Eau Claire county was originally set off as theTown of Clearwater inChippewa County in 1855. The name was changed to the Town of Eau Claire on March 31, 1856. The entire town was separated as Eau Claire County by an act of theWisconsin State Legislature on October 6, 1856.[6][7]
According to theU.S. Census Bureau, the county has a total area of 645 square miles (1,670 km2), of which 638 square miles (1,650 km2) is land and 7.3 square miles (19 km2) (1.1%) is water.[8]
As of thecensus[15] of 2000, there were 93,142 people, 35,822 households, and 22,281 families residing in the county. Thepopulation density was 146 people per square mile (56 people/km2). There were 37,474 housing units at an average density of 59 units per square mile (23 units/km2). The racial makeup of the county was 94.96%White, 0.52%Black orAfrican American, 0.54%Native American, 2.52%Asian, 0.03%Pacific Islander, 0.33% fromother races, and 1.11% from two or more races. 0.94% of the population wereHispanic orLatino of any race. 37.4% were ofGerman, 21.5%Norwegian and 7.0%Irish ancestry. 94.2% spokeEnglish, 1.6%Hmong, 1.6%Spanish and 1.0%German as their first language.
There were 35,822 households, out of which 30.00% had children under the age of 18 living with them, 50.60% weremarried couples living together, 8.60% had a female householder with no husband present, and 37.80% were non-families. 27.10% of all households were made up of individuals, and 10.10% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 3.02.
In the county, the population was spread out, with 23.40% under the age of 18, 17.10% from 18 to 24, 26.70% from 25 to 44, 20.50% from 45 to 64, and 12.20% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 93.80 males. For every 100 females age 18 and over, there were 90.60 males.
In 2017, there were 1,191 births, giving a general fertility rate of 52.8 births per 1000 women aged 15–44, the tenth lowest rate out of all 72 Wisconsin counties. Of these, 99 of the births occurred at home, the third highest for Wisconsin counties.[16]
In 2010, the largest religious groups by reported number of adherents were Catholic at 16,240 adherents, ELCA Lutheran at 15,067 adherents, Missouri Synod Lutheran at 6,953 adherents, LCMC Lutheran at 3,355 adherents, United Methodist at 2,177 adherents, non-denominational Christian at 1,557 adherents, Lutheran Brethren at 1,391 adherents, United Church of Christ at 1,046 adherents, Assemblies of God at 969 adherents, Amish at 794 adherents, Wisconsin Synod Lutheran at 757 adherents, ELS Lutheran at 708 adherents, and LDS (Mormon) at 703 adherents.[17]
The legislative body of Eau Claire County is the non-partisan 29-memberEau Claire County Board of Supervisors.[18] Members of theboard of supervisors are elected by district and the chairperson and vice-chair positions are elected from within members of the board.
The board meets in the Eau Claire County Courthouse in downtownEau Claire,[19] with its weekly meetings televised on local public television and transcripts published online. Most items are approved on a "consent calendar" without discussion.[20] Public comment is limited to three minutes per individual per item.
In presidential elections, due in part to the presence of theUniversity of Wisconsin-Eau Claire, Eau Claire County is solidly Democratic. The last Republican to win the county wasRonald Reagan in his landslide re-election of1984, and even then he only won the county by a margin of 2.64 percent, smaller thanRichard Nixon's margin of 5.12 percent in his landslide1972 re-election.
United States presidential election results for Eau Claire County, Wisconsin[21]
Political map of Eau Claire County, showing major and minor civil divisions, and adjacent counties. Note: A small portion of the city of Eau Claire is inChippewa Co.
^Taken from Wisconsin Blue Book 1991–1992 p. 731; cited there as from "Wisconsin Historical Records,Origin and Legislative History of County Boundariesio in Wisconsin, 1942."