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The Commemorative Quarter for Missouri

The 2000 Census showed that Clark County had a population of 7,416 people. This represented 0.13% of the total population of Missouri, making it the state's 101st most populous county (out of 115 counties).

From the Census Estimates for 2009<1>, Clark had a population of 7,127 people. This is a decrease of 3.9% 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
20107,139-3.74%+0.17% since 2009
20097,127-3.9%-0.46% since 2008
20087,160-3.45%-0.56% since 2007
20077,200-2.91%+0.11% since 2006
20067,192-3.02%-0.26% since 2005
20057,211-2.76%-0.28% since 2004
20047,231-2.49%-0.59% since 2003
20037,274-1.91%-1.25% since 2002
20027,366-0.67%-0.9% since 2001
20017,433+0.23%+0.23% since 2000
20007,416The Last Census

Clark County had 3,483 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Clark County has a total area<3> of 511 square miles [1,325 km²]. Of this total, only a minor amount of that area is covered by water (4.59 square miles [11.89 km²]).

Using the above population and land area values, Clark County had a population density of 14.62 people per square mile [5.64 people/km²], making it the state's 95th most densely populated county (out of 115 counties).

US Census QuickFacts

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

Click here for the Clark County QuickFact (QF-29045).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
Lee (IA)QF-19111   NE35,44738,052-6.85%
Van Buren (IA)QF-19177   NW7,6797,809-1.66%
Hancock (IL)QF-17067   E18,35920,121-8.76%
KnoxQF-29103   SW3,9814,361-8.71%
LewisQF-29111   S9,79110,494-6.7%
ScotlandQF-29199   W4,8034,983-3.61%

The Mississippi River runs along the eastern border of the county.

Other Roadside Stops ...

About Missouri

Index of Cities, Towns and Villages for Missouri

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Clark 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 Clark. 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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