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The Commemorative Quarter for Wisconsin

The 2000 Census showed that Winnebago County had a population of 156,763 people. This represented 2.92% of the total population of Wisconsin, making it the state's 7th most populous county (out of 72 counties).

From the Census Estimates for 2009<1>, Winnebago had a population of 163,370 people. This is an increase of 4.21% 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
2010166,994+6.53%+2.22% since 2009
2009163,370+4.21%+0.78% since 2008
2008162,099+3.4%+0.39% since 2007
2007161,470+3%+0.63% since 2006
2006160,456+2.36%+0.58% since 2005
2005159,536+1.77%+0.58% since 2004
2004158,614+1.18%+0.2% since 2003
2002158,431+1.06%+0.4% since 2001
2001157,799+0.66%+0.66% since 2000
2000156,763The Last Census

Winnebago County had 64,721 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Winnebago County has a total area<3> of 578 square miles [1,498 km²]. Of this total, 438.6 square miles [1,135 km²] of the area is land, with the balance (24.21%) being water (140.1 square miles [362.9 km²]).

Using the above population and land area values, Winnebago County had a population density of 357.4 people per square mile [138 people/km²], making it the state's 6th 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 Winnebago County is available. The QuickFact also contains a comparison between Winnebago and the state of Wisconsin.

Click here for the Winnebago County QuickFact (QF-55139).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
CalumetQF-55015   E44,73940,63110.11%
Fond du LacQF-55039   S100,07097,2962.85%
Green LakeQF-55047   SW18,47219,105-3.31%
OutagamieQF-55087   NE177,155160,97110.05%
WaupacaQF-55135   NW51,66551,731-0.13%
WausharaQF-55137   W24,60623,1546.27%

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U.S. Census Bureau
Census QuickFact for Winnebago 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 Winnebago. 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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