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The Commemorative
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The Commemorative Quarter for West Virginia

The 2000 Census showed that Monongalia County had a population of 81,866 people. This represented 4.53% of the total population of West Virginia, making it the state's 4th most populous county (out of 55 counties).

From the Census Estimates for 2009<1>, Monongalia had a population of 90,080 people. This is an increase of 10.03% 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
201096,189+17.5%+6.78% since 2009
200990,080+10.03%+1.67% since 2008
200888,601+8.23%+1.18% since 2007
200787,572+6.97%+0.81% since 2006
200686,871+6.11%+0.78% since 2005
200586,196+5.29%+1.02% since 2004
200485,323+4.22%+0.79% since 2003
200384,656+3.41%+1.54% since 2002
200283,370+1.84%+0.72% since 2001
200182,773+1.11%+1.11% since 2000
200081,866The Last Census

Monongalia County had 36,695 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Monongalia County has a total area<3> of 365.9 square miles [947 km²]. Of this total, 361.2 square miles [935 km²] of the area is land, with the balance (1.29%) being water (4.73 square miles [12.26 km²]).

Using the above population and land area values, Monongalia County had a population density of 226.7 people per square mile [87.5 people/km²], making it the state's 7th most densely populated county (out of 55 counties).

US Census QuickFacts

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

Click here for the Monongalia County QuickFact (QF-54061).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
Fayette (PA)QF-42051   NE142,605148,644-4.06%
Greene (PA)QF-42059   NW39,24540,672-3.51%
MarionQF-54049   SW56,70656,5980.19%
PrestonQF-54077   SE30,24729,3343.11%
TaylorQF-54091   S16,32816,0891.49%
WetzelQF-54103   W16,22617,693-8.29%

Other Roadside Stops ...

About West Virginia

Cities, Towns and Villages of West Virginia

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Monongalia 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 Monongalia. 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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