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The Commemorative Quarter for Pennsylvania

The 2000 Census showed that Chester County had a population of 433,501 people. This represented 3.53% of the total population of Pennsylvania, making it the state's 7th most populous county (out of 67 counties).

From the Census Estimates for 2009<1>, Chester had a population of 498,894 people. This is an increase of 15.08% 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.

YearPopulationChange
Since 2000
Year-to-Year Change
2010498,886+15.08% 
2009498,894+15.08%+1.14% since 2008
2008493,281+13.79%+1.17% since 2007
2007487,567+12.47%+1.53% since 2006
2006480,200+10.77%+1.83% since 2005
2005471,562+8.78%+1.65% since 2004
2004463,900+7.01%+1.76% since 2003
2003455,877+5.16%+1.59% since 2002
2002448,746+3.52%+1.58% since 2001
2001441,763+1.91%+1.91% since 2000
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2000433,501The Last Census

Chester County had 163,773 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Chester County has a total area<3> of 759 square miles [1,967 km²]. Of this total, only a minor amount of that area is covered by water (3.84 square miles [9.94 km²]).

Using the above population and land area values, Chester County had a population density of 573 people per square mile [221.4 people/km²], making it the state's 8th most densely populated county (out of 67 counties).

US Census QuickFacts

The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Chester County is available. The QuickFact also contains a comparison between Chester and the state of Pennsylvania.

Click here for the Chester County QuickFact (QF-42029).

Below are some of the communities that are located in Chester County:

CommunityCensus
QuickFact
Population
(2009 Est)
Population
(2000 Census)
Change in
  Population
West ChesterQF-428270418,42917,8613.18%
PhoenixvilleQF-426012016,64314,78812.54%
CoatesvilleQF-421471211,76710,8388.57%
DowningtownQF-42197528,0127,5895.57%
Kennett SquareQF-42393525,3105,2730.7%

Below are the counties that adjoin and form the boundaries of Chester County. A link to their specific Census QuickFact has been provided.

CountyCensus
QuickFact
DirectionPopulation
(2009 Est.)
Population
(2000 Census)
Change in
Population
New Castle (DE)QF-10003   S534,634500,2656.87%
Cecil (MD)QF-24015   SW100,79685,95117.27%
BerksQF-42011   NW407,125373,6388.96%
DelawareQF-42045   E558,028550,8641.3%
LancasterQF-42071   W507,766470,6587.88%
MontgomeryQF-42091   NE782,339750,0974.3%

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U.S. Census Bureau
Census QuickFact for Chester 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 Chester. 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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