Counties in Pennsylvania
Pennsylvania has 67 counties. Find yours from your location, or explore the map and the full list with seats, population, time zones and FIPS codes.
Updated · Data: U.S. Census Bureau
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Pennsylvania has 67 counties, home to about 12,986,518 people. Sort the table by any column, or search by name or seat.
Counties67Eastern time
Most peoplePhiladelphia County1,582,432 residents, 12% of the state
Fewest peopleCameron County4,475 residents
Most crowdedPhiladelphia County11,783 people per sq mi
Largest by landLycoming County1,228.9 sq mi
Priciest homesChester Countymedian value $461,800
Pennsylvania county map
Population4.5k31k44k65k110k167k353kno data
County explorer: all 67 counties in Pennsylvania
| County | Seat | Population | Land sq mi | People / sq mi | Median home | Time zone | FIPS |
|---|---|---|---|---|---|---|---|
| Philadelphia | Philadelphia | 1,582,432 | 134.3 | 11,783 | $232,400 | Eastern | 42101 |
| Allegheny | Pittsburgh | 1,240,476 | 730.0 | 1,699 | $216,700 | Eastern | 42003 |
| Montgomery | Norristown | 861,225 | 482.9 | 1,783 | $409,900 | Eastern | 42091 |
| Bucks | Doylestown | 645,993 | 604.4 | 1,069 | $421,700 | Eastern | 42017 |
| Delaware | Media | 576,195 | 183.8 | 3,135 | $302,400 | Eastern | 42045 |
| Lancaster | Lancaster | 555,151 | 943.9 | 588 | $279,400 | Eastern | 42071 |
| Chester | West Chester | 540,896 | 750.6 | 721 | $461,800 | Eastern | 42029 |
| York | York | 459,312 | 904.4 | 508 | $235,000 | Eastern | 42133 |
| Berks | Reading | 429,989 | 856.4 | 502 | $239,700 | Eastern | 42011 |
| Lehigh | Allentown | 375,408 | 345.3 | 1,087 | $276,100 | Eastern | 42077 |
| Westmoreland | Greensburg | 353,345 | 1,027.7 | 344 | $193,100 | Eastern | 42129 |
| Luzerne | Wilkes-Barre | 325,978 | 889.8 | 366 | $163,800 | Eastern | 42079 |
| Northampton | Easton | 315,927 | 369.8 | 854 | $285,000 | Eastern | 42095 |
| Dauphin | Harrisburg | 287,484 | 524.9 | 548 | $222,300 | Eastern | 42043 |
| Erie | Erie | 269,544 | 798.9 | 337 | $169,500 | Eastern | 42049 |
| Cumberland | Carlisle | 264,422 | 545.5 | 485 | $261,900 | Eastern | 42041 |
| Lackawanna | Scranton | 215,834 | 458.9 | 470 | $189,900 | Eastern | 42069 |
| Washington | Washington | 209,778 | 857.0 | 245 | $220,600 | Eastern | 42125 |
| Butler | Butler | 195,870 | 789.5 | 248 | $275,600 | Eastern | 42019 |
| Monroe | Stroudsburg | 167,784 | 608.4 | 276 | $241,200 | Eastern | 42089 |
| Beaver | Beaver | 166,993 | 434.7 | 384 | $185,500 | Eastern | 42007 |
| Centre | Bellefonte | 158,041 | 1,107.3 | 143 | $308,100 | Eastern | 42027 |
| Franklin | Chambersburg | 156,626 | 772.3 | 203 | $236,300 | Eastern | 42055 |
| Lebanon | Lebanon | 143,592 | 361.8 | 397 | $227,300 | Eastern | 42075 |
| Schuylkill | Pottsville | 143,259 | 778.6 | 184 | $140,400 | Eastern | 42107 |
| Cambria | Ebensburg | 132,355 | 688.0 | 192 | $115,900 | Eastern | 42021 |
| Fayette | Uniontown | 126,967 | 790.8 | 161 | $126,900 | Eastern | 42051 |
| Blair | Hollidaysburg | 121,854 | 525.1 | 232 | $156,700 | Eastern | 42013 |
| Lycoming | Williamsport | 113,570 | 1,228.9 | 92 | $195,600 | Eastern | 42081 |
| Mercer | Mercer | 109,852 | 672.5 | 163 | $153,600 | Eastern | 42085 |
| Adams | Gettysburg | 105,183 | 518.6 | 203 | $256,100 | Eastern | 42001 |
| Northumberland | Sunbury | 90,925 | 457.7 | 199 | $151,600 | Eastern | 42097 |
| Lawrence | New Castle | 85,423 | 357.4 | 239 | $136,700 | Eastern | 42073 |
| Indiana | Indiana | 83,213 | 827.4 | 101 | $145,400 | Eastern | 42063 |
| Crawford | Meadville | 83,189 | 1,012.4 | 82 | $143,400 | Eastern | 42039 |
| Clearfield | Clearfield | 78,902 | 1,145.1 | 69 | $125,000 | Eastern | 42033 |
| Somerset | Somerset | 73,255 | 1,075.0 | 68 | $130,600 | Eastern | 42111 |
| Carbon | Jim Thorpe | 65,191 | 381.4 | 171 | $193,700 | Eastern | 42025 |
| Armstrong | Kittanning | 65,069 | 653.3 | 100 | $146,300 | Eastern | 42005 |
| Columbia | Bloomsburg | 65,055 | 483.3 | 135 | $199,200 | Eastern | 42037 |
| Bradford | Towanda | 59,971 | 1,147.4 | 52 | $182,300 | Eastern | 42015 |
| Pike | Milford | 59,691 | 544.9 | 110 | $250,900 | Eastern | 42103 |
| Wayne | Honesdale | 51,189 | 725.8 | 71 | $228,200 | Eastern | 42127 |
| Venango | Franklin | 50,096 | 674.3 | 74 | $114,500 | Eastern | 42121 |
| Bedford | Bedford | 47,503 | 1,012.0 | 47 | $172,900 | Eastern | 42009 |
| Mifflin | Lewistown | 46,074 | 411.0 | 112 | $142,900 | Eastern | 42087 |
| Perry | Bloomfield | 45,988 | 551.4 | 83 | $222,800 | Eastern | 42099 |
| Jefferson | Brookville | 44,099 | 652.4 | 68 | $126,700 | Eastern | 42065 |
| Huntingdon | Huntingdon | 43,844 | 874.6 | 50 | $180,300 | Eastern | 42061 |
| Union | Lewisburg | 42,570 | 316.0 | 135 | $222,900 | Eastern | 42119 |
| Tioga | Wellsboro | 41,078 | 1,133.9 | 36 | $176,000 | Eastern | 42117 |
| McKean | Smethport | 40,149 | 979.7 | 41 | $98,700 | Eastern | 42083 |
| Snyder | Middleburg | 39,711 | 328.8 | 121 | $205,500 | Eastern | 42109 |
| Susquehanna | Montrose | 38,349 | 823.5 | 47 | $206,700 | Eastern | 42115 |
| Warren | Warren | 38,174 | 884.3 | 43 | $121,800 | Eastern | 42123 |
| Clinton | Lock Haven | 37,707 | 889.6 | 42 | $179,100 | Eastern | 42035 |
| Clarion | Clarion | 37,297 | 600.8 | 62 | $152,100 | Eastern | 42031 |
| Greene | Waynesburg | 35,265 | 575.9 | 61 | $146,200 | Eastern | 42059 |
| Elk | Ridgway | 30,703 | 826.9 | 37 | $128,600 | Eastern | 42047 |
| Wyoming | Tunkhannock | 26,075 | 397.3 | 66 | $205,600 | Eastern | 42131 |
| Juniata | Mifflintown | 23,419 | 391.4 | 60 | $206,300 | Eastern | 42067 |
| Montour | Danville | 18,079 | 130.3 | 139 | $240,300 | Eastern | 42093 |
| Potter | Coudersport | 16,276 | 1,081.2 | 15 | $146,200 | Eastern | 42105 |
| Fulton | McConnellsburg | 14,545 | 437.6 | 33 | $206,000 | Eastern | 42057 |
| Forest | Tionesta | 6,785 | 427.3 | 16 | $111,900 | Eastern | 42053 |
| Sullivan | Laporte | 5,849 | 449.9 | 13 | $186,400 | Eastern | 42113 |
| Cameron | Emporium | 4,475 | 396.2 | 11 | $88,200 | Eastern | 42023 |
Which Pennsylvania cities are in more than one county?
- Bethlehem: Northampton County 74.3%, Lehigh County 25.7% of residents
- Ardmore: Montgomery County 62.7%, Delaware County 37.3% of residents
- Villanova: Delaware County 78.6%, Montgomery County 21.4% of residents
- Ellwood City: Lawrence County 91.9%, Beaver County 8.1% of residents
- Shippensburg: Cumberland County 74.8%, Franklin County 25.2% of residents
- Bryn Mawr: Montgomery County 71.5%, Delaware County 28.5% of residents
- Telford: Montgomery County 56.4%, Bucks County 43.6% of residents
- Indian Mountain Lake: Monroe County 61.5%, Carbon County 38.5% of residents
- Saw Creek: Pike County 96.1%, Monroe County 3.9% of residents
- Rosemont: Delaware County 59.7%, Montgomery County 40.3% of residents
- Trafford: Westmoreland County 98.3%, Allegheny County 1.7% of residents
- Adamstown: Lancaster County 97.9%, Berks County 2.1% of residents
Sources: Census TIGER/Line 2024; ACS 2019-2023 5-year; Wikidata, CC0 (seats); timezone-boundary-builder (time zones). Data as of November 1, 2026. Not affiliated with any government agency.
FAQ
Frequently asked questions
How many counties are in Pennsylvania?
67.
What is the most populated county in Pennsylvania?
Philadelphia County, with about 1,582,432 people (12% of the state).
What is the least populated county in Pennsylvania?
Cameron County, with about 4,475 people.
What is the largest county in Pennsylvania by land?
Lycoming County, 1,228.9 sq mi of land.
What county am I in, in Pennsylvania?
Use the tool at the top of this page: press Use my current location, or type your city or ZIP code.