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The Commemorative
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South Dakota
The Commemorative Quarter for South Dakota

The 2000 Census showed that Pennington County had a population of 88,565 people. This represented 11.73% of the total population of South Dakota, making it the state's 2nd most populous county (out of 66 counties).

From the Census Estimates for 2009<1>, Pennington had a population of 100,850 people. This is an increase of 13.87% 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
2010100,948+13.98%+0.1% since 2009
2009100,850+13.87%+2.03% since 2008
200898,845+11.61%+2.41% since 2007
200796,517+8.98%+1.79% since 2006
200694,817+7.06%+1.42% since 2005
200593,488+5.56%+0.64% since 2004
200492,890+4.88%+1.56% since 2003
200391,467+3.28%+0.7% since 2002
200290,831+2.56%+0.95% since 2001
200189,974+1.59%+1.59% since 2000
200088,565The Last Census

Pennington County had 37,249 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Pennington County has a total area<3> of 2,784 square miles [7,211 km²]. Of this total, only a minor amount of that area is covered by water (8.16 square miles [21.13 km²]).

Using the above population and land area values, Pennington County had a population density of 31.9 people per square mile [12.32 people/km²], making it the state's 8th most densely populated county (out of 66 counties).

US Census QuickFacts

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

Click here for the Pennington County QuickFact (QF-46103).

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

(2009 Est)
(2000 Census)
Change in
Rapid CityQF-465298067,10759,60712.58%
Central PenningtonQF-461116514,31213,3697.05%
Mount RushmoreQF-46440706,9526,3619.29%

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

(2009 Est.)
(2000 Census)
Change in
CusterQF-46033   SW7,9247,2758.92%
HaakonQF-46055   E1,7772,196-19.08%
JacksonQF-46071   E2,6582,930-9.28%
LawrenceQF-46081   NW23,49821,8027.78%
MeadeQF-46093   N23,91624,253-1.39%
ShannonQF-46113   SE13,72712,46610.12%
Weston (WY)QF-56045   W7,0096,6445.49%

Other Roadside Stops ...

About South Dakota

The Communities of South Dakota

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Pennington 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 Pennington. 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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