Pennsylvania's 15th congressional district has been located in western and central Pennsylvania since 2019. Since 2023, the district includes all of Armstrong, Cameron, Centre, Clarion, Clearfield, Clinton, Elk, Forest, Jefferson, McKean, Potter, Snyder, Tioga, Union, and Warren counties and parts of Indiana, Lycoming, and Venango counties.
From 2013 to 2019, the district stretched from the suburbs east of Harrisburg to communities east of Allentown and the New Jersey border. Counties located in the district included all of Lehigh County and parts of Berks County, Dauphin County, Lebanon County, and Northampton County.
From 2003 to 2013 it comprised all of Northampton County, most of Lehigh County, and small parts of Berks and Montgomery counties. The district included the Lehigh Valley, Indian Valley and Upper Perkiomen Valley regions. In the mid-20th century, it included Tioga County.
In its former boundaries, it had a slight Democratic tilt in registered voters due to the presence of fairly large cities such as Allentown and Bethlehem, with industrial histories. The Democrats in the Lehigh Valley are generally considered more moderate than their counterparts in the Philadelphia area, particularly on social issues. The district has elected Republican candidates for all but six years since 1979. During 1999–2005, Pat Toomey represented the district. From 2005 to 2018, fellow Republican Charlie Dent represented the district; in September 2017 he announced he would be retiring and not seek re-election in 2018. Democrat Susan Wild won the subsequent election.
The Supreme Court of Pennsylvania redrew the district in February 2018 after ruling the previous map unconstitutional because it had gerrymandered too much on behalf of the Republican Party. In 2012 Democrats had won only five of the state's 18 congressional districts, the year the previous redistricting by the legislature took effect, although they won the House statewide popular vote by 1.5 percentage points."Adventures in Extreme Gerrymandering: See the Fair and Wildly Unfair Maps We Made for Pennsylvania", QUOCTRUNG BUI and NATE COHN, New York Times, 17 January 2018
In the redistricting, the old 15th district had its boundaries compressed around Allentown and became the 7th district, while the old 5th district had its boundaries adjusted and became the 15th district for the 2018 election and representation thereafter. It has been represented by Glenn Thompson since January 3, 2019.
Recent election results from statewide races Year Office Results2008 PresidentMcCain 55–43% Attorney GeneralCorbett 65–35% Auditor GeneralWagner 52–48%2010 SenateToomey 63–37% GovernorCorbett 67–33%2012 PresidentRomney 62–38% SenateSmith 61–39%2014 GovernorCorbett 56–44%2016 PresidentTrump 66–30% SenateToomey 62–31% Attorney GeneralRafferty Jr. 64–36% Auditor GeneralBrown 59–34% TreasurerVoit III 57–35%2018 SenateBarletta 59–39% GovernorWagner 58–40%2020 PresidentTrump 68–31% Attorney GeneralHeidelbaugh 65–33% Auditor GeneralDeFoor 68–28% TreasurerGarrity 67–30%2022 SenateOz 64–33% GovernorMastriano 60–38%2024 PresidentTrump 69–31% SenateMcCormick 66–31% TreasurerGarrity 69–28%
Counties and municipalities Armstrong County (45)
All 45 municipalities
Cameron County (7)
All 7 municipalities
Centre County (34)
All 34 municipalities
Clarion County (34)
All 34 municipalities
Clearfield County (50)
All 50 municipalities
Clinton County (28)
All 28 municipalities
Elk County (3)
All 3 municipalities Forest County (9) All 9 municipalities
Indiana County (34)
Banks Township, Canoe Township, East Mahoning Township, Glen Campbell, Grant Township, Marion Center, Montgomery Township, North Mahoning Township, Smicksburg, South Mahoning Township (part; also 14th), West Mahoning Township
Jefferson County (34)
All 34 municipalities
Lycoming County (32)
Anthony Township, Armstrong Township, Bastress Township, Brady Township, Brown Township, Cascade Township, Cogan House Township, Cummings Township, Duboistown, Gamble Township, Hepburn Township, Lewis Township, Lycoming Township, Jackson Township, Jersey Shore, Limestone Township, McHenry Township, McIntyre Township, McNett Township, Mifflin Township, Nippenose Township, Old Lycoming Township, Piatt Township Pine Townshop, Porter Township, Salladasburg, South Williamsport, Susquehanna Township, Washington Township, Watson Township, Williamsport (part; also 9th) Woodward Township
McKean County (22)
All 22 municipalities
Potter County (30)
All 30 municipalities
Snyder County (21)
All 21 municipalities
Tioga County (34)
All 34 municipalities
Union County (14)
All 14 municipalities Venango County (19) Allegheny Township, Cherrytree Township, Clinton Township, Clintonville, Cornplanter Township, Cranberry Township, Emlenton, Oakland Township, Oil City, Oil Creek Township, Pinegrove Township, Pleasantville, Plum Township, President Township, Richland Township, Rockland Township, Rouseville, Scrubgrass Township, Victory Township (part; also 16th)
Warren County (27)
All 27 municipalities
List of members representing the district Member Party Years Congress Electoral history Location District established March 4, 1813 Vacant March 4, 1813 –May 14, 1813 Representative-elect Abner Lacock was elected in 1812 but resigned February 24, 1813. 1813–1823 Thomas Wilson Democratic-Republican May 14, 1813 –March 3, 1817 Elected to finish Lacock's term.Re-elected in 1814.Retired. Robert Moore Democratic-Republican March 4, 1817 –March 3, 1821 Elected in 1816.Re-elected in 1818.Lost re-election. Patrick Farrelly Democratic-Republican March 4, 1821 –March 3, 1823 Elected in 1820.Redistricted to the . Thomas Patterson Democratic-Republican March 4, 1823 –March 3, 1825 Redistricted from the and re-elected in 1822.Retired. 1823–1833 Joseph Lawrence Anti-Jacksonian March 4, 1825 –March 3, 1829 Elected in 1824.Re-elected in 1826.Lost re-election. William McCreery Jacksonian March 4, 1829 –March 3, 1831 Elected in 1828.Lost re-election. Thomas M. T. McKennan Anti-Masonic March 4, 1831 –March 3, 1833 Elected in 1830.Redistricted to the . Andrew Beaumont Jacksonian March 4, 1833 –March 3, 1837 Elected in 1832.Re-elected in 1834.Retired. 1833–1843 David Petrikin Democratic March 4, 1837 –March 3, 1841 Elected in 1836.Re-elected in 1838. Benjamin A. Bidlack Democratic March 4, 1841 –March 3, 1843 Elected in 1840.Redistricted to the . Henry Nes IndependentDemocratic March 4, 1843 –March 3, 1845 Elected in 1843. 1843–1853 Moses McClean Democratic March 4, 1845 –March 3, 1847 Elected in 1844. Henry Nes Whig March 4, 1847 –September 10, 1850 Elected in 1846.Re-elected in 1848.Died. Vacant September 10, 1850 –December 2, 1850 Joel B. Danner Democratic December 2, 1850 –March 3, 1851 Elected to finish Nes's term. William H. Kurtz Democratic March 4, 1851 –March 3, 1853 Elected in 1850.Redistricted to the . James Gamble Democratic March 4, 1853 –March 3, 1855 Redistricted from the and re-elected in 1852. 1853–1863 John J. Pearce Opposition March 4, 1855 –March 3, 1857 Elected in 1854.Retired. Allison White Democratic March 4, 1857 –March 3, 1859 Elected in 1856.Lost re-election. James T. Hale Republican March 4, 1859 –March 3, 1863 Elected in 1858.Re-elected in 1860.Redistricted to the . Joseph Bailey Democratic March 4, 1863 –March 3, 1865 Redistricted from the and re-elected in 1862. 1863–1873 Adam J. Glossbrenner Democratic March 4, 1865 –March 3, 1869 Elected in 1864.Re-elected in 1866.Lost re-election. Richard J. Haldeman Democratic March 4, 1869 –March 3, 1873 Elected in 1868.Re-elected in 1870.Retired. John A. Magee Democratic March 4, 1873 –March 3, 1875 Elected in 1872.Lost renomination. 1873–1883 Joseph Powell Democratic March 4, 1875 –March 3, 1877 Elected in 1874.Lost re-election. Edward Overton Jr. Republican March 4, 1877 –March 3, 1881 Elected in 1876.Re-elected in 1878.Lost renomination. Cornelius C. Jadwin Republican March 4, 1881 –March 3, 1883 Elected in 1880.Lost re-election. George A. Post Democratic March 4, 1883 –March 3, 1885 Elected in 1882. 1883–1903 Frank C. Bunnell Republican March 4, 1885 –March 3, 1889 Elected in 1884.Re-elected in 1886.Retired. Myron B. Wright Republican March 4, 1889 –November 13, 1894 Elected in 1888.Re-elected in 1890.Re-elected in 1892.Re-elected in 1894.Died. Vacant November 13, 1894 –February 23, 1895 Edwin J. Jorden Republican February 23, 1895 –March 3, 1895 Elected to finish Wright's term.Retired. Vacant March 4, 1895 –November 5, 1895 James H. Codding Republican November 5, 1895 –March 3, 1899 Elected to finish Wright's termRe-elected in 1896.Retired. Charles F. Wright Republican March 4, 1899 –March 3, 1903 Elected in 1898.Re-elected in 1900.Retired. Elias Deemer Republican March 4, 1903 –March 3, 1907 Redistricted from the and re-elected in 1902.Re-elected in 1904.Lost re-election. 1903–1923 William B. Wilson Democratic March 4, 1907 –March 3, 1913 Elected in 1906.Re-elected in 1908.Re-elected in 1910.Lost re-election. Edgar R. Kiess Republican March 4, 1913 –March 3, 1923 Elected in 1912.Re-elected in 1914.Re-elected in 1916.Re-elected in 1918.Re-elected in 1920.Redistricted to the . Louis T. McFadden Republican March 4, 1923 –January 3, 1935 Redistricted from the and re-elected in 1922.Re-elected in 1924.Re-elected in 1926.Re-elected in 1928.Re-elected in 1930.Re-elected in 1932.Lost re-election. 1923–1933 1933–1943 Charles E. Dietrich Democratic January 3, 1935 –January 3, 1937 Elected in 1934.Lost re-election. Albert G. Rutherford Republican January 3, 1937 –August 10, 1941 Elected in 1936.Re-elected in 1938.Re-elected in 1940.Died. Vacant August 10, 1941 –November 4, 1941 Wilson D. Gillette Republican November 4, 1941 –January 3, 1945 Elected to finish Rutherford's term.Re-elected in 1942.Redistricted to the . 1943–1953 Robert F. Rich Republican January 3, 1945 –January 3, 1951 Elected in 1944.Re-elected in 1946.Re-elected in 1948.Retired. Alvin Bush Republican January 3, 1951 –January 3, 1953 Elected in 1950.Redistricted to the . Francis E. Walter Democratic January 3, 1953 –May 31, 1963 Redistricted from the and re-elected in 1952.Re-elected in 1954.Re-elected in 1956.Re-elected in 1958.Re-elected in 1960.Re-elected in 1962.Died. 1953–1963 1963–1973 Vacant May 31, 1963 –July 30, 1963 Fred B. Rooney Democratic July 30, 1963 –January 3, 1979 Elected to finish Walter's term.Re-elected in 1964.Re-elected in 1966.Re-elected in 1968.Re-elected in 1970.Re-elected in 1972.Re-elected in 1974.Re-elected in 1976.Lost re-election. 1973–1983 Donald L. Ritter Republican January 3, 1979 –January 3, 1993 Elected in 1978.Re-elected in 1980.Re-elected in 1982.Re-elected in 1984.Re-elected in 1986.Re-elected in 1988.Re-elected in 1990.Lost re-election. 1983–1993 Paul F. McHale Democratic January 3, 1993 –January 3, 1999 Elected in 1992.Re-elected in 1994.Re-elected in 1996.Retired. 1993–2003 Pat Toomey Republican January 3, 1999 –January 3, 2005 Elected in 1998.Re-elected in 2000.Re-elected in 2002.Retired to run for U.S. Senator. 2003–2013 Charlie Dent Republican January 3, 2005 –May 12, 2018 Elected in 2004.Re-elected in 2006.Re-elected in 2008.Re-elected in 2010.Re-elected in 2012.Re-elected in 2014.Re-elected in 2016.Resigned. 2013–2019 Vacant May 12, 2018 –November 27, 2018 Susan Wild Democratic November 27, 2018 –January 3, 2019 Elected to finish Dent's term.Redistricted to the . G. T. Thompson Republican January 3, 2019 –present Redistricted from the and re-elected in 2018.Re-elected in 2020.Re-elected in 2022.Re-elected in 2024. 2019–2023 2023–
Recent elections