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The Commemorative
Quarter for
The Commemorative Quarter for Pennsylvania

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.

Since 2000
Year-to-Year Change
20101,526,006+0.56%-1.38% since 2009
20091,547,297+1.96%+0.45% since 2008
20081,540,351+1.5%+0.67% since 2007
20071,530,031+0.82%+0.64% since 2006
20061,520,251+0.18%+0.17% since 2005
20041,514,658-0.19%+0.3% since 2003
20021,510,550-0.46%-0.13% since 2001
20011,512,507-0.33%-0.33% since 2000
20001,517,550The 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.

(2009 Est.)
(2000 Census)
Change in
Burlington (NJ)QF-34005   E446,108423,3945.36%
Camden (NJ)QF-34007   SE517,879508,9321.76%
Gloucester (NJ)QF-34015   S289,920254,67313.84%
BucksQF-42017   N626,015597,6354.75%
DelawareQF-42045   SW558,028550,8641.3%
MontgomeryQF-42091   NW782,339750,0974.3%

Other Roadside Stops ...

About Pennsylvania

Visit our Community Index for Pennsylvania

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Philadelphia County

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

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<2>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).

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<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Philadelphia. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

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<4>All Quarter-dollar coin images from the United States Mint.

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