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Jefferson County, Wisconsin
Map of Wisconsin highlighting Jefferson County
Location in the state of Wisconsin
Map of USA WI
Wisconsin's location in the U.S.
Founded 1836
Seat Jefferson
Largest city Watertown
 - Total
 - Land
 - Water

583 sq mi (1,509 km²)
557 sq mi (1,443 km²)
26 sq mi (67 km²), 4.42%
 - (2000)
 - Density

133/sq mi (51/km²)
Time zone Central: UTC-6/-5

Jefferson County is a county located in the U.S. state of Wisconsin. As of 2000, the population was 74,021. Its county seat is Jefferson.[1]


According to the U.S. Census Bureau, the county has a total area of 583 square miles (1,510.0 km2), of which 557 square miles (1,442.6 km2) is land and 26 square miles (67.3 km2) (4.42%) is water.

Major highwaysEdit

Adjacent countiesEdit


USA Jefferson County, Wisconsin age pyramid

2000 Census Age Pyramid for Jefferson County.

Historical populations
Census Pop.
1900 34,789
1910 34,306 −1.4%
1920 35,022 2.1%
1930 36,785 5.0%
1940 38,868 5.7%
1950 43,069 10.8%
1960 50,094 16.3%
1970 60,060 19.9%
1980 66,152 10.1%
1990 67,783 2.5%
2000 74,021 9.2%
2010 83,686 13.1%
WI Counties 1900-1990

As of the census[2] of 2000, there were 74,021 people, 28,205 households, and 19,884 families residing in the county. The population density was 133 people per square mile (51/km²). There were 30,092 housing units at an average density of 54 per square mile (21/km²). The racial makeup of the county was 96.34% White, 0.28% Black or African American, 0.34% Native American, 0.45% Asian, 0.02% Pacific Islander, 1.65% from other races, and 0.93% from two or more races. 4.09% of the population were Hispanic or Latino of any race. 55.1% were of German, 6.1% Norwegian, 6.0% Irish and 5.1% American ancestry according to Census 2000.

There were 28,205 households out of which 33.20% had children under the age of 18 living with them, 58.50% were married couples living together, 8.20% had a female householder with no husband present, and 29.50% were non-families. 23.60% of all households were made up of individuals and 9.60% had someone living alone who was 65 years of age or older. The average household size was 2.55 and the average family size was 3.02.

In the county, the population was spread out with 25.20% under the age of 18, 8.50% from 18 to 24, 30.40% from 25 to 44, 23.20% from 45 to 64, and 12.60% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 98.40 males. For every 100 females age 18 and over, there were 96.80 males.



Jefferson County courthouse

Jefferson County Government
County Clerk Barbara A. Frank
County Treasurer: John E. Jensen
Register of Deeds: Staci Hoffman
Clerk of Circuit Court: Carla Robinson
Sheriff: Paul Milbrath
District Attorney: Susan V. Happ
Coroner: Patrick J. Theder
County Administrator: Gary Petre
County Board Chairmen: Sharon L. Schmeling
Vice Chairmen: Steven J. Nass
Second Vice Chairmen: Jim Mode

The County Board of Supervisors, with 30 members, serves as the legislative body for the county. There are seven elected officials in addition to the County Board of Supervisors. County-wide partisan elections are held in November. The County Board's members are elected for two-year terms during a spring non-partisan election. The County Board is responsible for the county administrator. The Jefferson County Administrator is Gary Petre. The County Board also elects a chairman, vice-chairman, and second vice-chairman. Members of the County Board of Supervisors are as follows:

District Name District Name
1Richard C. Jones 2Vic Imrie, Jr.
3Greg David 4Gail Towers MacAskill
5Rodney L. Laudenslager 6Ron Buchanan
7Dwayne C. Morris 8Rick L. Kuhlman
9Howard C.Wiedenhoeft 10Randy Mitchell
11Donald Reese 12Mike Burow
13James G. Maurer 14Pamela Rogers
15Steven J. Nass 16John Molinaro
17Carol Ward Knox 18Sharon L.Schmeling
19Amy Kramer 20John C. Kannard
21Robert G.Yachinich 22Blane Poulson
23George Jaeckel 24Gregory M. Torres
25August J. Lehmann 26Carlton Zentner
27Glen D. Borland 28Julie J. Nelson
29Paul G. Babcock 30Jim Mode

(County Board terms expire April 15, 2008)

Cities, villages, and townsEdit

Unincorporated communitiesEdit

See alsoEdit


  1. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  2. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

External linksEdit

Wikimedia Commons has media related to:

Coordinates: 43°01′N 88°47′W / 43.02, -88.78

This page uses content from the English language Wikipedia. The original content was at Jefferson County, Wisconsin. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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