The 2000 Census showed that Philadelphia County had a population of 1,517,550 people. This represented 12.36% of the total population of Pennsylvania, making it the state's most populous county (out of 67 counties).
From the Census Estimates for 2009<1>, Philadelphia had a population of 1,547,297 people. This is an increase of 1.96% since the 2000 Census.
The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.
Year | Population | Change Since 2000 | Year-to-Year Change |
2010 | 1,526,006 | +0.56% | -1.38% since 2009 |
2009 | 1,547,297 | +1.96% | +0.45% since 2008 |
2008 | 1,540,351 | +1.5% | +0.67% since 2007 |
2007 | 1,530,031 | +0.82% | +0.64% since 2006 |
2006 | 1,520,251 | +0.18% | +0.17% since 2005 |
2005 | 1,517,628 | | |
2004 | 1,514,658 | -0.19% | +0.3% since 2003 |
2003 | 1,510,068 | -0.49% | |
2002 | 1,510,550 | -0.46% | -0.13% since 2001 |
2001 | 1,512,507 | -0.33% | -0.33% since 2000 |
--- | | | 2000 | 1,517,550 | The Last Census |
Philadelphia County had 661,958 Housing Units<2> at the time of the 2000 Census.
The 2000 Census shows that Philadelphia County has a total area<3> of 142.6 square miles [369.4 km²]. Of this total, 135.1 square miles [349.9 km²] of the area is land, with the balance (5.29%) being water (7.55 square miles [19.54 km²]).
Using the above population and land area values, Philadelphia County had a population density of 11,233 people per square mile [4,337 people/km²], making it the most densely populated county in Pennsylvania.
US Census QuickFacts
The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Philadelphia County is available. The QuickFact also contains a comparison between Philadelphia and the state of Pennsylvania. Click here for the Philadelphia County QuickFact (QF-42101).
Below are the counties that adjoin and form the boundaries of Philadelphia County. A link to their specific Census QuickFact has been provided.
County | Census QuickFact | Direction | Population (2009 Est.) | Population (2000 Census) | Change in Population |
Burlington (NJ) | QF-34005 | E | 446,108 | 423,394 | 5.36% |
Camden (NJ) | QF-34007 | SE | 517,879 | 508,932 | 1.76% |
Gloucester (NJ) | QF-34015 | S | 289,920 | 254,673 | 13.84% |
Bucks | QF-42017 | N | 626,015 | 597,635 | 4.75% |
Delaware | QF-42045 | SW | 558,028 | 550,864 | 1.3% |
Montgomery | QF-42091 | NW | 782,339 | 750,097 | 4.3% |
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