Population Change 1990-2000
County or Municipality	2000 Population	1990 Population	Population Change	Percent Change
Pennsylvania	12 281 054	11 881 643	399 411	3.4
Philadelphia County	1 517 550	1 585 577	- 68 027	- 4.3
Philadelphia city	1 517 550	1 585 577	- 68 027	- 4.3
Source: U.S. Census Bureau	Prepared by: Pennsylvania State Data Center