1990 Census and 1994 Population Estimates
Census Estimate Percent
County 1990 1994 Change Change
Pennsylvania 11,882,842 12,052,367 169,525 1.4
Adams County 78,274 83,458 5,184 6.6
Allegheny County 1,336,449 1,320,704 -15,745 -1.2
Armstrong County 73,478 74,599 1,121 1.5
Beaver County 186,093 188,297 2,204 1.2
Bedford County 47,919 48,984 1,065 2.2
Berks County 336,523 347,625 11,102 3.3
Blair County 130,542 131,819 1,277 1.0
Bradford County 60,967 62,056 1,089 1.8
Bucks County 541,174 567,238 26,064 4.8
Butler County 152,013 161,890 9,877 6.5
Cambria County 163,062 160,729 -2,333 -1.4
Cameron County 5,913 5,783 -,130 -2.2
Carbon County 56,973 58,869 1,896 3.3
Centre County 124,812 129,833 5,021 4.0
Chester County 376,396 397,307 20,911 5.6
Clarion County 41,699 42,123 424 1.0
Clearfield County 78,097 79,397 1,300 1.7
Clinton County 37,182 37,435 253 0.7
Columbia County 63,202 63,897 695 1.1
Crawford County 86,170 87,984 1,814 2.1
Cumberland County 195,257 204,612 9,355 4.8
Dauphin County 237,813 245,561 7,748 3.3
Delaware County 547,651 548,366 715 0.1
Elk County 34,878 35,173 295 0.8
Erie County 275,572 280,318 4,746 1.7
Fayette County 145,351 146,534 1,183 0.8
Forest County 4,802 4,812 10 0.2
Franklin County 121,082 125,998 4,916 4.1
Fulton County 13,837 14,262 425 3.1
Greene County 39,550 40,169 619 1.6
Huntingdon County 44,164 44,529 365 0.8
Indiana County 89,994 90,638 644 0.7
Jefferson County 46,083 46,615 532 1.2
Juniata County 20,625 21,450 825 4.0
Lackawanna County 219,097 216,007 -3,090 -1.4
Lancaster County 422,822 442,679 19,857 4.7
Lawrence County 96,246 96,580 334 0.3
Lebanon County 113,744 116,417 2,673 2.4
Lehigh County 291,130 297,876 6,746 2.3
Luzerne County 328,149 327,726 -,423 -0.1
Lycoming County 118,710 120,939 2,229 1.9
McKean County 47,131 48,529 1,398 3.0
Mercer County 121,003 122,160 1,157 1.0
Mifflin County 46,197 47,011 814 1.8
Monroe County 95,582 112,111 16,529 17.3
Montgomery County 678,193 700,308 22,115 3.3
Montour County 17,735 18,218 483 2.7
Northampton County 247,105 255,007 7,902 3.2
Northumberland County 96,771 95,732 -1,039 -1.1
Perry County 41,172 43,117 1,945 4.7
Philadelphia County 1,585,577 1,524,338 -61,239 -3.9
Pike County 27,966 35,489 7,523 26.9
Potter County 16,717 17,061 344 2.1
Schuylkill County 152,585 153,351 766 0.5
Snyder County 36,680 37,699 1,019 2.8
Somerset County 78,218 79,030 812 1.0
Sullivan County 6,104 6,088 -16 -0.3
Susquehanna County 40,380 41,529 1,149 2.8
Tioga County 41,126 41,894 768 1.9
Union County 36,176 37,298 1,122 3.1
Venango County 59,381 59,211 -,170 -0.3
Warren County 45,049 45,062 13 0.0
Washington County 204,584 208,119 3,535 1.7
Wayne County 39,944 43,111 3,167 7.9
Westmoreland County 370,321 376,446 6,125 1.7
Wyoming County 28,076 29,353 1,277 4.5
York County 339,574 357,807 18,233 5.4
Source: PA State Data Center and U.S. Census Bureau
Prepared by: The Pennsylvania State Data Center, Penn State Harrisburg