Pennsylvania

Pennsylvania has 67 Counties.

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  • 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 101,407 519 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