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The Commemorative
Quarter for
New York
The Commemorative Quarter for New York

The 2000 Census showed that Westchester County had a population of 923,459 people. This represented 4.87% of the total population of New York, making it the state's 8th most populous county (out of 62 counties).

From the Census Estimates for 2009<1>, Westchester had a population of 955,962 people. This is an increase of 3.52% 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
2010949,113+2.78%-0.72% since 2009
2009955,962+3.52%+0.65% since 2008
2008949,835+2.86%+0.35% since 2007
2007946,563+2.5%+0.15% since 2006
2006945,172+2.35%-0.27% since 2005
2004947,121+2.56%+0.28% since 2003
2003944,440+2.27%+0.29% since 2002
2002941,747+1.98%+0.69% since 2001
2001935,294+1.28%+1.28% since 2000
2000923,459The Last Census

Westchester County had 349,445 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Westchester County has a total area<3> of 500 square miles [1,295 km²]. Of this total, 432.8 square miles [1,121 km²] of the area is land, with the balance (13.45%) being water (67.3 square miles [174.2 km²]).

Using the above population and land area values, Westchester County had a population density of 2,133 people per square mile [823 people/km²], making it the state's 7th most densely populated county (out of 62 counties).

US Census QuickFacts

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

Click here for the Westchester County QuickFact (QF-36119).

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

(2009 Est)
(2000 Census)
Change in
New RochelleQF-365061774,28172,1822.91%
Mount VernonQF-364912168,81568,3810.63%
White PlainsQF-368167757,46853,0778.27%
Mount PleasantQF-364901144,60843,2213.21%
Port ChesterQF-365922328,22227,8671.27%

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U.S. Census Bureau
Census QuickFact for Westchester 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 Westchester. 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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