Jefferson County, Wisconsin facts for kids
Quick facts for kids
Jefferson County courthouse
Location within the U.S. state of Wisconsin
Wisconsin's location within the U.S.
|Named for||Jefferson County, New York|
|• Total||583 sq mi (1,510 km2)|
|• Land||556 sq mi (1,440 km2)|
|• Water||26 sq mi (70 km2) 4.5%%|
|• Density||150/sq mi (60/km2)|
|Time zone||UTC−6 (Central)|
|• Summer (DST)||UTC−5 (CDT)|
Jefferson County was created in 1836 as part of Wisconsin Territory and was organized in 1839. It was named after Jefferson County, New York, where some of the original settlers came from. The town of Watertown, Wisconsin was named after Watertown, New York in Jefferson County, New York.
According to the U.S. Census Bureau, the county has an area of 583 square miles (1,510 km2), of which 556 square miles (1,440 km2) is land and 26 square miles (67 km2) (4.5%) is water.
- Watertown Municipal Airport (KRYV) provides services for the county and surrounding communities.
- Fort Atkinson Municipal Airport (61C), enhances county service.
- Dodge County - north
- Waukesha County - east
- Walworth County - southeast
- Rock County - southwest
- Dane County - west
|U.S. Decennial Census
As of the census of 2010, there were 83,686 people, 32,117 households, and 21,872 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 county's racial makeup 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.
- Fort Atkinson
- Jefferson (county seat)
- Lake Mills
- Watertown (partly in Dodge County)
- Whitewater (mostly in Walworth County)
- Cambridge (mostly in Dane County)
- Johnson Creek
- Lac La Belle (mostly in Waukesha County)
- Blackhawk Island
- Cold Spring
- Glenn Oaks Beach
- Heath Mills
- Hoopers Mill
- Jefferson Junction
- Koshkonong (partial)
- Koshkonong Manor
- Koshkonong Mounds
- Lake Lac La Belle
- London (partial)
- North Shore
- Portland (partial)
- Sylvan Mounds
- Vinnie Ha Ha
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Jefferson County, Wisconsin Facts for Kids. Kiddle Encyclopedia.