. Pennypacker (R) William M. Brown (R) 40R, 10D 160R, 44D 28R, 4D
1904 William Preston Snyder (R) William L. Mathues (R) 29R, 3D Theodore Roosevelt/
Charles W. Fairbanks (R) Green tickY
Philander C. Knox (R)
1905 187R, 17D 31R, 1D
1906 William H. Berry (D)
1907 Edwin Sydney Stuart (R) Robert S. Murphy (R) Robert K. Young (R) 157R, 50D 25R, 7D
1908 John O. Sheatz (R) William Howard Taft/
James S. Sherman (R) Green tickY
1909 39R, 11D 173R, 34D George T. Oliver (R) 27R, 5D
1910 A. E. Sisson (R)
1911 John K. Tener (R) John Merriman Reynolds (R) Charles Frederick Wright (R) 38R, 18D 162R, 44D, 1Soc 23R, 9D
1912 24R, 8D Theodore Roosevelt/
Hiram Johnson (Prog) Red XN
1913 Archibald W. Powell (R) Robert K. Young (R) 34R, 13D, 3Prog 127R, 57D, 14Prog, 9Wash 22R, 12D, 2Prog
1914
1915 Martin Grove Brumbaugh (R) Frank B. McClain (R) 38R, 11D, 1Prog 164R, 41D, 1Soc, 1Prog 30R, 6D
1916 Charles Evans Hughes/
Charles W. Fairbanks (R) Red XN
1917 Charles A. Snyder (R) Harmon M. Kephart (R) 39R, 10D, 1Prog 169R, 37D, 1Soc, 1Prog Philander C. Knox (R) 29R, 6D, 1Prog
1918 28R, 7D, 1Prog
1919 William Cameron Sproul (R) Edward E. Beidleman (R) 44R, 6D 184R, 23D 29R, 7D
1920 30R, 6D Warren G. Harding/
Calvin Coolidge (R) Green tickY
1921 Samuel S. Lewis (R) Charles A. Snyder (R) 47R, 3D 193R, 14D 35R, 1D
William E. Crow (R)
1922 George W. Pepper (R)
David A. Reed (R)
1923 Gifford Pinchot (R) David J. Davis (R) 43R, 7D 167R, 41D 30R, 6D
1924 Calvin Coolidge/
Charles G. Dawes (R) Green tickY
1925 Edward Martin (R) Samuel S. Lewis (R) 42R, 8D 194R, 14D 36R
1926
1927 John Stuchell Fisher (R) Arthur James (R) 45R, 5D 191R, 17D William Scott Vare (R) 34R, 2D
1928 Herbert Hoover/
Charles Curtis (R) Green tickY
1929 Charles A. Waters (R) Edward Martin (R) 44R, 6D 192R, 16D 35R, 1D
1930 Joseph R. Grundy (R) 36R
1931 Gifford Pinchot (R) Edward C. Shannon (R) 46R, 4D 184R, 22D, 2Soc James J. Davis (R) 33R, 3D
1932 Herbert Hoover/
Charles Curtis (R) Red XN
1933 Frank E. Baldwin (R) Charles A. Waters (R) 43R, 7D 140R, 65D, 2I, 1Soc 23R, 11D
1934 22R, 12D
1935 George Howard Earle III (D) Thomas Kennedy (D) 31R, 19D 117D, 89R, 2Soc Joseph F. Guffey (D) 23D, 11R
1936 Franklin D. Roosevelt/
John Nance Garner (D) Green tickY
1937 Warren R. Roberts (D) F. Clair Ross (D) 34D, 16R 154D, 54R 27D, 7R
1938
1939 Arthur James (R) Samuel S. Lewis (R) 27R, 23D 129R, 79D 19R, 15D
1940 Franklin D. Roosevelt/
Henry A. Wallace (D) Green tickY
1941 F. Clair Ross (D) G. Harold Wagner (D) 32R, 18D 126D, 82R 19D, 15R
1942
1943 Edward Martin (R) John C. Bell Jr. (R) 132R, 76D 20R, 13D
1944 21R, 12D Franklin D. Roosevelt/
Harry S. Truman Green tickY
1945 Ted A. Rosenberg Ramsey S. Black (D) 109R, 99D Francis J. Myers (D) 18R, 15D
G. Harold Wagner (D)
1946 19R, 14D
1947 John C. Bell Jr. (R) vacant 34R, 16D 170R, 38D Edward Martin (R) 28R, 5D
James H. Duff (R) Daniel Strickler (R)
1948 Thomas E. Dewey/
Earl Warren (R) Red XN
1949 Weldon Brinton Heyburn (R) Charles R. Barber (R) 35R, 15D 117R, 91D 17R, 16D
1950
1951 John S. Fine (R) Lloyd H. Wood (R) 30R, 20D 120R, 88D James H. Duff (R) 20R, 13D
1952 Dwight D. Eisenhower/
Richard Nixon (R) Green tickY
1953 Charles R. Barber (R) Weldon Brinton Heyburn (R) 32R, 18D 110R, 98D 19R, 11D
1954
1955 George M. Leader (D) Roy E. Furman (D) 26R, 24D 112D, 98R 16R, 14D
1956
1957 Charles C. Smith (R) Robert F. Kent (R) 27R, 23D 126R, 84D Joseph S. Clark Jr. (D) 17R, 13D
1958
1959 David L. Lawrence (D) John Morgan Davis (D) 28R, 22D 108D, 102R Hugh Scott (R) 16D, 14R
1960 John F. Kennedy/
Lyndon B. Johnson (D) Green tickY
1961 Thomas Z. Minehart (D) Grace M. Sloan (D) 25D, 25R[m] 109D, 101R 16R, 14D
1962
1963 William Scranton (R) Raymond P. Shafer (R) 27R, 23D 108R, 102D 14R, 13D
1964 Lyndon B. Johnson/
Hubert Humphrey (D) Green tickY
1965 Grace M. Sloan (D) Thomas Z. Minehart (D) 28R, 22D 116D, 93R 15D, 12R
1966
1967 Raymond P. Shafer (R) Raymond J. Broderick (R) 27R, 23D 104R, 99D 14D, 13R
1968 Hubert Humphrey/
Edmund Muskie (D) Red XN
1969 Bob Casey Sr. (D) Grace M. Sloan (D) 107D, 96R Richard Schweiker (R)
1970
1971 Milton Shapp (D) Ernest Kline (D) 26D, 24R 113D, 90R
1972 Richard Nixon/
Spiro Agnew (R) Green tickY
1973 107R, 96D 13D, 12R
1974
1975 30D, 20R 113D, 90R 14D, 11R
1976 Jimmy Carter/
Walter Mondale (D) Green tickY
1977 Al Benedict (D) Robert E. Casey (D) 31D, 19R 118D, 85R John Heinz (R) 17D, 8R
1978

1978–present

[edit]
Year Executive offices State Legislature United States Congress Electoral votes
Governor Lieutenant
Governor		 Attorney
General		 Auditor
General		 Treasurer Senate House Senator
(Class I)		 Senator
(Class III)		 House
1979 Dick Thornburgh (R) William Scranton III (R) not an elected office Al Benedict (D) Robert E. Casey (D) 28D, 22R 102R, 101D John Heinz (R)[l] Richard Schweiker (R) 15D, 10R
1980 Ronald Reagan/
George H. W. Bush (R) Green tickY
1981 LeRoy Zimmerman (R) R. Budd Dwyer (R)[l] 26R, 24D 103R, 100D Arlen Specter (R) 13D, 12R
1982
1983 27R, 23D 103D, 100R 13D, 10R
1984
1985 Donald A. Bailey (D)
1986
1987 Bob Casey Sr. (D) Mark Singel (D) G. Davis Greene Jr. (D)[n] 26R, 24D 102D, 101R 12D, 11R
1988 George H. W. Bush/
Dan Quayle (R) Green tickY
1989 Ernie Preate (R)[o] Barbara Hafer (R) Catherine Baker Knoll (D) 27R, 23D 104D, 99R
1990
1991 26R, 24D 107D, 96R 12R, 11D
Harris Wofford (D)[p]
1992 Bill Clinton/
Al Gore (D) Green tickY
1993 25D, 25R[q] 105D, 98R 11D, 10R
1994 26R, 24D[r]
1995 Tom Ridge (R) Mark Schweiker (R) 29R, 21D 102R, 101D Rick Santorum (R)
Tom Corbett (R)[n]
1996
1997 D. Michael Fisher (R)[o] Bob Casey Jr. (D) Barbara Hafer (R) 30R, 20D 104R, 99D
1998
1999 103R, 100D
2000 Al Gore/
Joe Lieberman (D) Red XN
2001 104R, 99D 11R, 10D
Mark Schweiker (R)[s] Robert Jubelirer (R)[t]
2002
2003 Ed Rendell (D) Catherine Baker Knoll (D)[l] Barbara Hafer (D) 29R, 21D 110R, 93D 12R, 7D
2004 John Kerry/
John Edwards (D) Red XN
Jerry Pappert (R)[n]
2005 Tom Corbett (R) Jack Wagner (D) Bob Casey Jr. (D)[u] 30R, 20D 110R, 93D
2006
2007 Robin Wiessmann (D)[n] 29R, 21D 102D, 101R[v] Bob Casey Jr. (D) 11D, 8R
2008 Barack Obama/
Joe Biden (D) Green tickY
Joe Scarnati (R)[t]
2009 Rob McCord (D)[o][7] 30R, 20D 104D, 99R 12D, 7R
Arlen Specter (D)[8]
2010
2011 Tom Corbett (R) Jim Cawley (R) Linda L. Kelly (R)[n][w] 112R, 91D Pat Toomey (R) 12R, 7D
2012
2013 Kathleen Kane (D)[o][9] Eugene DePasquale (D) 27R, 23D 111R, 92D 13R, 5D
2014
2015 Tom Wolf (D) Mike Stack (D) Tim Reese (I)[n] 30R, 20D 120R, 83D
2016 31R, 19D 119R, 84D Donald Trump/
Mike Pence (R) Green tickY
Bruce Beemer (D)[n][x]
2017 Josh Shapiro (D) Joe Torsella (D) 34R, 16D 121R, 82D
2018 10R, 8D[y]
2019 John Fetterman (D) 28R, 22D[z] 110R, 93D 9R, 9D
2020 28R, 21D, 1I[aa] Joe Biden/
Kamala Harris (D) Green tickY
2021 Timothy DeFoor (R) Stacy Garrity (R) 28R, 21D, 1I 113R, 90D
2022
2023 Josh Shapiro (D) Austin Davis (D) Michelle Henry (D)[n] 28R, 22D 102D, 101R John Fetterman (D) 9D, 8R
2024 Donald Trump/
JD Vance (R) Green tickY
2025 Dave Sunday (R) 27R, 23D[ab] Dave McCormick (R) 10R, 7D
Key to party colors and abbreviations for members of the U.S. Congress and other politicians or officials
Alaskan Independence (AKIP)
Know Nothing (KN)
American Labor (AL)
Anti-Jacksonian (Anti-J)
National Republican (NR)
Anti-Administration (AA)
Anti-Masonic (Anti-M)
Conservative (Con)
Covenant (Cov)
Democratic (D)
Democratic–Farmer–Labor (DFL)
Democratic–NPL (D-NPL)
Dixiecrat (Dix),
States' Rights (SR)
Democratic-Republican (DR)
Farmer–Labor (FL)
Federalist (F)
Pro-Administration (PA)
Free Soil (FS)
Fusion (Fus)
Greenback (GB)
Independence (IPM)
Independent Democrat (ID)
Independent Republican (IR)
Jacksonian (J)
Liberal (Lib)
Libertarian (L)
National Union (NU)
Nonpartisan League (NPL)
Nullifier (N)
Opposition Northern (O)
Opposition Southern (O)
Populist (Pop)
Progressive (Prog)
Prohibition (Proh)
Readjuster (Rea)
Republican (R)
Silver (Sv)
Silver Republican (SvR)
Socialist (Soc)
Union (U)
Unconditional Union (UU)
Vermont Progressive (VP)
Whig (W)
Independent (I)
Nonpartisan (NP)
  1. ^ a b From 1777 to 1790, Pennsylvania had a series of presidents and vice presidents of The Supreme Council.
  2. ^ A Federalist, Anthony Morris, was elected as Speaker of the chamber.[2]
  3. ^ a b c d The Federalists and Quids, who were moderates within the Democratic-Republican Party, formed a coalition in the 1805 election and called themselves the Constitutionalists; when they achieved a majority, they organized the chamber together, and this coalition continued in succeeding elections.[3]
  4. ^ Elected Nathaniel Boileau, a Democratic-Republican, as Speaker.
  5. ^ Some sources begin to cite the Federalists at the state level as Independent Republicans starting with this year.
  6. ^ The Whigs and Anti-Masons formed a coalition to govern the chamber.
  7. ^ A Democrat, William F. Packer, was elected as Speaker, and Democrats organized the chamber.
  8. ^ A Whig, Benjamin Matthias, was elected as Speaker of the Senate on the 7th Ballot.[4]
  9. ^ A Whig, Henry K. Strong, was elected in a coalition between the Whigs and Know-Nothings.
  10. ^ Effective with the Constitution of 1874, Senators began to serve four-year terms, after a transition period starting with the election of 1874 and continuing through the election of 1876.
  11. ^ Effective with the Constitution of 1874, House members began to serve two-year terms starting with the election of 1874.
  12. ^ a b c d e Died in office.
  13. ^ Due to the Democratic Lt. Governor casting the deciding vote, the Democrats took control of the chamber.
  14. ^ a b c d e f g h Appointed to fill a vacancy.
  15. ^ a b c d Resigned.
  16. ^ Appointed by Governor Casey in May 1991 after Heinz's death and won a special election in November 1991 for the remainder of the term.
  17. ^ Sen. Frank Pecora switched parties from Republican to Democratic, but in the case of ties, the Lt. Governor casts the deciding vote, and as a Democrat, he gave his party control.[5]
  18. ^ After months of turmoil, a special election result was thrown out that had been won by Democrat William G. Stinson, who had succeeded fellow Democrat Francis Lynch. A federal judge awarded the election to Republican Bruce Marks. Additionally, Democrat Eugene Scanlon's death in March 1994 gave Republicans control.[6]
  19. ^ As lieutenant governor, filled vacancy in office of governor.
  20. ^ a b As president pro tempore of the state Senate, filled vacancy in office of lieutenant governor.
  21. ^ Resigned following election to U.S. Senate.
  22. ^ Elected a Republican Speaker.
  23. ^ William H. Ryan Jr. served as acting Attorney General from January (when Corbett was inaugurated as governor) until Kelly's nomination was confirmed by the State Senate.
  24. ^ Republican Deputy Attorney General Bruce Castor served for 13 days from August 17–30 between Kane's resignation and Beemer's assumption of the office.
  25. ^ Democrat Conor Lamb won a special election to fill a vacancy for Pennsylvania's 18th Congressional District, left by Republican Timothy F. Murphy's resignation. Democrats Mary Gay Scanlon and Susan Wild won special elections to fill seats left vacant by Republicans Pat Meehan/
    Charlie Dent respectively.
  26. ^ Republican Don C. White resigned in February 2019 and Republican Joe Pittman was elected in May 2019 to succeed him.[citation needed] Also, Republican Mike Folmer resigned in September 2019 and Republican Dave Arnold was elected to succeed him in a January 2020 special election.[10][11]
  27. ^ John Yudichak (District 14) switched parties from Democratic to Independent in November 2019 and began caucusing with the Republican majority.[12]
  28. ^ Ryan Aument (District 36) resigned December 31, 2024 to become State Director to U.S. Senator Dave McCormick. James Andrew Malone was elected in a special election on March 25, 2025, flipping the seat to Democrats.

See also

[edit]

References

[edit]
  1. ^ "Voting and Election Statistics, Current Registration Statistics". Pennsylvania Department of State. Retrieved July 29, 2025.
  2. ^ "Anthony Morris". The official website for the Pennsylvania General Assembly. Retrieved 2021-06-24.
  3. ^ "John Randolph and the Old Republicans". Boundless. July 21, 2015. Archived from the original on September 19, 2015.
  4. ^ Journal of the Senate of the Commonwealth of Pennsylvania. 1851. pp. 8–9.
  5. ^ "Frank A Pecora". Pennsylvania General Assembly. Retrieved January 3, 2017.
  6. ^ Eshleman Jr., Russell E. (March 11, 1994). "Pa. Sen. Scanlon Dies, Leaving Senate in Grief, GOP in Lead Regardless of the Stinson Outcome, the Republicans Are Now the Majority and Can Control the Action". Philadelphia Inquirer. p. B06. Archived from the original on January 3, 2016.
  7. ^ Levy, Marc (January 31, 2015). "Pennsylvania treasurer Rob McCord says he will plead guilty to federal charges". Lancaster Online. Associated Press. Retrieved May 20, 2015.
  8. ^ Switched parties from Republican to Democratic on April 28, 2009.
  9. ^ Cullinane, Susannah; Ellis, Ralph (2016-08-16). "Pennsylvania Attorney General Kathleen Kane resigning". CNN Politics. Retrieved 2021-06-24.
  10. ^ "PoliticsPA". Retrieved 2021-06-24.
  11. ^ "Dave Arnold wins 48th Senatorial District special election". Local 21 News. 2020-01-14. Retrieved 2021-06-24.
  12. ^ "Pa. Dems lose a state senator: John Yudichak of Luzerne County declares himself independent, will caucus with GOP". pennlive. 2019-11-19. Retrieved 2021-06-24.
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