Learn About
The Commemorative
Quarter for
The Commemorative Quarter for Missouri

The 2000 Census showed that Adair County had a population of 24,977 people. This represented 0.45% of the total population of Missouri, making it the state's 40th most populous county (out of 115 counties).

From the Census Estimates for 2009<1>, Adair had a population of 25,135 people. This is an increase of 0.63% 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
201025,607+2.52%+1.88% since 2009
200925,135+0.63%+0.55% since 2008
200724,629-1.39%-0.19% since 2006
200624,675-1.21%+0.43% since 2005
200524,569-1.63%-0.78% since 2004
200324,785-0.77%-0.76% since 2002
200124,919-0.23%-0.23% since 2000
200024,977The Last Census

Adair County had 10,826 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Adair County has a total area<3> of 569 square miles [1,474 km²]. Of this total, only a minor amount of that area is covered by water (2.31 square miles [5.99 km²]).

Using the above population and land area values, Adair County had a population density of 44.05 people per square mile [17.01 people/km²], making it the state's 37th 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 Adair County is available. The QuickFact also contains a comparison between Adair and the state of Missouri.

Click here for the Adair County QuickFact (QF-29001).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
KnoxQF-29103   E3,9814,361-8.71%
LinnQF-29115   SW12,60613,754-8.35%
MaconQF-29121   S15,35915,762-2.56%
PutnamQF-29171   NW4,7595,223-8.88%
SchuylerQF-29197   N4,1444,170-0.62%
ScotlandQF-29199   NE4,8034,983-3.61%
ShelbyQF-29205   SE6,3256,799-6.97%
SullivanQF-29211   W6,8357,219-5.32%

Other Roadside Stops ...

About Missouri

Visit our Community Index for Missouri

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Adair 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.

- Return to Citation

<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).

- Return to Citation

<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Adair. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

- Return to Citation

<4>All Quarter-dollar coin images from the United States Mint.

- Return to Citation