Pennsylvania County Map
Labeled county boundary map and complete directory of all 67 counties in Pennsylvania (PA, State FIPS 42). View 5-digit FIPS codes, county seats, land area in square miles, and official county government websites below.
Showing all 67 counties in Pennsylvania. Use the search box below to filter by county name, 5-digit FIPS code, or county seat.
Pennsylvania County Statistics & Summary
Total Counties
67
Largest by Land Area
Lycoming County
Smallest by Land Area
Montour County
All 67 Counties in Pennsylvania (FIPS, County Seat & Official Website)
| County Name | 5-Digit FIPS | Seat / Administrative Center | Land Area (sq mi) | Coordinates | Official Website |
|---|---|---|---|---|---|
| Adams County | 42001 | Gettysburg | 518.6 | 39.869°, -77.218° | Official Site |
| Allegheny County | 42003 | Pittsburgh | 730 | 40.470°, -79.981° | Official Site |
| Armstrong County | 42005 | Kittanning | 653.3 | 40.812°, -79.464° | Official Site |
| Beaver County | 42007 | Beaver | 434.7 | 40.684°, -80.351° | Official Site |
| Bedford County | 42009 | Bedford | 1,012 | 39.999°, -78.494° | Official Site |
| Berks County | 42011 | Reading | 856.4 | 40.413°, -75.927° | Official Site |
| Blair County | 42013 | Hollidaysburg | 525.1 | 40.500°, -78.304° | Official Site |
| Bradford County | 42015 | Towanda | 1,147.4 | 41.791°, -76.502° | Official Site |
| Bucks County | 42017 | Doylestown | 604.4 | 40.337°, -75.107° | Official Site |
| Butler County | 42019 | Butler | 789.5 | 40.914°, -79.919° | Official Site |
| Cambria County | 42021 | Ebensburg | 688 | 40.510°, -78.711° | Official Site |
| Cameron County | 42023 | Emporium | 396.1 | 41.438°, -78.198° | Official Site |
| Carbon County | 42025 | Jim Thorpe | 381.4 | 40.919°, -75.705° | Official Site |
| Centre County | 42027 | Bellefonte | 1,107.3 | 40.909°, -77.848° | Official Site |
| Chester County | 42029 | West Chester | 750.6 | 39.974°, -75.750° | Official Site |
| Clarion County | 42031 | Clarion | 600.8 | 41.205°, -79.419° | Official Site |
| Clearfield County | 42033 | Clearfield | 1,144.9 | 41.006°, -78.477° | Official Site |
| Clinton County | 42035 | Lock Haven | 889.8 | 41.239°, -77.629° | Official Site |
| Columbia County | 42037 | Bloomsburg | 483.3 | 41.044°, -76.397° | Official Site |
| Crawford County | 42039 | Meadville | 1,012.4 | 41.688°, -80.108° | Official Site |
| Cumberland County | 42041 | Carlisle | 545.5 | 40.165°, -77.263° | Official Site |
| Dauphin County | 42043 | Harrisburg | 524.9 | 40.411°, -76.799° | Official Site |
| Delaware County | 42045 | Media | 183.8 | 39.917°, -75.399° | Official Site |
| Elk County | 42047 | Ridgway | 827 | 41.427°, -78.654° | Official Site |
| Erie County | 42049 | Erie | 799 | 42.118°, -80.096° | Official Site |
| Fayette County | 42051 | Uniontown | 790.8 | 39.919°, -79.640° | Official Site |
| Forest County | 42053 | Tionesta | 427.3 | 41.513°, -79.250° | Official Site |
| Franklin County | 42055 | Chambersburg | 772.3 | 39.927°, -77.719° | Official Site |
| Fulton County | 42057 | McConnellsburg | 437.6 | 39.911°, -78.123° | Official Site |
| Greene County | 42059 | Waynesburg | 575.9 | 39.848°, -80.226° | Official Site |
| Huntingdon County | 42061 | Huntingdon | 874.6 | 40.422°, -77.969° | Official Site |
| Indiana County | 42063 | Indiana | 827.4 | 40.651°, -79.088° | Official Site |
| Jefferson County | 42065 | Brookville | 652.5 | 41.138°, -79.012° | Official Site |
| Juniata County | 42067 | Mifflintown | 391.4 | 40.531°, -77.400° | Official Site |
| Lackawanna County | 42069 | Scranton | 458.8 | 41.437°, -75.609° | Official Site |
| Lancaster County | 42071 | Lancaster | 943.9 | 40.042°, -76.250° | Official Site |
| Lawrence County | 42073 | New Castle | 357.4 | 40.993°, -80.334° | Official Site |
| Lebanon County | 42075 | Lebanon | 361.8 | 40.371°, -76.465° | Official Site |
| Lehigh County | 42077 | Allentown | 345.3 | 40.614°, -75.591° | Official Site |
| Luzerne County | 42079 | Wilkes-Barre | 889.9 | 41.173°, -75.976° | Official Site |
| Lycoming County | 42081 | Williamsport | 1,228.9 | 41.344°, -77.055° | Official Site |
| McKean County | 42083 | Smethport | 979.7 | 41.815°, -78.572° | Official Site |
| Mercer County | 42085 | Mercer | 672.5 | 41.300°, -80.253° | Official Site |
| Mifflin County | 42087 | Lewistown | 411 | 40.602°, -77.652° | Official Site |
| Monroe County | 42089 | Stroudsburg | 608.4 | 41.056°, -75.329° | Official Site |
| Montgomery County | 42091 | Norristown | 482.9 | 40.210°, -75.370° | Official Site |
| Montour County | 42093 | Danville | 130.3 | 41.029°, -76.665° | Official Site |
| Northampton County | 42095 | Easton | 369.8 | 40.753°, -75.307° | Official Site |
| Northumberland County | 42097 | Sunbury | 457.7 | 40.853°, -76.706° | Official Site |
| Perry County | 42099 | Bloomfield | 551.4 | 40.398°, -77.266° | Official Site |
| Philadelphia County | 42101 | Philadelphia | 134.3 | 40.009°, -75.133° | — |
| Pike County | 42103 | Milford | 544.9 | 41.326°, -75.031° | Official Site |
| Potter County | 42105 | Coudersport | 1,081.2 | 41.749°, -77.894° | Official Site |
| Schuylkill County | 42107 | Pottsville | 778.8 | 40.704°, -76.218° | Official Site |
| Snyder County | 42109 | Middleburg | 328.8 | 40.755°, -77.073° | Official Site |
| Somerset County | 42111 | Somerset | 1,075 | 39.981°, -79.028° | Official Site |
| Sullivan County | 42113 | Laporte | 449.9 | 41.439°, -76.512° | Official Site |
| Susquehanna County | 42115 | Montrose | 823.5 | 41.820°, -75.801° | Official Site |
| Tioga County | 42117 | Wellsboro | 1,133.9 | 41.767°, -77.257° | Official Site |
| Union County | 42119 | Lewisburg | 316 | 40.962°, -77.055° | Official Site |
| Venango County | 42121 | Franklin | 674.3 | 41.401°, -79.766° | Official Site |
| Warren County | 42123 | Warren | 884.3 | 41.834°, -79.298° | Official Site |
| Washington County | 42125 | Washington | 857 | 40.200°, -80.252° | Official Site |
| Wayne County | 42127 | Honesdale | 725.8 | 41.647°, -75.293° | Official Site |
| Westmoreland County | 42129 | Greensburg | 1,027.7 | 40.311°, -79.467° | Official Site |
| Wyoming County | 42131 | Tunkhannock | 397.3 | 41.525°, -76.009° | Official Site |
| York County | 42133 | York | 904.4 | 39.922°, -76.729° | Official Site |
How Pennsylvania Counties and 5-Digit FIPS Codes Work
In U.S. Census Bureau TIGER/Line geography, Pennsylvania (PA) is assigned the 2-digit state Federal Information Processing Series (FIPS) code 42 and covers 44,742 square miles of land area across 67 counties in the Eastern Time (ET) zone (with Harrisburg as the state capital). Every county in the directory above carries a unique 5-digit GEOID formed by combining state prefix 42 with a 3-digit county code (ranging alphabetically from Adams County at 42001 to York County at 42133).
Because U.S. Postal Service 5-digit ZIP Codes follow mail carrier delivery routes rather than local government borders, many postal addresses in Pennsylvania carry a neighboring city’s mailing name or sit inside a multi-county ZIP Code Tabulation Area (ZCTA). Property tax assessments, deed recording, circuit and county court venue, voter registration precincts, sheriff jurisdiction, and county sales tax rates in Pennsylvania are determined by the legal county boundary shown on the map above rather than the postal city name on an envelope.
Land area figures in square miles and internal centroid coordinates (INTPTLAT, INTPTLON) come directly from the U.S. Census Bureau’s current TIGERweb State_County benchmark, while 67 administrative seats and 66 verified official government websites are cross-referenced from Wikidata (CC0). Need a clean outline worksheet without county labels, or want to verify which Pennsylvania county a specific home or business address sits in? Open the Blank Map of Pennsylvania, run a street-segment check on Address to County Lookup, check multi-county postal overlap on ZIP Code to County Lookup, or browse all 50 states on the National U.S. County Map.
Adjacent State County Maps
Explore county maps and FIPS directories for states bordering Pennsylvania: