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Northeast county atlas

Pennsylvania county map

See all 67 counties on one clear, labelled map. Use the alphabetical table below to verify names and compare land area.

Boundary vintage: 2025Source: U.S. Census BureauUpdated September 15, 2026
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Labelled map of Pennsylvania counties AdamsAlleghenyArmstrongBeaverBedfordBerksBlairBradfordBucksButlerCambriaCameronCarbonCentreChesterClarionClearfieldClintonColumbiaCrawfordCumberlandDauphinDelawareElkErieFayetteForestFranklinFultonGreeneHuntingdonIndianaJeffersonJuniataLackawannaLancasterLawrenceLebanonLehighLuzerneLycomingMcKeanMercerMifflinMonroeMontgomeryMontourNorthamptonNorthumberlandPerryPhiladelphiaPikePotterSchuylkillSnyderSomersetSullivanSusquehannaTiogaUnionVenangoWarrenWashingtonWayneWestmorelandWyomingYork
Boundary data: U.S. Census Bureau 2025 cartographic boundary files. Zoom in for county names, then drag the map or use the arrow keys to move around.
Map scope: This is a county boundary reference map. It does not show roads, parcels, ZIP codes, election precincts, or terrain.

Alphabetical list of Pennsylvania counties

The land-area figures are rounded to the nearest square mile. Water area is shown separately so large lakes or coastal waters do not obscure the comparison.

NameFIPS codeLand areaWater area
Adams County42001519 sq mi3 sq mi
Allegheny County42003730 sq mi14 sq mi
Armstrong County42005653 sq mi11 sq mi
Beaver County42007435 sq mi9 sq mi
Bedford County420091,012 sq mi5 sq mi
Berks County42011856 sq mi9 sq mi
Blair County42013525 sq mi1 sq mi
Bradford County420151,147 sq mi14 sq mi
Bucks County42017604 sq mi17 sq mi
Butler County42019789 sq mi6 sq mi
Cambria County42021688 sq mi5 sq mi
Cameron County42023396 sq mi2 sq mi
Carbon County42025381 sq mi6 sq mi
Centre County420271,107 sq mi4 sq mi
Chester County42029751 sq mi9 sq mi
Clarion County42031601 sq mi9 sq mi
Clearfield County420331,145 sq mi9 sq mi
Clinton County42035890 sq mi9 sq mi
Columbia County42037483 sq mi7 sq mi
Crawford County420391,012 sq mi25 sq mi
Cumberland County42041545 sq mi5 sq mi
Dauphin County42043525 sq mi33 sq mi
Delaware County42045184 sq mi7 sq mi
Elk County42047827 sq mi5 sq mi
Erie County42049799 sq mi759 sq mi
Fayette County42051791 sq mi8 sq mi
Forest County42053427 sq mi3 sq mi
Franklin County42055772 sq mi1 sq mi
Fulton County42057438 sq mi1 sq mi
Greene County42059576 sq mi2 sq mi
Huntingdon County42061875 sq mi15 sq mi
Indiana County42063827 sq mi7 sq mi
Jefferson County42065652 sq mi4 sq mi
Juniata County42067391 sq mi2 sq mi
Lackawanna County42069459 sq mi6 sq mi
Lancaster County42071944 sq mi40 sq mi
Lawrence County42073357 sq mi4 sq mi
Lebanon County42075362 sq mi1 sq mi
Lehigh County42077345 sq mi3 sq mi
Luzerne County42079890 sq mi16 sq mi
Lycoming County420811,229 sq mi15 sq mi
McKean County42083980 sq mi5 sq mi
Mercer County42085673 sq mi10 sq mi
Mifflin County42087411 sq mi4 sq mi
Monroe County42089608 sq mi9 sq mi
Montgomery County42091483 sq mi4 sq mi
Montour County42093130 sq mi2 sq mi
Northampton County42095370 sq mi7 sq mi
Northumberland County42097458 sq mi20 sq mi
Perry County42099551 sq mi4 sq mi
Philadelphia County42101134 sq mi8 sq mi
Pike County42103545 sq mi22 sq mi
Potter County421051,081 sq mi0 sq mi
Schuylkill County42107779 sq mi4 sq mi
Snyder County42109329 sq mi3 sq mi
Somerset County421111,075 sq mi7 sq mi
Sullivan County42113450 sq mi3 sq mi
Susquehanna County42115823 sq mi9 sq mi
Tioga County421171,134 sq mi3 sq mi
Union County42119316 sq mi2 sq mi
Venango County42121674 sq mi9 sq mi
Warren County42123884 sq mi14 sq mi
Washington County42125857 sq mi4 sq mi
Wayne County42127726 sq mi25 sq mi
Westmoreland County421291,028 sq mi8 sq mi
Wyoming County42131397 sq mi8 sq mi
York County42133904 sq mi6 sq mi

Largest Pennsylvania counties by land area

These are the five largest mapped units in Pennsylvania by Census-reported land area:

  1. Lycoming County — 1,229 square miles
  2. Bradford County — 1,147 square miles
  3. Clearfield County — 1,145 square miles
  4. Tioga County — 1,134 square miles
  5. Centre County — 1,107 square miles

How to read and use this map

County lines are administrative boundaries, not postal routes. A mailing address can use a city name associated with a neighboring area, and ZIP codes can cross county lines. When you need to identify a county for an address, confirm it with an official geocoder or local government source.

For classroom or planning use, print directly from this page. If labels become crowded, choose landscape orientation and reduce page margins. The underlying vector lines remain crisp at different sizes.

Frequently asked questions

How many counties are in Pennsylvania?

Pennsylvania has 67 counties in the U.S. Census Bureau’s 2025 cartographic boundary file.

Can I print this Pennsylvania county map?

Yes. Choose Print map and use landscape orientation for the widest map. Because the map is SVG, its boundary lines stay sharp when scaled.

Are these legal survey boundaries?

No. This is a generalized reference map. Property, parcel, election, and legal boundary questions should be checked with the relevant state or local agency.

Map source

U.S. Census Bureau, 2025 Cartographic Boundary File, Counties, 1:20,000,000. Land and water area fields are supplied in the same file and converted from square meters to square miles. Accessed September 15, 2026.