Want to know about the largest to smallest counties in Pennsylvania, USA in terms of total land area? Check this resource Pennsylvania counties by land area to discover all the details regarding county map (boundary), and nearby counties.
On the other hand, check Pennsylvania counties by population and Pennsylvania cities by population to know more about city and county based demographic details.
What is the largest county in Pennsylvania by land area?
Lycoming County is the largest county in Pennsylvania spanning 1228.92 square miles, with an additional 15.03 square miles of water area. Following Lycoming County, Bradford County ranks as the second largest in terms of land area, covering 1147.38 square miles, while Clearfield County secures the position as the third largest county in Pennsylvania.
What is the smallest county by land area in Pennsylvania?
Montour County is the smallest in Pennsylvania by total land area, covers about 130.33 square miles.
What is the largest county by population in Pennsylvania?
Allegheny County in Pennsylvania, USA, stands as the most populous county having 1,250,578 residents as per the 2022 census data.
What is the smallest county by population in Pennsylvania?
Cameron County is the smallest in Pennsylvania by total population, having 4,547 residents as per the 2022 census data.
Pennsylvania Counties by Size
Rank
| County
in Pennsylvania | Land Area
square miles | Water Area
square miles | Total Area
square miles |
|---|
| 1 | Lycoming County | 1,229 | 15 | 1,244 |
| 2 | Bradford County | 1,147 | 14 | 1,161 |
| 3 | Clearfield County | 1,145 | 9 | 1,154 |
| 4 | Tioga County | 1,134 | 3 | 1,137 |
| 5 | Centre County | 1,107 | 4 | 1,112 |
| 6 | Potter County | 1,081 | 0 | 1,081 |
| 7 | Somerset County | 1,075 | 7 | 1,082 |
| 8 | Westmoreland County | 1,028 | 8 | 1,036 |
| 9 | Crawford County | 1,012 | 25 | 1,038 |
| 10 | Bedford County | 1,012 | 5 | 1,017 |
| 11 | Mc Kean County | 980 | 5 | 985 |
| 12 | Lancaster County | 944 | 40 | 984 |
| 13 | York County | 904 | 6 | 911 |
| 14 | Luzerne County | 890 | 16 | 906 |
| 15 | Clinton County | 890 | 9 | 899 |
| 16 | Warren County | 884 | 14 | 899 |
| 17 | Huntingdon County | 875 | 15 | 889 |
| 18 | Washington County | 857 | 4 | 861 |
| 19 | Berks County | 856 | 9 | 866 |
| 20 | Indiana County | 827 | 7 | 834 |
| 21 | Elk County | 827 | 5 | 832 |
| 22 | Susquehanna County | 823 | 9 | 832 |
| 23 | Erie County | 799 | 759 | 1,558 |
| 24 | Fayette County | 791 | 8 | 799 |
| 25 | Butler County | 789 | 6 | 796 |
| 26 | Schuylkill County | 779 | 4 | 783 |
| 27 | Franklin County | 772 | 1 | 773 |
| 28 | Chester County | 751 | 9 | 759 |
| 29 | Allegheny County | 730 | 14 | 744 |
| 30 | Wayne County | 726 | 25 | 751 |
| 31 | Cambria County | 688 | 5 | 693 |
| 32 | Venango County | 674 | 9 | 683 |
| 33 | Mercer County | 673 | 10 | 683 |
| 34 | Armstrong County | 653 | 11 | 664 |
| 35 | Jefferson County | 652 | 4 | 657 |
| 36 | Monroe County | 608 | 9 | 617 |
| 37 | Bucks County | 604 | 17 | 622 |
| 38 | Clarion County | 601 | 9 | 610 |
| 39 | Greene County | 576 | 2 | 578 |
| 40 | Perry County | 551 | 4 | 556 |
| 41 | Cumberland County | 545 | 5 | 550 |
| 42 | Pike County | 545 | 22 | 567 |
| 43 | Blair County | 525 | 1 | 526 |
| 44 | Dauphin County | 525 | 33 | 558 |
| 45 | Adams County | 519 | 3 | 522 |
| 46 | Columbia County | 483 | 7 | 490 |
| 47 | Montgomery County | 483 | 4 | 487 |
| 48 | Lackawanna County | 459 | 6 | 465 |
| 49 | Northumberland County | 458 | 20 | 477 |
| 50 | Sullivan County | 450 | 3 | 452 |
| 51 | Fulton County | 438 | 1 | 438 |
| 52 | Beaver County | 435 | 9 | 444 |
| 53 | Forest County | 427 | 3 | 430 |
| 54 | Mifflin County | 411 | 4 | 415 |
| 55 | Wyoming County | 397 | 8 | 405 |
| 56 | Cameron County | 396 | 2 | 398 |
| 57 | Juniata County | 391 | 2 | 394 |
| 58 | Carbon County | 381 | 6 | 388 |
| 59 | Northampton County | 370 | 7 | 377 |
| 60 | Lebanon County | 362 | 1 | 363 |
| 61 | Lawrence County | 357 | 4 | 362 |
| 62 | Lehigh County | 345 | 3 | 348 |
| 63 | Snyder County | 329 | 3 | 332 |
| 64 | Union County | 316 | 2 | 318 |
| 65 | Delaware County | 184 | 7 | 191 |
| 66 | Montour County | 130 | 2 | 132 |
