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The Commemorative
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The Commemorative Quarter for Virginia

The 2000 Census showed that Fairfax County had a population of 969,749 people. This represented 13.7% of the total population of Virginia, making it the state's most populous county (out of 134 counties).

From the Census Estimates for 2009<1>, Fairfax had a population of 1,037,605 people. This is an increase of 7% 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
20101,081,726+11.55%+4.25% since 2009
20091,037,605+7%+1.79% since 2008
20081,019,402+5.12%+1.38% since 2007
20071,005,531+3.69%+0.67% since 2006
2006998,841+3%-0.35% since 2005
20051,002,375+3.36%+0.56% since 2004
2004996,798+2.79%+0.43% since 2003
2003992,494+2.35%+0.3% since 2002
2002989,551+2.04%+0.5% since 2001
2001984,581+1.53%+1.53% since 2000
2000969,749The Last Census

Fairfax County had 359,411 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Fairfax County has a total area<3> of 406.6 square miles [1,053 km²]. Of this total, 395 square miles [1,023 km²] of the area is land, with the balance (2.84%) being water (11.57 square miles [29.96 km²]).

Using the above population and land area values, Fairfax County had a population density of 2,454 people per square mile [947 people/km²], making it the state's 2nd most densely populated county (out of 134 counties).

US Census QuickFacts

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

Click here for the Fairfax County QuickFact (QF-51059).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
Charles (MD)QF-24017   SE142,226120,54617.98%
Montgomery (MD)QF-24031   N971,600873,34111.25%
Prince George's (MD)QF-24033   E834,560801,5154.12%
ArlingtonQF-51013   E217,483189,45314.8%
LoudounQF-51107   NW301,171169,59977.58%
Prince WilliamQF-51153   SW379,166280,81335.02%

Other Roadside Stops ...

About Virginia

The Communities of Virginia

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Fairfax 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 Fairfax. 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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