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The 2000 Census showed that Dunn County had a population of 39,858 people. This represented 0.74% of the total population of Wisconsin, making it the state's 36th most populous county (out of 72 counties).

From the Census Estimates for 2009<1>, Dunn had a population of 42,968 people. This is an increase of 7.8% 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
201043,857+10.03%+2.07% since 2009
200942,968+7.8%+0.59% since 2008
200842,714+7.17%+0.37% since 2007
200742,556+6.77%+0.6% since 2006
200642,304+6.14%+1.84% since 2005
200541,540+4.22%+0.51% since 2004
200441,329+3.69%+0.93% since 2003
200340,947+2.73%+0.4% since 2002
200240,785+2.33%+0.63% since 2001
200140,530+1.69%+1.69% since 2000
200039,858The Last Census

Dunn County had 15,277 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Dunn County has a total area<3> of 863 square miles [2,237 km²]. Of this total, 852 square miles [2,206 km²] of the area is land, with the balance (1.38%) being water (11.89 square miles [30.79 km²]).

Using the above population and land area values, Dunn County had a population density of 46.78 people per square mile [18.06 people/km²], making it the state's 35th most densely populated county (out of 72 counties).

US Census QuickFacts

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

Click here for the Dunn County QuickFact (QF-55033).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
BarronQF-55005   N45,59144,9631.4%
ChippewaQF-55017   E60,60955,1959.81%
Eau ClaireQF-55035   SE99,40993,1426.73%
PepinQF-55091   S7,2937,2131.11%
PierceQF-55093   SW40,08136,8048.9%
PolkQF-55095   NW44,25241,3197.1%
Saint CroixQF-55109   W83,35163,15531.98%

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U.S. Census Bureau
Census QuickFact for Dunn 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 Dunn. 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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