Population, Pennsylvania's 15 Largest Cities, April 1, 2000 to July 1, 2005  
Municipality April 1, 2000 Estimates Base July 1, 2004 Estimate July 1, 2005 Estimate Numeric Change 2000 Estimate Base to July 1, 2004 Percent Change 2000 Estimate Base to July 1, 2005 Numeric Change July 1, 2004 to July 1, 2005 Percent Change July 1, 2004 to July 1, 2005  
Abington township 55,991 55,548 55,265 -726 -1.3 -283 -0.5  
Allentown city 106,632 106,578 106,992 360 0.3 414 0.4  
Bensalem township 58,434 58,538 58,745 311 0.5 207 0.4  
Bethlehem city 52,300 53,514 53,535 1,235 2.4 21 0.0  
Bristol township 55,568 54,780 54,586 -982 -1.8 -194 -0.4  
Erie city 103,688 102,739 102,612 -1,076 -1.0 -127 -0.1  
Haverford township 49,608 48,847 48,767 -841 -1.7 -80 -0.2  
Lancaster city 56,356 55,039 54,757 -1,599 -2.8 -282 -0.5  
Lower Merion township 58,740 58,453 58,219 -521 -0.9 -234 -0.4  
Millcreek township 52,158 52,657 52,666 508 1.0 9 0.0  
Philadelphia city 1,517,550 1,471,255 1,463,281 -54,269 -3.6 -7,974 -0.5  
Pittsburgh city 334,563 320,828 316,718 -17,845 -5.3 -4,110 -1.3  
Reading city 81,207 80,701 80,855 -352 -0.4 154 0.2  
Scranton city 76,081 73,629 73,120 -2,961 -3.9 -509 -0.7  
Upper Darby township 81,821 79,836 79,620 -2,201 -2.7 -216 -0.3  
Prepared by the Pennsylvania State Data Center
June 21, 2006
Source:  U.S. Census Bureau, Population Estimates Division