PennsylvaniaPennsylvania has 67 Counties. |
Pennsylvania Data Sets Pennsylvania Links |
County Commissioners Association of Pennsylvania P.O. Box 60769 Harrisburg, PA 17106-0769 Phone: (717)232-7554 Fax: (717)232-2162 http://www.pacounties.org
|
| County | NACo Member |
2010 Population |
Square Miles |
County Seat | Board Size |
Founded |
|---|---|---|---|---|---|---|
| Adams |  |
101,407 | 520 | Gettysburg | 3 | 1800 |
| Allegheny | |
1,223,348 | 730 | Pittsburgh | 15 | 1788 |
| Armstrong | |
68,941 | 654 | Kittanning | 3 | 1800 |
| Beaver | |
170,539 | 435 | Beaver | 3 | 1800 |
| Bedford | |
49,762 | 1,015 | Bedford | 3 | 1771 |
| Berks | |
411,442 | 859 | Reading | 3 | 1751 |
| Blair | |
127,089 | 526 | Hollidaysburg | 3 | 1846 |
| Bradford | |
62,622 | 1,151 | Towanda | 3 | 1810 |
| Bucks | |
625,249 | 608 | Doylestown | 3 | 1682 |
| Butler | |
183,862 | 789 | Butler | 3 | 1800 |
| Cambria | |
143,679 | 688 | Ebensburg | 3 | 1804 |
| Cameron | |
5,085 | 397 | Emporium | 3 | 1860 |
| Carbon | |
65,249 | 383 | Jim Thorpe | 3 | 1843 |
| Centre | |
153,990 | 1,108 | Bellefonte | 3 | 1800 |
| Chester | |
498,886 | 756 | West Chester | 3 | 1682 |
| Clarion | |
39,988 | 602 | Clarion | 3 | 1839 |
| Clearfield | |
81,642 | 1,147 | Clearfield | 3 | 1804 |
| Clinton | |
39,238 | 891 | Lock Haven | 3 | 1839 |
| Columbia | |
67,295 | 486 | Bloomsburg | 3 | 1813 |
| Crawford | |
88,765 | 1,013 | Meadville | 3 | 1800 |
| Cumberland | |
235,406 | 550 | Carlisle | 3 | 1750 |
| Dauphin | |
268,100 | 525 | Harrisburg | 3 | 1785 |
| Delaware | |
558,979 | 184 | Media | 5 | 1789 |
| Elk | |
31,946 | 829 | Ridgway | 3 | 1843 |
| Erie | |
280,566 | 802 | Erie | 7 | 1800 |
| Fayette | |
136,606 | 790 | Uniontown | 3 | 1783 |
| Forest | |
7,716 | 428 | Tionesta | 3 | 1848 |
| Franklin | |
149,618 | 772 | Chambersburg | 3 | 1784 |
| Fulton | |
14,845 | 438 | McConnellsburg | 3 | 1850 |
| Greene | |
38,686 | 576 | Waynesburg | 3 | 1796 |
| Huntingdon | |
45,913 | 875 | Huntingdon | 3 | 1787 |
| Indiana | |
88,880 | 830 | Indiana | 3 | 1803 |
| Jefferson | |
45,200 | 656 | Brookville | 3 | 1804 |
| Juniata | |
24,636 | 392 | Mifflintown | 3 | 1831 |
| Lackawanna | |
214,437 | 459 | Scranton | 3 | 1878 |
| Lancaster | |
519,445 | 949 | Lancaster | 3 | 1729 |
| Lawrence | |
91,108 | 360 | New Castle | 3 | 1849 |
| Lebanon | |
133,568 | 362 | Lebanon | 3 | 1815 |
| Lehigh | |
349,497 | 347 | Allentown | 9 | 1812 |
| Luzerne | |
320,918 | 891 | Wilkes-Barre | 10 | 1786 |
| Lycoming | |
116,111 | 1,235 | Williamsport | 3 | 1795 |
| McKean | |
43,450 | 982 | Smethport | 3 | 1804 |
| Mercer | |
116,638 | 672 | Mercer | 3 | 1800 |
| Mifflin | |
46,682 | 411 | Lewistown | 3 | 1789 |
| Monroe | |
169,842 | 607 | Stroudsburg | 3 | 1836 |
| Montgomery | 799,874 | 483 | Norristown | 3 | 1784 | |
| Montour | |
18,267 | 131 | Danville | 3 | 1850 |
| Northampton | |
297,735 | 374 | Easton | 9 | 1752 |
| Northumberland | |
94,528 | 460 | Sunbury | 3 | 1772 |
| Perry | |
45,969 | 554 | New Bloomfield | 3 | 1820 |
| Philadelphia * | |
1,526,006 | 135 | Philadelphia | 20 | 1682 |
| Pike | |
57,369 | 547 | Milford | 3 | 1814 |
| Potter | |
17,457 | 1,081 | Coudersport | 3 | 1804 |
| Schuylkill | |
148,289 | 779 | Pottsville | 3 | 1811 |
| Snyder | |
39,702 | 331 | Middleburg | 3 | 1855 |
| Somerset | |
77,742 | 1,075 | Somerset | 3 | 1795 |
| Sullivan | |
6,428 | 450 | Laporte | 3 | 1847 |
| Susquehanna | |
43,356 | 823 | Montrose | 3 | 1810 |
| Tioga | |
41,981 | 1,134 | Wellsboro | 3 | 1804 |
| Union | |
44,947 | 317 | Lewisburg | 3 | 1813 |
| Venango | |
54,984 | 675 | Franklin | 3 | 1800 |
| Warren | |
41,815 | 884 | Warren | 3 | 1800 |
| Washington | |
207,820 | 857 | Washington | 3 | 1781 |
| Wayne | |
52,822 | 729 | Honesdale | 3 | 1798 |
| Westmoreland | |
365,169 | 1,023 | Greensburg | 3 | 1773 |
| Wyoming | |
28,276 | 397 | Tunkhannock | 3 | 1842 |
| York | |
434,972 | 905 | York | 3 | 1749 |
