Pennsylvania

Pennsylvania has 67 Counties.

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County Commissioners Association of Pennsylvania
PO BOX 60769
Harrisburg, PA 17106-0769
Phone: (717)526-1010
Fax: (717)526-1020
http://www.pacounties.org

County NACo
Member
2010
Population
Square
Miles
County Seat Board
Size
Founded
Adams 101,407 519 Gettysburg   1800 
Allegheny 1,223,348 730 Pittsburgh   15  1788 
Armstrong 68,941 653 Kittanning   1800 
Beaver   170,539 435 Beaver   1800 
Bedford 49,762 1,012 Bedford   1771 
Berks 411,442 857 Reading   1751 
Blair   127,089 526 Hollidaysburg   1846 
Bradford 62,622 1,147 Towanda   1810 
Bucks   625,249 604 Doylestown   1682 
Butler 183,862 789 Butler   1800 
Cambria 143,679 688 Ebensburg   1804 
Cameron   5,085 396 Emporium   1860 
Carbon 65,249 381 Jim Thorpe   1843 
Centre 153,990 1,110 Bellefonte   1800 
Chester 498,886 751 West Chester   1682 
Clarion 39,988 601 Clarion   1839 
Clearfield 81,642 1,145 Clearfield   1804 
Clinton 39,238 888 Lock Haven   1839 
Columbia 67,295 483 Bloomsburg   1813 
Crawford 88,765 1,012 Meadville   1800 
Cumberland   235,406 545 Carlisle   1750 
Dauphin 268,100 525 Harrisburg   1785 
Delaware 558,979 184 Media   1789 
Elk 31,946 827 Ridgway   1843 
Erie 280,566 799 Erie   1800 
Fayette   136,606 790 Uniontown   1783 
Forest 7,716 427 Tionesta   1848 
Franklin 149,618 772 Chambersburg   1784 
Fulton 14,845 438 McConnellsburg   1850 
Greene 38,686 576 Waynesburg   1796 
Huntingdon   45,913 875 Huntingdon   1787 
Indiana 88,880 827 Indiana   1803 
Jefferson 45,200 652 Brookville   1804 
Juniata 24,636 391 Mifflintown   1831 
Lackawanna 214,437 459 Scranton   1878 
Lancaster 519,445 944 Lancaster   1729 
Lawrence 91,108 358 New Castle   1849 
Lebanon   133,568 362 Lebanon   1815 
Lehigh 349,497 345 Allentown   1812 
Luzerne 320,918 890 Wilkes-Barre   11  1786 
Lycoming 116,111 1,229 Williamsport   1795 
McKean 43,450 979 Smethport   1804 
Mercer 116,638 673 Mercer   1800 
Mifflin 46,682 411 Lewistown   1789 
Monroe 169,842 608 Stroudsburg   1836 
Montgomery   799,874 483 Norristown   1784 
Montour 18,267 130 Danville   1850 
Northampton 297,735 370 Easton   1752 
Northumberland   94,528 458 Sunbury   1772 
Perry   45,969 551 New Bloomfield   1820 
Philadelphia*   1,526,006 134 Philadelphia  20  1682 
Pike 57,369 545 Milford   1814 
Potter 17,457 1,081 Coudersport   1804 
Schuylkill   148,289 779 Pottsville   1811 
Snyder 39,702 329 Middleburg   1855 
Somerset 77,742 1,074 Somerset   1795 
Sullivan 6,428 450 Laporte   1847 
Susquehanna   43,356 823 Montrose   1810 
Tioga 41,981 1,134 Wellsboro   1804 
Union 44,947 316 Lewisburg   1813 
Venango   54,984 674 Franklin   1800 
Warren 41,815 884 Warren   1800 
Washington 207,820 857 Washington  1781 
Wayne 52,822 726 Honesdale   1798 
Westmoreland 365,169 1,028 Greensburg   1773 
Wyoming 28,276 397 Tunkhannock   1842 
York   434,972 904 York  1749 

  * Consolidated City-County Government