Pennsylvania
Postal abbreviation PA. 2,176 ZIP codes across 67 counties.
| Population | 13,018,639 |
|---|---|
| Postal abbreviation | PA |
| ZIP codes | 2,176 ZIP codes → |
| Area codes | 215223267272412445484570582610717724814835878 |
| Time zone | Eastern |
| Counties | 67 |
Largest cities by population
Philadelphia · 1,579,706Pittsburgh · 304,759Allentown · 125,976Reading · 95,242Erie · 93,850Bethlehem · 77,956Scranton · 76,033Lancaster · 57,719Levittown · 50,926Harrisburg · 50,287York · 44,938Altoona · 43,196State College · 41,050Norristown · 35,893Chester · 33,619Bethel Park · 32,881Drexel Hill · 30,451Hazleton · 30,111Easton · 29,739Monroeville · 28,295Williamsport · 27,612Lebanon · 26,536King of Prussia · 25,857Pottstown · 23,476Chambersburg · 22,319Allison Park · 22,045Carlisle · 21,852New Castle · 21,579Murrysville · 20,817West Chester · 20,666
Largest counties by population
Philadelphia County · 1,579,706Allegheny County · 1,238,177Montgomery County · 867,573Bucks County · 647,461Delaware County · 579,222Lancaster County · 557,931Chester County · 547,840York County · 462,924Berks County · 433,015Lehigh County · 378,792
Counties in Pennsylvania
Adams CountyAllegheny CountyArmstrong CountyBeaver CountyBedford CountyBerks CountyBlair CountyBradford CountyBucks CountyButler CountyCambria CountyCameron CountyCarbon CountyCentre CountyChester CountyClarion 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 CountyNorthampton CountyNorthumberland CountyPerry CountyPhiladelphia CountyPike CountyPotter CountySchuylkill CountySnyder CountySomerset CountySullivan CountySusquehanna CountyTioga CountyUnion CountyVenango CountyWarren CountyWashington CountyWayne CountyWestmoreland CountyWyoming CountyYork County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.