Demographia

Philadelphia Metropolitan Area, Urbanized Area
& Urbanized Density from 1900

Year Population Land Area (Square Miles) Population Density Metropolitan Area: 2003 Geographic Definition Urbanized Area Share
1900 1,350,000 39 34,615 2,103,000 64%
1950 2,922,000 312 9,365 4,061,000 72%
1960 3,635,000 597 6,089 4,864,000 75%
1970 4,021,000 752 5,347 5,439,000 74%
1980 4,112,000 1,015 4,051 5,373,000 77%
1990 4,222,000 1,164 3,627 5,573,000 76%
2000 5,149,000 1,800 2,861 5,833,000 88%
           
Data: Before 1950, Demographia estimates based upon Census data and map examination. 1950 to 2000, US Census Bureau
           
Note: The Census Bureau redefined urbanized area standards between 1990 and 2000. The Philadelphia urbanized area growth was principally due to the reclassification of already developed areas as a part of the urbanized area. The Philadelphia urbanized area grew 22 percent (927,000), yet the larger Philadelphia metropolitan area, which includes all of the urbanized area, grew only 5 percent. (260,000)

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