| Population Estimates Base, April 1, 2000 | Population Estimate, July 1, 2009 | Numeric Population Change, April 1, 2000 to July 1, 2009 | Percent Population Change, April 1, 2000 to July 1, 2009 |
|
United States | 281,424,602 | 307,006,550 | 25,581,948 | 9.1% |
Appalachian Region | 23,642,949 | 24,993,391 | 1,350,442 | 5.7% |
Pennsylvania | 12,281,071 | 12,604,767 | 323,696 | 2.6% |
Appalachian Pennsylvania | 5,819,814 | 5,736,617 | -83,197 | -1.4% |
|
County |
Allegheny | 1,281,665 | 1,218,494 | -63,171 | -4.9% |
Armstrong | 72,392 | 67,851 | -4,541 | -6.3% |
Beaver | 181,412 | 171,673 | -9,739 | -5.4% |
Bedford | 49,976 | 49,579 | -397 | -0.8% |
Blair | 129,144 | 126,122 | -3,022 | -2.3% |
Bradford | 62,761 | 61,131 | -1,630 | -2.6% |
Butler | 174,083 | 184,694 | 10,611 | 6.1% |
Cambria | 152,630 | 143,998 | -8,632 | -5.7% |
Cameron | 5,974 | 5,163 | -811 | -13.6% |
Carbon | 58,795 | 63,865 | 5,070 | 8.6% |
Centre | 135,762 | 146,212 | 10,450 | 7.7% |
Clarion | 41,765 | 39,479 | -2,286 | -5.5% |
Clearfield | 83,380 | 82,324 | -1,056 | -1.3% |
Clinton | 37,910 | 36,797 | -1,113 | -2.9% |
Columbia | 64,148 | 65,111 | 963 | 1.5% |
Crawford | 90,377 | 88,521 | -1,856 | -2.1% |
Elk | 35,111 | 32,011 | -3,100 | -8.8% |
Erie | 280,845 | 280,291 | -554 | -0.2% |
Fayette | 148,644 | 142,605 | -6,039 | -4.1% |
Forest | 4,946 | 6,775 | 1,829 | 37.0% |
Fulton | 14,261 | 14,852 | 591 | 4.1% |
Greene | 40,672 | 39,245 | -1,427 | -3.5% |
Huntingdon | 45,584 | 45,395 | -189 | -0.4% |
Indiana | 89,605 | 87,450 | -2,155 | -2.4% |
Jefferson | 45,932 | 44,634 | -1,298 | -2.8% |
Juniata | 22,821 | 23,118 | 297 | 1.3% |
Lackawanna | 213,296 | 208,801 | -4,495 | -2.1% |
Lawrence | 94,639 | 90,160 | -4,479 | -4.7% |
Luzerne | 319,260 | 312,845 | -6,415 | -2.0% |
Lycoming | 120,048 | 116,840 | -3,208 | -2.7% |
McKean | 45,936 | 43,196 | -2,740 | -6.0% |
Mercer | 120,307 | 116,071 | -4,236 | -3.5% |
Mifflin | 46,486 | 45,937 | -549 | -1.2% |
Monroe | 138,690 | 166,355 | 27,665 | 19.9% |
Montour | 18,239 | 17,715 | -524 | -2.9% |
Northumberland | 94,556 | 91,311 | -3,245 | -3.4% |
Perry | 43,609 | 45,502 | 1,893 | 4.3% |
Pike | 46,303 | 60,529 | 14,226 | 30.7% |
Potter | 18,080 | 16,714 | -1,366 | -7.6% |
Schuylkill | 150,337 | 146,952 | -3,385 | -2.3% |
Snyder | 37,546 | 38,519 | 973 | 2.6% |
Somerset | 79,991 | 76,953 | -3,038 | -3.8% |
Sullivan | 6,556 | 6,140 | -416 | -6.3% |
Susquehanna | 42,238 | 40,646 | -1,592 | -3.8% |
Tioga | 41,372 | 40,875 | -497 | -1.2% |
Union | 41,624 | 43,560 | 1,936 | 4.7% |
Venango | 57,555 | 54,183 | -3,372 | -5.9% |
Warren | 43,863 | 40,638 | -3,225 | -7.4% |
Washington | 202,897 | 207,389 | 4,492 | 2.2% |
Wayne | 47,718 | 51,337 | 3,619 | 7.6% |
Westmoreland | 369,993 | 362,251 | -7,742 | -2.1% |
Wyoming | 28,080 | 27,808 | -272 | -1.0% |