In 2023, Jefferson County, WI had a population of 85.9k people with a median age of 41.3 and a median household income of $80,604. Between 2022 and 2023 the population of Jefferson County, WI declined from 85,932 to 85,867, a −0.0756% decrease and its median household income grew from $77,018 to $80,604, a 4.66% increase.
The 5 largest ethnic groups in Jefferson County, WI are White (Non-Hispanic) (87.5%), Other (Hispanic) (2.75%), Two+ (Hispanic) (2.73%), Two+ (Non-Hispanic) (2.43%), and White (Hispanic) (2.29%).
None of the households in Jefferson County, WI reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
97.7% of the residents in Jefferson County, WI are U.S. citizens.
The largest universities in Jefferson County, WI are Maranatha Baptist University (239 degrees awarded in 2022).
In 2023, the median property value in Jefferson County, WI was $253,800, and the homeownership rate was 72.9%.
Most people in Jefferson County, WI drove alone to work, and the average commute time was 24.9 minutes. The average car ownership in Jefferson County, WI was 2 cars per household.
Jefferson County, WI borders Dane County, WI, Dodge County, WI, Rock County, WI, Walworth County, WI, and Waukesha County, WI.