The United States currently has 48 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 12 combined statistical areas, 16 metropolitan statistical areas, and 20 micropolitan statistical areas in Pennsylvania. As of 2023, the largest of these is the Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA, comprising the area around the state's largest city of Philadelphia in the southeast region of the state.
+The 48 United States statistical areas and 67 counties of the Commonwealth of PennsylvaniaCombined statistical area2025 population (est.)Core-based statistical area2025 population (est.)County-equivalent2025 population (est.)Metropolitan division2025 population (est.)Philadelphia-Camden-Vineland, PA-NJ-DE-MD CSA7,493,1714,677,877 ()Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA6,329,1184,237,805 (PA)Philadelphia County, Pennsylvania1,574,281 Philadelphia, PA MD2,155,218Delaware County, Pennsylvania580,937Montgomery County, Pennsylvania877,643 Montgomery County-Chester County-Bucks County, PA MD2,082,587Bucks County, Pennsylvania647,828Chester County, Pennsylvania557,116Camden County, New Jersey535,799Camden, NJ MD1,329,876Burlington County, New Jersey481,439Gloucester County, New Jersey312,638New Castle County, Delaware588,026Wilmington, DE-MD-NJ MD761,437Cecil County, Maryland107,131Salem County, New Jersey66,280Reading, PA MSA440,072Berks County, Pennsylvania440,072noneAtlantic City-Hammonton, NJ MSA372,047Atlantic County, New Jersey278,657Cape May County, New Jersey93,390Dover, DE MSA194,786Kent County, Delaware194,786Vineland, NJ MSA157,148Cumberland County, New Jersey157,148Pittsburgh-Weirton-Steubenville, PA-OH-WV CSA2,725,1982,612,730 (PA)Pittsburgh, PA MSA2,421,992Allegheny County, Pennsylvania1,225,035Westmoreland County, Pennsylvania349,324Washington County, Pennsylvania210,802Butler County, Pennsylvania200,169Beaver County, Pennsylvania166,032Fayette County, Pennsylvania123,021Lawrence County, Pennsylvania83,911Armstrong County, Pennsylvania63,698Weirton-Steubenville, WV-OH MSA112,468Jefferson County, Ohio63,597Hancock County, West Virginia27,729Brooke County, West Virginia21,142Hermitage, PA μSA107,860Mercer County, Pennsylvania107,860Indiana, PA μSA82,878Indiana County, Pennsylvania82,878Harrisburg–York–Lebanon, PA CSA1,344,598Harrisburg-Carlisle, PA MSA617,427Dauphin County, Pennsylvania293,351Cumberland County, Pennsylvania277,270Perry County, Pennsylvania46,806York-Hanover, PA MSA473,197York County, Pennsylvania473,197Lebanon, PA MSA146,380Lebanon County, Pennsylvania146,380Gettysburg, PA MSA107,594Adams County, Pennsylvania107,594Allentown-Bethlehem-East Stroudsburg, PA-NJ CSA1,054,794941,841 (PA)Allentown-Bethlehem-Easton, PA-NJ MSA887,615774,662 (PA)Lehigh County, Pennsylvania384,383Northampton County, Pennsylvania324,411Warren County, New Jersey112,953Carbon County, Pennsylvania65,868East Stroudsburg, PA μSA167,179Monroe County, Pennsylvania167,179noneScranton--Wilkes-Barre, PA MSA574,418Luzerne County, Pennsylvania332,126Lackawanna County, Pennsylvania216,502Wyoming County, Pennsylvania25,790Lancaster, PA MSA563,159Lancaster County, Pennsylvania563,159Erie-Meadville, PA CSA347,624Erie, PA MSA265,832Erie County, Pennsylvania265,832Meadville, PA μSA81,792Crawford County, Pennsylvania81,792Bloomsburg-Berwick-Sunbury, PA CSA255,949Sunbury, PA μSA107,788Northumberland County, Pennsylvania89,920Montour County, Pennsylvania17,868Bloomsburg-Berwick, PA μSA66,193Columbia County, Pennsylvania66,193Lewisburg, PA μSA42,313Union County, Pennsylvania42,313Selinsgrove, PA μSA39,655Snyder County, Pennsylvania39,655State College-DuBois, PA CSA235,493State College, PA MSA157,393Centre County, Pennsylvania157,393DuBois, PA μSA78,100Clearfield County, Pennsylvania78,100Johnstown-Somerset, PA CSA200,972Johnstown, PA MSA128,968Cambria County, Pennsylvania128,968Somerset, PA μSA72,004Somerset County, Pennsylvania72,004Altoona-Huntingdon, PA CSA162,542Altoona, PA MSA119,541Blair County, Pennsylvania119,541Huntingdon, PA μSA43,001Huntingdon County, Pennsylvania43,001Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA10,274,894160,652 (PA)Washington-Arlington-Alexandria, DC-VA-MD-WV MSA6,465,724Fairfax County, Virginia1,167,873Arlington-Alexandria-Reston, VA-WV MD3,247,647Prince William County, Virginia502,966Loudoun County, Virginia449,749Arlington County, Virginia243,931Stafford County, Virginia170,803City of Alexandria, Virginia160,662Spotsylvania County, Virginia155,388Fauquier County, Virginia76,503Jefferson County, West Virginia63,102Culpeper County, Virginia57,666City of Manassas, Virginia44,332Warren County, Virginia42,740City of Fredericksburg, Virginia30,393City of Fairfax, Virginia26,772City of Manassas Park, Virginia16,560Clarke County, Virginia15,609City of Falls Church, Virginia15,159Rappahannock County, Virginia7,439Prince George's County, Maryland970,374Washington, DC-MD MD1,840,612District of Columbia693,645Charles County, Maryland176,593Montgomery County, Maryland1,074,582Frederick-Gaithersburg-Bethesda, MD MD1,377,465Frederick County, Maryland302,883Baltimore-Columbia-Towson, MD MSA2,857,781Baltimore County, Maryland847,650noneAnne Arundel County, Maryland603,380Baltimore City, Maryland569,997Howard County, Maryland339,183Harford County, Maryland266,446Carroll County, Maryland176,677Queen Anne's County, Maryland54,448Hagerstown-Martinsburg, MD-WV MSA315,280Washington County, Maryland157,731Berkeley County, West Virginia139,522Morgan County, West Virginia18,027Lexington Park, MD μSA211,176St. Mary's County, Maryland116,692Calvert County, Maryland94,484Chambersburg, PA MSA160,652Franklin County, Pennsylvania160,652Winchester, VA-WV MSA152,332Frederick County, Virginia99,955City of Winchester, Virginia28,272Hampshire County, West Virginia24,105Lake of the Woods, VA μSA40,083Orange County, Virginia40,083Easton, MD μSA38,238Talbot County, Maryland38,238Cambridge, MD μSA33,628Dorchester County, Maryland33,628Williamsport-Lock Haven, PA CSA150,457Williamsport, PA MSA112,587Lycoming County, Pennsylvania112,724Lock Haven, PA μSA37,870Clinton County, Pennsylvania37,870nonePottsville, PA μSA145,085Schuylkill County, Pennsylvania145,085New York-Newark, NY-NJ-CT-PA CSA22,535,01762,808 (PA)New York-Newark-Jersey City, NY-NJ MSA20,112,448Kings County, New York2,653,963New York-Jersey City-White Plains, NY-NJ MD12,300,480Queens County, New York2,358,182New York County, New York1,664,862Bronx County, New York1,406,332Westchester County, New York1,015,743Bergen County, New Jersey977,026Hudson County, New Jersey735,033Passaic County, New Jersey531,624Richmond County, New York501,290Rockland County, New York357,397Putnam County, New York99,028Suffolk County, New York1,546,090Nassau County-Suffolk County, NY MD2,945,029Nassau County, New York1,398,939Middlesex County, New Jersey883,335Lakewood-New Brunswick, NJ MD2,564,602Ocean County, New Jersey673,746Monmouth County, New Jersey651,035Somerset County, New Jersey356,486Essex County, New Jersey896,379Newark, NJ MD2,302,337Union County, New Jersey601,863Morris County, New Jersey524,251Sussex County, New Jersey148,063Hunterdon County, New Jersey131,781Bridgeport-Stamford-Danbury, CT MSA951,558Western Connecticut Planning Region, Connecticut640,482noneGreater Bridgeport Planning Region, Connecticut337,697Kiryas Joel-Poughkeepsie-Newburgh, NY MSA718,377Orange County, New York417,669Dutchess County, New York300,708Trenton-Princeton, NJ MSA399,289Mercer County, New Jersey399,289Kingston, NY MSA183,330Ulster County, New York183,330Monticello, NY μSA80,586Sullivan County, New York80,586Hemlock Farms, PA μSA62,808Pike County, Pennsylvania62,808noneSayre, PA μSA59,600Bradford County, Pennsylvania59,600Oil City, PA μSA49,346Venango County, Pennsylvania49,346Lewistown, PA μSA46,127Mifflin County, Pennsylvania46,127Bradford, PA μSA38,984McKean County, Pennsylvania38,984Warren, PA μSA37,038Warren County, Pennsylvania37,038St. Marys, PA μSA29,926Elk County, Pennsylvania29,926noneWayne County, Pennsylvania51,703Bedford County, Pennsylvania47,480Jefferson County, Pennsylvania43,255Tioga County, Pennsylvania40,502Susquehanna County, Pennsylvania38,237Clarion County, Pennsylvania36,680Greene County, Pennsylvania33,885Juniata County, Pennsylvania23,403Potter County, Pennsylvania15,897Fulton County, Pennsylvania14,483Forest County, Pennsylvania6,614Sullivan County, Pennsylvania5,856Cameron County, Pennsylvania4,211Commonwealth of Pennsylvania13,059,432
+The 36 core-based statistical areas of the Commonwealth of Pennsylvania2025 rankCore-based statistical areaPopulation2025 estimateChange2020 CensusChange2010 CensusPhiladelphia-Camden-Wilmington, PA-NJ-DE-MD MSA (PA)Pittsburgh, PA MSAAllentown-Bethlehem-Easton, PA-NJ MSA (PA)Harrisburg-Carlisle, PA MSAScranton--Wilkes-Barre, PA MSALancaster, PA MSAYork-Hanover, PA MSAReading, PA MSAErie, PA MSAEast Stroudsburg, PA μSAChambersburg, PA MSAState College, PA MSALebanon, PA MSAPottsville, PA μSAJohnstown, PA MSAAltoona, PA MSAWilliamsport, PA MSAHermitage, PA μSASunbury, PA μSAGettysburg, PA MSAIndiana, PA μSAMeadville, PA μSADuBois, PA μSASomerset, PA μSABloomsburg-Berwick, PA μSAHemlock Farms, PA μSASayre, PA μSAOil City, PA μSALewistown, PA μSAHuntingdon, PA μSALewisburg, PA μSASelinsgrove, PA μSABradford, PA μSALock Haven, PA μSAWarren, PA μSASt. Marys, PA μSAAllentown-Bethlehem-Easton, PA-NJ MSAPhiladelphia-Camden-Wilmington, PA-NJ-DE-MD MSA
+The 12 combined statistical area of the Commonwealth of Pennsylvania2025 rankCombined statistical areaPopulation2025 estimateChange2020 CensusChange2010 CensusPhiladelphia-Reading-Camden, PA-NJ-DE-MD CSA (PA)Pittsburgh-Weirton-Steubenville, PA-OH-WV CSA (PA)Harrisburg-York-Lebanon, PA CSAAllentown-Bethlehem-East Stroudsburg, PA-NJ CSA (PA)Erie-Meadville, PA CSABloomsburg-Berwick-Sunbury, PA CSAState College-DuBois, PA CSAJohnstown-Somerset, PA CSAAltoona-Huntingdon, PA CSAWashington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA (PA)Williamsport-Lock Haven, PA CSANew York-Newark, NY-NJ-CT-PA CSA (PA)Allentown-Bethlehem-East Stroudsburg PA-NJ CSAPhiladelphia-Reading-Camden, PA-NJ-DE-MD CSAPittsburgh-Weirton-Steubenville, PA-OH-WV CSAWashington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA
See also
Geography of Pennsylvania Demographics of Pennsylvania
Notes
References
External links
Office of Management and Budget United States Census Bureau