| Population, April 1, 1990 | Population, April 1, 2000 | Numeric Population Change, 1990 to 2000 | Percent Population Change, 1990 to 2000 | Land Area (square miles), 2000 | Persons Per Square Mile, 1990 | Persons Per Square Mile, 2000 |
|
United States | 248,709,873 | 281,421,906 | 32,712,033 | 13.2% | 3,537,438.4 | 70.3 | 79.6 |
Appalachian Region | 21,727,579 | 23,642,578 | 1,914,999 | 8.8% | 204,812.1 | 106.1 | 115.4 |
Pennsylvania | 11,881,643 | 12,281,054 | 399,411 | 3.4% | 44,816.6 | 265.1 | 274.0 |
Appalachian Pennsylvania | 5,769,410 | 5,819,800 | 50,390 | 0.9% | 36,488.8 | 158.1 | 159.5 |
|
County |
Allegheny | 1,336,449 | 1,281,666 | -54,783 | -4.1% | 730.2 | 1,830.3 | 1,755.3 |
Armstrong | 73,478 | 72,392 | -1,086 | -1.5% | 653.9 | 112.4 | 110.7 |
Beaver | 186,093 | 181,412 | -4,681 | -2.5% | 434.2 | 427.5 | 417.8 |
Bedford | 47,919 | 49,984 | 2,065 | 4.3% | 1,014.5 | 47.2 | 49.3 |
Blair | 130,542 | 129,144 | -1,398 | -1.1% | 525.8 | 248.3 | 245.6 |
Bradford | 60,967 | 62,761 | 1,794 | 2.9% | 1,150.7 | 53.0 | 54.5 |
Butler | 152,013 | 174,083 | 22,070 | 14.5% | 788.5 | 192.8 | 220.8 |
Cambria | 163,029 | 152,598 | -10,431 | -6.4% | 688.0 | 236.9 | 221.8 |
Cameron | 5,913 | 5,974 | 61 | 1.0% | 397.2 | 14.9 | 15.0 |
Carbon | 56,846 | 58,802 | 1,956 | 3.4% | 381.0 | 148.6 | 154.3 |
Centre | 123,786 | 135,758 | 11,972 | 9.7% | 1,107.5 | 111.8 | 122.6 |
Clarion | 41,699 | 41,765 | 66 | 0.2% | 602.4 | 69.2 | 69.3 |
Clearfield | 78,097 | 83,382 | 5,285 | 6.8% | 1,147.3 | 68.1 | 72.7 |
Clinton | 37,182 | 37,914 | 732 | 2.0% | 890.9 | 41.7 | 42.6 |
Columbia | 63,202 | 64,151 | 949 | 1.5% | 485.5 | 130.2 | 132.1 |
Crawford | 86,169 | 90,366 | 4,197 | 4.9% | 1,012.7 | 85.1 | 89.2 |
Elk | 34,878 | 35,112 | 234 | 0.7% | 828.7 | 42.1 | 42.4 |
Erie | 275,572 | 280,843 | 5,271 | 1.9% | 801.9 | 343.6 | 350.2 |
Fayette | 145,351 | 148,644 | 3,293 | 2.3% | 790.1 | 184.0 | 188.1 |
Forest | 4,802 | 4,946 | 144 | 3.0% | 428.1 | 11.2 | 11.6 |
Fulton | 13,837 | 14,261 | 424 | 3.1% | 437.6 | 31.6 | 32.6 |
Greene | 39,550 | 40,672 | 1,122 | 2.8% | 575.9 | 68.7 | 70.6 |
Huntingdon | 44,164 | 45,586 | 1,422 | 3.2% | 874.1 | 50.5 | 52.2 |
Indiana | 89,994 | 89,605 | -389 | -0.4% | 829.3 | 108.5 | 108.1 |
Jefferson | 46,083 | 45,932 | -151 | -0.3% | 655.5 | 70.3 | 70.1 |
Juniata | 20,625 | 22,821 | 2,196 | 10.6% | 391.6 | 52.7 | 58.3 |
Lackawanna | 219,039 | 213,295 | -5,744 | -2.6% | 458.6 | 477.4 | 465.1 |
Lawrence | 96,246 | 94,643 | -1,603 | -1.7% | 360.5 | 267.0 | 262.6 |
Luzerne | 328,149 | 319,250 | -8,899 | -2.7% | 890.8 | 368.3 | 358.4 |
Lycoming | 118,710 | 120,044 | 1,334 | 1.1% | 1,234.9 | 96.1 | 97.2 |
McKean | 47,131 | 45,936 | -1,195 | -2.5% | 981.6 | 48.0 | 46.8 |
Mercer | 121,003 | 120,293 | -710 | -0.6% | 671.8 | 180.1 | 179.1 |
Mifflin | 46,197 | 46,486 | 289 | 0.6% | 411.9 | 112.5 | 112.9 |
Monroe | 95,709 | 138,687 | 42,978 | 44.9% | 608.5 | 157.6 | 227.9 |
Montour | 17,735 | 18,236 | 501 | 2.8% | 130.8 | 135.6 | 139.5 |
Northumberland | 96,771 | 94,556 | -2,215 | -2.3% | 459.9 | 210.4 | 205.6 |
Perry | 41,172 | 43,602 | 2,430 | 5.9% | 553.5 | 74.4 | 78.8 |
Pike | 27,966 | 46,302 | 18,336 | 65.6% | 546.8 | 51.1 | 84.7 |
Potter | 16,717 | 18,080 | 1,363 | 8.2% | 1,081.2 | 15.5 | 16.7 |
Schuylkill | 152,585 | 150,336 | -2,249 | -1.5% | 778.4 | 196.0 | 193.1 |
Snyder | 36,680 | 37,546 | 866 | 2.4% | 331.2 | 110.7 | 113.4 |
Somerset | 78,218 | 80,023 | 1,805 | 2.3% | 1,074.7 | 72.8 | 74.5 |
Sullivan | 6,104 | 6,556 | 452 | 7.4% | 449.9 | 13.6 | 14.6 |
Susquehanna | 40,380 | 42,238 | 1,858 | 4.6% | 822.9 | 49.1 | 51.3 |
Tioga | 41,126 | 41,373 | 247 | 0.6% | 1,133.7 | 36.3 | 36.5 |
Union | 36,176 | 41,624 | 5,448 | 15.1% | 316.7 | 114.2 | 131.4 |
Venango | 59,381 | 57,565 | -1,816 | -3.1% | 675.0 | 88.0 | 85.3 |
Warren | 45,050 | 43,863 | -1,187 | -2.6% | 883.4 | 51.0 | 49.6 |
Washington | 204,584 | 202,897 | -1,687 | -0.8% | 857.1 | 238.7 | 236.7 |
Wayne | 39,944 | 47,722 | 7,778 | 19.5% | 729.2 | 54.8 | 65.4 |
Westmoreland | 370,321 | 369,993 | -328 | -0.1% | 1,025.5 | 362.1 | 360.8 |
Wyoming | 28,076 | 28,080 | 4 | 0.0% | 397.2 | 70.7 | 70.7 |