Pennsylvania Census Data
Data for Pennsylvania show that the five most populous cities or townships and their 2010 Census counts are Philadelphia, 1,526,006; Pittsburgh, 305,704; Allentown, 118,032; Erie, 101,786; and Reading, 88,082. Philadelphia grew by 0.6 percent since the 2000 Census.Pittsburgh decreased by 8.6 percent, Allentown grew by 10.7 percent, Erie decreased by 1.9 percent, and Reading grew by 8.5 percent.
The largest county is Philadelphia, with a population of 1,526,006. Its population grew by 0.6 percent since 2000. The other counties in the top five include Allegheny, with a population of 1,223,348 (decrease of 4.6 percent); Montgomery, 799,874 (increase of 6.6 percent); Bucks, 625,249 (increase of 4.6 percent); and Delaware, 558,979 (increase of 1.5 percent). (Philadelphia city and county cover the same geographic area.) Read More »