Pennsylvania's 10th congressional district is currently located in the south-central region of the state. It encompasses all of Dauphin County as well as parts of Cumberland County and York County. The district includes the cities of Harrisburg and York.
Recent election results from statewide races Year Office Results2008 PresidentMcCain 50% – 48% Attorney GeneralCorbett 66% – 34% Auditor GeneralWagner 51% – 49%2010 SenateToomey 62% – 38% GovernorCorbett 66% – 34%2012 PresidentRomney 54% – 46% SenateSmith 52% – 48%2014 GovernorCorbett 53% – 47%2016 PresidentTrump 53% – 43% SenateToomey 55% – 42% Attorney GeneralRafferty Jr. 56% – 44% Auditor GeneralDePasquale 47.8% – 47.7% TreasurerVoit III 51% – 43%2018 SenateCasey Jr. 49.3% – 48.7% GovernorWolf 54% – 44%2020 PresidentTrump 51% – 47% Attorney GeneralHeidelbaugh 50% – 47% Auditor GeneralDeFoor 54% – 42% TreasurerGarrity 52% – 44%2022 SenateOz 49% – 48% GovernorShapiro 55% – 43%2024 PresidentTrump 52% – 47% SenateMcCormick 50% – 46% TreasurerGarrity 55% – 42%
Demographics According to the APM Research Lab's Voter Profile Tools (featuring the U.S. Census Bureau's 2019 American Community Survey), the district contained about 559,000 potential voters (citizens, age 18+). Of these, 80% are White, 10% Black, and 6% Latino. Immigrants make up 5% of the district's potential voters. Median income among households (with one or more potential voter) in the district is about $67,300, while 9% of households live below the poverty line. As for the educational attainment of potential voters in the district, 9% of those 25 and older have not earned a high school diploma, while 30% hold a bachelor's or higher degree.
History Prior to 2019, the district was located in the northeastern part of the state. The Supreme Court of Pennsylvania redrew the district in 2018 after ruling the previous map unconstitutional because of gerrymandering. The court added State College to the old district's boundaries while removing some Democratic-leaning areas and redesignated it the twelfth district; an area encompassing Harrisburg and York was numbered as the 10th. The new 10th district is represented by Republican Scott Perry, who previously represented the old fourth district.
The district was one of the 12 original districts created prior to the 4th Congress. In 2006, when it was still located in northeastern Pennsylvania, the 10th district experienced one of the greatest party shifts among all House seats that switched party control: in 2004, Republican Don Sherwood won with an 86% margin of victory over his nearest opponent and two years later, Democrat Chris Carney unseated Sherwood by a 53%–47% margin. In 2008, Carney won reelection by 12 points but the district swung back in 2010, electing Republican Tom Marino. The district was mostly Republican in its political composition, an aspect of the district that was reflected especially well in presidential elections. In 2004, President George W. Bush won 60 percent of the vote in the district and in 2008, Senator John McCain beat Senator Barack Obama here by a margin of 54 percent to 45 percent. Nonetheless, Carney easily won reelection as a Democrat the same year McCain won the district. However, in the 2010 midterm elections, Marino unseated Carney by a 55%–45% margin. In 2016, local businessman and former mayor of Lewisburg, Mike Molesevich challenged Marino for the seat, but he fell to the Republican in November by more than two to one. In 2018, Marino won election to a redrawn 12th district; while he remained the congressman for the 10th district into January 2019, he moved within the new district's boundaries beforehand.
District boundaries 2003–2013
The Pennsylvania 10th was the third-largest congressional district in the state. The district encompassed the following counties and areas:
Bradford County Lackawanna County excluding Old Forge, Moosic, Scranton, and Dunmore but including Clarks Summit Luzerne County Back Mountain area, including Dallas, Shavertown, Trucksville, Kingston, Wyoming, and Swoyersville Lycoming County Sullivan/Columbia/Montour County boundaries west to the West Branch of the Susquehanna River (except Montoursville), north to Cogan House Montour County Northumberland County Pike County Snyder County Sullivan County Susquehanna County Tioga County Ward Township Union County Wayne County Wyoming County
District boundaries 2013–2019
On June 8, 2012, The Pennsylvania Legislative Reapportionment Commission adopted a revised final redistricting plan. On May 8, 2013, The state Supreme Court unanimously approved the Legislative Reapportionment Commission's 2012 Revised Final Plan. The resulting district encompassed the following areas: Bradford County Juniata County Parts of Lackawanna County Including: Abington Township, Benton Township, Ransom, Newton, South Abington, Clarks Summit, Clarks Green, Glenburn, West Abington, Dalton, La Plume, North Abington, Scott, Greenfield, Fell, Vandling, Jefferson, Olyphant, Madison, Covington, Clifton, Moscow, Elmhurst, Roaring Brook, parts of Carbondale, and parts of Archbald. Lycoming County Mifflin County Parts of Monroe County Including: Barrett, East Stroudsburg, Jackson, Mount Pocono, Paradise, Pocono, Price, Stroudsburg, and parts of Stroud. Parts of Northumberland County Including: Delaware, East Chillisquaque, West Chillisquaque, Watsontown, Lewis, Turbotville, Turbot, Milton, Point, Northumberland Parts of Perry County Including: Toboyne, Jackson, Blain, Northeast Madison, Southwest Madison, Landisburg, Tyrone, Saville, Centre, New Bloomfield, Tuscarora, Juniata, Greenwood, Millerstown, Oliver, Newport, Miller, Howe, Liverpool Township, Liverpool, Buffalo, Watts, and New Buffalo. Pike County Snyder County Sullivan County Susquehanna County Majority of Tioga County With the exception of Clymer Township, Chatham Township, Gaines Township, and the majority of Shippen Township Union County Wayne County
Current counties and municipalities
Cumberland County (25) Camp Hill, Carlisle, Cooke Township, Dickinson Township, East Pennsboro Township, Hampden Township, Lemoyne, Lower Allen Township, Lower Frankford Township, Mechanicsburg, Middlesex Township, Monroe Township, Mount Holly Springs, New Cumberland, Newville, North Middleton Township, North Newton Township (part; also 13th), Penn Township, Shiremanstown, Silver Spring Township, South Middleton Township, South Newton Township, Upper Allen Township, West Pennsboro Township, Wormleysburg
Dauphin County (40)
All 40 municipalities
York County (26) Carroll Township, Conewago Township, Dillsburg, Dover Borough, Dover Township, East Manchester Township, Fairview Township, Franklin Township, Franklintown, Goldsboro, Jackson Township (part; also 11th), Lewisberry, Manchester, Manchester Township, Monaghan Township, Mount Wolf, Newberry Township, North York, Spring Garden Township, Springettsbury Township, Warrington Township, Washington Township, West Manchester Township, West York, York, York Haven
List of members representing the district District created in 1795.
1795–1813: one seat
Representative Party Years Congress Electoral history District established March 4, 1795 David Bard Democratic-Republican March 4, 1795 –March 3, 1799 Elected in 1794.Re-elected in 1796.Lost re-election. Henry Woods Federalist March 4, 1799 –March 3, 1803 Elected in 1798.Re-elected in 1800.Redistricted to the and lost re-election. William Hoge Democratic-Republican March 4, 1803 –October 15, 1804 Redistricted from the and re-elected in 1802.Resigned.Vacant October 15, 1804 –November 27, 1804 John Hoge Democratic-Republican November 27, 1804 –March 3, 1805 Elected November 2, 1804 to finish his brother's term and seated November 27, 1804.Retired. John Hamilton Democratic-Republican March 4, 1805 –March 3, 1807 Elected in 1804.Lost re-election. William Hoge Democratic-Republican March 4, 1807 –March 3, 1809 Elected in 1806.Retired. Aaron Lyle Democratic-Republican March 4, 1809 –March 3, 1813 Elected in 1808.Re-elected in 1810.Redistricted to the .
1813–1823: two seats
Congress Years Seat A Seat B Representative Party Electoral history Representative Party Electoral history March 4, 1813 –March 3, 1815 Isaac Smith Democratic-Republican Elected in 1812.Lost re-election. Jared Irwin Democratic-Republican Elected in 1812.Retired. March 4, 1815 –March 3, 1817 William Wilson Democratic-Republican Elected in 1814.Re-elected in 1816.Retired. March 4, 1817 –?, 1817 David Scott Democratic-Republican Elected in 1816.Resigned. ?, 1817 –October 14, 1817 Vacant October 14, 1817 –March 3, 1819 John Murray Democratic-Republican Elected to finish Scott's term.Re-elected in 1818.Retired. March 4, 1819 –March 3, 1821 George Denison Democratic-Republican Elected in 1818.Re-elected in 1820.Retired. March 4, 1821 –?, 1821 William Cox Ellis Democratic-Republican Elected in 1820.Resigned and lost re-election. ?, 1821 –October 9, 1821 Vacant October 9, 1821 –March 3, 1823 Thomas Murray Jr. Democratic-Republican Elected to finish Ellis's term.Retired.
1823–present: one seat