Pennsylvania

List of Counties in Pennsylvania

The state of Pennsylvania has a total of 67 counties. Bucks County is the oldest (formed in 1682) and Lackawant to County is the newest (established in 1878).

Philadelphia County is the most populous, with a population of 1,526,006 people. Lycoming County has the most land area (3,222 km2), while Montour County has the smallest (342 km2).

Please find all Pennsylvania counties listed alphabetically below.

  • Adams County, PA
  • Allegheny County, PA
  • Armstrong County, PA
  • Beaver County, PA
  • Bedford County, PA
  • Berks County, PA
  • Blair County, PA
  • Bradford County, PA
  • Bucks County, PA
  • Butler County, PA
  • Cambria County, PA
  • Cameron County, PA
  • Carbon County, PA
  • Centre County, PA
  • Chester County, PA
  • Clarion County, PA
  • Clearfield County, PA
  • Clinton County, PA
  • Columbia County, PA
  • Crawford County, PA
  • Cumberland County, PA
  • Dauphin County, PA
  • Delaware County, PA
  • Elk County, PA
  • Erie County, PA
  • Fayette County, PA
  • Forest County, PA
  • Franklin County, PA
  • Fulton County, PA
  • Greene County, PA
  • Huntingdon County, PA
  • Indiana County, PA
  • Jefferson County, PA
  • Juniata County, PA
  • Lackawanna County, PA
  • Lancaster County, PA
  • Lawrence County, PA
  • Lebanon County, PA
  • Lehigh County, PA
  • Luzerne County, PA
  • Lycoming County, PA
  • McKean County, PA
  • Mercer County, PA
  • Mifflin County, PA
  • Monroe County, PA
  • Montgomery County, PA
  • Montour County, PA
  • Northampton County, PA
  • Northumberland County, PA
  • Perry County, PA
  • Philadelphia County, PA
  • Pike County, PA
  • Potter County, PA
  • Schuylkill County, PA
  • Snyder County, PA
  • Somerset County, PA
  • Sullivan County, PA
  • Susquehanna County, PA
  • Tioga County, PA
  • Union County, PA
  • Venango County, PA
  • Warren County, PA
  • Washington County, PA
  • Wayne County, PA
  • Westmoreland County, PA
  • Wyoming County, PA
  • York County, PA

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