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Pennsylvania Census Data

  1. Pennsylvania Cities & Towns: Absolute & Relative Change (%) from 2000 to 2009
  2. Pennsylvania Cities & Towns: Population Estimates From 2000 to 2009
  3. Pennsylvania Quick Facts: People, Business & Geography (U.S. Census Bureau)
  4. 2010 Census: Pennsylvania Profile (PDF)

Census Data for Pennsylvania Counties

(Links below lead to Quick Facts for Pennsylvania Counties: People, Business & Geography at U.S. Census Bureau.)

Area 7/1/2009 7/1/2008 7/1/2007 7/1/2006 7/1/2005 7/1/2004 7/1/2003 7/1/2002 7/1/2001 7/1/2000 Census 2000
Pennsylvania 12,604,767 12,566,368 12,522,531 12,471,142 12,418,161 12,388,368 12,357,524 12,326,302 12,299,533 12,285,504 12,281,054
Adams County 102,323 101,943 101,241 100,465 99,081 97,718 95,841 94,242 92,821 91,594 91,292
Allegheny County 1,218,494 1,218,227 1,219,922 1,223,239 1,232,483 1,245,875 1,257,196 1,265,422 1,272,519 1,279,927 1,281,666
Armstrong County 67,851 68,449 68,804 69,106 69,822 70,784 71,174 71,455 71,797 72,314 72,392
Beaver County 171,673 172,396 173,015 173,928 175,372 176,877 177,887 178,611 179,598 181,113 181,412
Bedford County 49,579 49,799 49,657 49,669 49,535 49,733 49,759 49,763 49,841 50,022 49,984
Berks County 407,125 404,771 402,476 399,279 393,788 389,177 384,547 380,629 377,155 374,521 373,638
Blair County 126,122 125,923 125,987 126,008 125,882 126,532 126,844 127,346 128,336 129,030 129,144
Bradford County 61,131 61,209 61,347 61,441 61,747 61,803 61,952 62,326 62,496 62,760 62,761
Bucks County 626,015 623,562 621,334 619,245 616,047 613,691 610,131 607,465 603,241 599,454 597,635
Butler County 184,694 183,663 182,488 181,676 180,074 179,405 178,664 177,504 175,847 174,519 174,083
Cambria County 143,998 144,488 145,061 145,822 146,726 147,704 148,710 149,851 150,995 152,240 152,598
Cameron County 5,163 5,267 5,350 5,405 5,483 5,582 5,734 5,804 5,897 5,943 5,974
Carbon County 63,865 63,623 63,163 62,098 61,532 60,645 59,991 59,549 59,201 58,826 58,802
Centre County 146,212 145,550 144,089 144,037 141,643 141,140 140,606 139,341 136,874 135,930 135,758
Chester County 498,894 493,281 487,567 480,200 471,562 463,900 455,877 448,746 441,763 435,829 433,501
Clarion County 39,479 39,753 39,865 40,131 40,055 40,185 41,038 41,068 41,484 41,753 41,765
Clearfield County 82,324 82,574 82,895 82,673 81,943 82,142 82,467 82,960 82,973 83,368 83,382
Clinton County 36,797 36,992 37,125 37,230 37,169 37,227 37,384 37,521 37,706 37,915 37,914
Columbia County 65,111 65,060 64,789 64,670 64,554 64,595 64,490 64,354 64,264 64,109 64,151
Crawford County 88,521 88,524 88,990 88,972 89,042 89,382 89,616 89,950 90,115 90,348 90,366
Cumberland County 232,483 230,329 227,762 225,983 222,735 220,826 219,181 217,291 215,115 214,010 213,674
Dauphin County 258,934 258,222 256,864 254,776 253,203 252,699 252,932 252,616 251,646 251,832 251,798
Delaware County 558,028 556,251 555,019 553,664 552,126 551,681 552,355 552,588 552,663 552,092 550,864
Elk County 32,011 32,274 32,638 32,823 33,225 33,710 34,046 34,362 34,757 35,035 35,112
Erie County 280,291 279,647 279,804 279,929 278,933 279,790 282,200 281,920 281,524 280,734 280,843
Fayette County 142,605 143,289 144,033 144,453 145,245 145,825 145,382 146,177 147,062 148,512 148,644
Forest County 6,775 6,808 6,926 7,010 6,536 5,788 4,955 4,995 5,045 4,943 4,946
Franklin County 144,994 143,787 142,008 139,978 137,012 134,274 132,441 131,257 130,160 129,538 129,313
Fulton County 14,852 14,938 14,936 14,742 14,571 14,506 14,435 14,277 14,193 14,258 14,261
Greene County 39,245 39,380 39,351 39,559 40,009 39,622 39,944 40,253 40,358 40,668 40,672
Huntingdon County 45,395 45,515 45,530 45,417 45,537 45,608 45,666 45,633 45,556 45,608 45,586
Indiana County 87,450 87,557 87,439 87,745 87,956 88,418 88,884 88,879 89,167 89,533 89,605
Jefferson County 44,634 44,920 45,060 45,068 45,142 45,277 45,443 45,477 45,649 45,901 45,932
Juniata County 23,118 23,095 23,080 23,096 23,146 23,105 22,932 22,817 22,729 22,840 22,821
Lackawanna County 208,801 209,292 209,339 208,882 209,184 209,398 209,887 210,800 212,072 212,927 213,295
Lancaster County 507,766 503,807 499,364 494,393 489,258 485,676 481,803 478,078 474,420 471,818 470,658
Lawrence County 90,160 90,555 90,901 91,265 91,929 92,637 93,258 93,715 94,021 94,622 94,643
Lebanon County 130,506 129,302 128,197 126,586 124,819 123,597 122,426 121,313 120,825 120,416 120,327
Lehigh County 343,519 341,184 337,688 333,969 329,026 324,428 320,354 316,676 314,790 312,688 312,090
Luzerne County 312,845 312,138 311,934 311,230 311,449 311,652 312,701 313,764 315,525 318,564 319,250
Lycoming County 116,840 116,666 116,838 117,186 117,687 118,075 118,243 118,523 119,115 119,957 120,044
McKean County 43,196 43,436 43,629 43,964 43,886 44,345 44,807 45,346 45,218 45,780 45,936
Mercer County 116,071 116,660 117,133 117,540 118,084 118,708 119,117 119,310 119,756 120,180 120,293
Mifflin County 45,937 45,973 46,007 45,934 45,954 45,987 46,172 46,416 46,473 46,491 46,486
Monroe County 166,355 165,540 164,670 162,891 160,169 156,762 152,999 148,277 143,560 139,771 138,687
Montgomery County 782,339 778,452 775,631 772,968 772,142 770,700 768,240 763,218 757,879 750,975 750,097
Montour County 17,715 17,702 17,754 17,806 17,905 17,950 18,060 18,118 18,252 18,279 18,236
Northampton County 298,990 296,965 294,817 290,971 286,309 282,227 277,232 273,141 269,429 267,465 267,066
Northumberland County 91,311 91,220 91,148 91,190 91,561 92,057 92,585 93,063 93,534 94,472 94,556
Perry County 45,502 45,251 45,157 44,835 44,493 44,268 44,058 43,804 43,750 43,612 43,602
Philadelphia County 1,547,297 1,540,351 1,530,031 1,520,251 1,517,628 1,514,658 1,510,068 1,510,550 1,512,507 1,513,800 1,517,550
Pike County 60,529 59,975 58,582 57,232 55,357 53,404 51,695 49,712 48,023 46,607 46,302
Potter County 16,714 16,868 17,131 17,475 17,520 17,753 17,928 18,118 18,070 18,120 18,080
Schuylkill County 146,952 147,154 147,226 146,959 146,059 146,389 147,281 148,458 149,110 150,086 150,336
Snyder County 38,519 38,473 38,380 38,159 37,774 37,954 37,891 37,795 37,744 37,537 37,546
Somerset County 76,953 77,302 77,735 78,140 78,418 78,923 79,380 79,411 79,412 79,998 80,023
Sullivan County 6,140 6,151 6,245 6,246 6,313 6,393 6,446 6,512 6,572 6,566 6,556
Susquehanna County 40,646 40,895 41,068 41,407 41,562 41,606 41,678 41,744 42,127 42,210 42,238
Tioga County 40,875 40,791 40,686 40,731 41,059 41,313 41,375 41,458 41,415 41,327 41,373
Union County 43,560 43,626 43,589 43,594 42,753 42,532 42,056 42,037 41,949 41,647 41,624
Venango County 54,183 54,505 54,789 55,123 55,487 55,791 56,289 56,623 57,039 57,459 57,565
Warren County 40,638 40,776 41,003 41,153 41,554 42,155 42,523 42,966 43,526 43,785 43,863
Washington County 207,389 206,740 205,748 205,435 204,874 203,728 203,558 202,968 203,087 202,943 202,897
Wayne County 51,337 51,268 51,837 51,602 50,123 49,272 48,837 48,292 47,992 47,893 47,722
Westmoreland County 362,251 362,627 363,131 363,645 364,458 365,325 366,332 366,836 368,313 369,695 369,993
Wyoming County 27,808 27,891 27,939 27,874 27,896 27,989 27,919 27,926 28,084 28,046 28,080
York County 428,937 425,766 421,589 414,969 406,555 399,490 393,622 388,885 385,397 382,749 381,751

Source: Population Division, U.S. Census Bureau