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 ==