List of counties in Pennsylvania

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Adams CountyAllegheny CountyArmstrong CountyBeaver CountyBedford CountyBerks CountyBlair CountyBradford CountyBucks CountyButler CountyCameron CountyCambria CountyCarbon CountyCentre CountyClarion CountyChester CountyClearfield CountyClinton CountyColumbia CountyCrawford CountyCumberland CountyDauphin CountyDelaware CountyElk CountyErie CountyFayette CountyForest CountyFranklin CountyFulton CountyGreene CountyHuntingdon CountyIndiana CountyJefferson CountyJuniata CountyLackawanna CountyLancaster CountyLawrence CountyLebanon CountyLehigh CountyLuzerne CountyLycoming CountyMcKean CountyMercer CountyMifflin CountyMonroe CountyMontgomery CountyMontour CountyNorthamton CountyNorthumberland CountyPerry CountyPhiladelphia CountyPike CountyPotter CountySchuylkill CountySnyder CountySomerset CountySullivan CountySusquehanna CountyTioga CountyUnion CountyVenango CountyWarren CountyWashington CountyWayne CountyWestmoreland CountyWyoming CountyYork County
Pennsylvania counties (clickable map)

The following is a list of the sixty-seven counties of the Commonwealth of Pennsylvania in the United States of America. The city of Philadelphia is coterminous with Philadelphia County, and governmental functions have been consolidated since 1854. Eight of the ten most populous counties are in the Southeastern portion of the state, including four out of the top five as well.

A map of the counties of Pennsylvania in 1836

FIPS code[edit]

The Federal Information Processing Standard (FIPS) code, used by the United States government to uniquely identify counties, is provided with each entry. FIPS codes are five-digit numbers; for Pennsylvania the codes start with 42 and are completed with the three-digit county code. The FIPS code for each county in the table links to census data for that county.[1]

Alphabetical list[edit]

FIPS code
County seat
Adams County001Gettysburg1800Parts of York County.John Adams,second U.S. President101,407522 sq mi
(1,352 km2)
State map highlighting Adams County
Allegheny County003Pittsburgh1788Parts of Washington and Westmoreland Counties.Delaware word for the Allegheny River, which possibly translates to "beautiful river"1,223,348745 sq mi
(1,930 km2)
State map highlighting Allegheny County
Armstrong County005Kittanning1800Parts of Allegheny, Lycoming, and Westmoreland Counties.John Armstrong, Revolutionary War general68,941664 sq mi
(1,720 km2)
State map highlighting Armstrong County
Beaver County007Beaver1800Parts of Allegheny and Washington Counties.Beaver River, itself named for the eponymous animal that was sighted along its banks170,539444 sq mi
(1,150 km2)
State map highlighting Beaver County
Bedford County009Bedford1771Parts of Cumberland County.Fort Bedford, which is named for John Russell, 4th Duke of Bedford49,7621,015 sq mi
(2,629 km2)
State map highlighting Bedford County
Berks County011Reading1752Parts of Chester, Lancaster and Philadelphia Counties.The English county of Berkshire411,442866 sq mi
(2,243 km2)
State map highlighting Berks County
Blair County013Hollidaysburg1846Parts of Huntingdon and Bedford Counties.John Blair, Pennsylvania state legislator127,089527 sq mi
(1,365 km2)
State map highlighting Blair County
Bradford County015Towanda1810Parts of Luzerne and Lycoming Counties; originally called Ontario County, renamed as Bradford County in 1812.William Bradford, second U.S. Attorney General62,6221,161 sq mi
(3,007 km2)
State map highlighting Bradford County
Bucks County017Doylestown1682One of the original counties at the formation of PennsylvaniaThe English county of Buckinghamshire625,249622 sq mi
(1,611 km2)
State map highlighting Bucks County
Butler County019Butler1800Parts of Allegheny County.Richard Butler, Revolutionary War general183,862795 sq mi
(2,059 km2)
State map highlighting Butler County
Cambria County021Ebensburg1804Parts of Somerset and Huntingdon Counties.Cambria, the traditional name for Wales143,679693 sq mi
(1,795 km2)
State map highlighting Cambria County
Cameron County023Emporium1860Parts of Clinton, Elk, McKean, and Potter Counties.Simon Cameron, U.S. Senator from Pennsylvania5,085399 sq mi
(1,033 km2)
State map highlighting Cameron County
Carbon County025Jim Thorpe1843Parts of Monroe and Northampton Counties.Carbon, the element found in coal65,249387 sq mi
(1,002 km2)
State map highlighting Carbon County
Centre County027Bellefonte1800Parts of Lycoming, Mifflin, Northumberland, and Huntingdon Counties.Centre Furnance, the first industrial facility in the area153,9901,112 sq mi
(2,880 km2)
State map highlighting Centre County
Chester County029West Chester1682One of the original counties at the formation of Pennsylvania.The English city of Chester in the county of Cheshire498,886760 sq mi
(1,968 km2)
State map highlighting Chester County
Clarion County031Clarion1839Parts of Venango and Armstrong Counties.Clarion River, itself so named for its clarity39,988609 sq mi
(1,577 km2)
State map highlighting Clarion County
Clearfield County033Clearfield1804Parts of Lycoming and Huntingdon Counties; Clearfield functioned as a part of Centre County for judiciary purposes until 1822.The cleared fields from logging in the area81,6421,154 sq mi
(2,989 km2)
State map highlighting Clearfield County
Clinton County035Lock Haven1839Parts of Lycoming and Centre Counties.DeWitt Clinton, New York Governor and prominent statesman39,238898 sq mi
(2,326 km2)
State map highlighting Clinton County
Columbia County037Bloomsburg1813Parts of Northumberland and Luzerne Counties.Columbia, the first popular and poetic name for the United States67,295490 sq mi
(1,269 km2)
State map highlighting Columbia County
Crawford County039Meadville1800Parts of Allegheny County.William Crawford, surveyor who helped to open trans-Appalachian lands to settlement88,7651,038 sq mi
(2,688 km2)
State map highlighting Crawford County
Cumberland County041Carlisle1750Parts of Lancaster County.The historic English county of Cumberland235,406551 sq mi
(1,427 km2)
State map highlighting Cumberland County
Dauphin County043Harrisburg1785Parts of Lancaster County.Louis-Joseph, Dauphin of France268,100558 sq mi
(1,445 km2)
State map highlighting Dauphin County
Delaware County045Media1789Parts of Chester County.Delaware River, itself named for the Delaware tribe558,979191 sq mi
(495 km2)
State map highlighting Delaware County
Elk County047Ridgway1843Parts of Jefferson, McKean, and Clearfield Counties.Elk, which inhabit the forested county31,946832 sq mi
(2,155 km2)
State map highlighting Elk County
Erie County049Erie1800Parts of Allegheny County; attached to Crawford County until 1803.Lake Erie280,566799 sq mi
(2,069 km2)
State map highlighting Erie County
Fayette County051Uniontown1783Parts of Westmoreland County.The Marquis de Lafayette, French-born Revolutionary War general136,606798 sq mi
(2,067 km2)
State map highlighting Fayette County
Forest County053Tionesta1848Parts of Jefferson County; attached to Jefferson County until 1857.Chief natural feature7,716431 sq mi
(1,116 km2)
State map highlighting Forest County
Franklin County055Chambersburg1784Parts of Cumberland County.Benjamin Franklin, key founding father of the United States149,618771 sq mi
(1,997 km2)
State map highlighting Franklin County
Fulton County057McConnellsburg1850Parts of Bedford County.Robert Fulton, inventor of the steamboat14,845438 sq mi
(1,134 km2)
State map highlighting Fulton County
Greene County059Waynesburg1796Parts of Washington County.Nathanael Greene, Revolutionary War general38,686578 sq mi
(1,497 km2)
State map highlighting Greene County
Huntingdon County061Huntingdon1787Parts of Bedford County.The historic English county of Huntingdonshire45,913889 sq mi
(2,302 km2)
State map highlighting Huntingdon County
Indiana County063Indiana1803Parts of Lycoming and Westmoreland Counties; it was attached to Westmoreland County until 1806.Native Americans88,880834 sq mi
(2,160 km2)
State map highlighting Indiana County
Jefferson County065Brookville1804Parts of Lycoming County. Attached to Westmoreland County until 1806 and to Indiana County until 1830.Thomas Jefferson, third U.S. President45,200657 sq mi
(1,702 km2)
State map highlighting Jefferson County
Juniata County067Mifflintown1831Parts of Mifflin County.Juniata River, itself named for the Iroquoian word Onayutta, meaning "Standing Stone"24,636394 sq mi
(1,020 km2)
State map highlighting Juniata County
Lackawanna County069Scranton1878Parts of Luzerne County.Lackawanna River, itself named for the Delaware word meaning "stream that forks"214,437465 sq mi
(1,204 km2)
State map highlighting Lackawanna County
Lancaster County071Lancaster1729Parts of Chester County.The English city of Lancaster519,445984 sq mi
(2,549 km2)
State map highlighting Lancaster County
Lawrence County073New Castle1849Parts of Beaver and Mercer Counties.James Lawrence, War of 1812 captain91,108363 sq mi
(940 km2)
State map highlighting Lawrence County
Lebanon County075Lebanon1813Parts of Dauphin and Lancaster Counties.Lebanon, the Biblical term for "White Mountain", which references the piety of the county's Moravian founders133,568363 sq mi
(940 km2)
State map highlighting Lebanon County
Lehigh County077Allentown1812Parts of Northampton County.Lehigh River349,497349 sq mi
(904 km2)
State map highlighting Lehigh County
Luzerne County079Wilkes-Barre1786Parts of Northumberland County.Anne-César, Chevalier de la Luzerne, French ambassador to the U.S. who aided republican causes320,918907 sq mi
(2,349 km2)
State map highlighting Luzerne County
Lycoming County081Williamsport1795Parts of Northumberland County.Lycoming Creek, itself named for the Delaware word iacomic meaning "great steam"116,1111,244 sq mi
(3,222 km2)
State map highlighting Lycoming County
McKean County083Smethport1804Parts of Lycoming County; Attached to Centre County until 1814 and to Lycoming County until 1826 for judicial and elective purposes. McKean was fully organized only in 1826.Thomas McKean, second Governor of Pennsylvania43,450984 sq mi
(2,549 km2)
State map highlighting McKean County
Mercer County085Mercer1800Parts of Allegheny County.Hugh Mercer, Revolutionary War general116,638683 sq mi
(1,769 km2)
State map highlighting Mercer County
Mifflin County087Lewistown1789Parts of Cumberland and Northumberland Counties.Thomas Mifflin, first Governor of Pennsylvania46,682415 sq mi
(1,075 km2)
State map highlighting Mifflin County
Monroe County089Stroudsburg1836Parts of Pike and Northampton Counties.James Monroe, fifth U.S President169,842617 sq mi
(1,598 km2)
State map highlighting Monroe County
Montgomery County091Norristown1784Parts of Philadelphia County.The historic Welsh county of Montgomeryshire or Richard Montgomery, a general killed in the 1775 Battle of Quebec799,874487 sq mi
(1,261 km2)
State map highlighting Montgomery County
Montour County093Danville1850Parts of Columbia County.Madame Montour, colonial ambassador to the Native Americans18,267132 sq mi
(342 km2)
State map highlighting Montour County
Northampton County095Easton1752Parts of Bucks County.The English town of Northampton297,735377 sq mi
(976 km2)
State map highlighting Northampton County
Northumberland County097Sunbury1772Parts of Lancaster, Berks, Bedford, Cumberland, and Northampton Counties.The English county of Northumberland94,528477 sq mi
(1,235 km2)
State map highlighting Northumberland County
Perry County099New Bloomfield1820Parts of Cumberland County.Oliver Hazard Perry, War of 1812 commodore45,969556 sq mi
(1,440 km2)
State map highlighting Perry County
Philadelphia County101Philadelphia1682One of the original counties at the formation of Pennsylvania."Brotherly love" from Greek philos ("love") and adelphos ("brother")1,526,006143 sq mi
(370 km2)
State map highlighting Philadelphia County
Pike County103Milford1814Parts of Wayne County.Zebulon Pike, explorer of the American West57,369567 sq mi
(1,469 km2)
State map highlighting Pike County
Potter County105Coudersport1804From Lycoming county. Attached to Lycoming County until 1826 and to McKean County until 1835 for judicial purposes, Potter was not fully organized until 1835.James Potter, Revolutionary War general17,4571,081 sq mi
(2,800 km2)
State map highlighting Potter County
Schuylkill County107Pottsville1811Parts of Berks and Northampton Counties.Schuylkill River, itself a Dutch corruption of a Delaware word possibly meaning "hidden river"148,289778 sq mi
(2,015 km2)
State map highlighting Schuylkill County
Snyder County109Middleburg1855Parts of Union County.Simon Snyder, third Governor of Pennsylvania39,702332 sq mi
(860 km2)
State map highlighting Snyder County
Somerset County111Somerset1795Parts of Bedford County.The historic English county of Somerset77,7421,081 sq mi
(2,800 km2)
State map highlighting Somerset County
Sullivan County113Laporte1847Parts of Lycoming County; attached to Lycoming until 1848.John Sullivan, Revolutionary War general6,428452 sq mi
(1,171 km2)
State map highlighting Sullivan County
Susquehanna County115Montrose1810Parts of Luzerne County ; attached to Luzerne County until 1812.Susquehanna River, itself named after an Algonquin word for "muddy current"43,356832 sq mi
(2,155 km2)
State map highlighting Susquehanna County
Tioga County117Wellsboro1804Parts of Lycoming County; attached to Lycoming until 1812.Tioga River, itself named for the Delaware word for "forks of the stream"41,9811,137 sq mi
(2,945 km2)
State map highlighting Tioga County
Union County119Lewisburg1813Parts of Northumberland County.The federal union of the states44,947317 sq mi
(821 km2)
State map highlighting Union County
Venango County121Franklin1800Parts of Allegheny and Lycoming Counties; attached to until 1805.A corruption of the Delaware word onenge, meaning "otter"54,984683 sq mi
(1,769 km2)
State map highlighting Venango County
Warren County123Warren1800Parts of Allegheny and Lycoming counties; attached to Crawford County until 1805 and then to Venango until Warren was formally organized in 1819.Joseph Warren, Revolutionary War general41,815898 sq mi
(2,326 km2)
State map highlighting Warren County
Washington County125Washington1781Parts of Westmoreland County.George Washington, first U.S. President207,820861 sq mi
(2,230 km2)
State map highlighting Washington County
Wayne County127Honesdale1798Parts of Northampton County.Anthony Wayne, Revolutionary War general52,822751 sq mi
(1,945 km2)
State map highlighting Wayne County
Westmoreland County129Greensburg1773Parts of Bedford County.The historic English county of Westmorland365,1691,036 sq mi
(2,683 km2)
State map highlighting Westmoreland County
Wyoming County131Tunkhannock1842Parts of Luzerne County.The Delaware word xwéːwaməŋk, meaning "at the big river flat"28,276405 sq mi
(1,049 km2)
State map highlighting Wyoming County
York County133York1749Parts of Lancaster County.The English city of York434,972910 sq mi
(2,357 km2)
State map highlighting York County

See also[edit]


  1. ^ "EPA County FIPS Code Listing". US Environmental Protection Agency. Retrieved July 24, 2007. 
  2. ^ "EPA County FIPS Code Listing". Retrieved 2008-02-23. 
  3. ^ a b c National Association of Counties. "NACo - Find a county". Retrieved 2008-04-30. [dead link]
  4. ^ "Pennsylvania Counties". Pennsylvania State Archives. Retrieved 2009-09-14. 
  5. ^