Jefferson County, WI — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
85,867
Male
43,229
50.3%
Female
42,638
49.7%
Median Age
41.3 yrs
Avg Household Size
2.4
Foreign Born
3.5%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher19.5%
High School or Higher42.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.2%
Disability
0.0%
Non-English Home
4.9%
Married
42.9%
Jefferson County, WI has a population of 85,867 according to 2023 Census Bureau estimates. The median age is 41.3 years. The largest racial or ethnic group is White at 89.8% of the population. 19.5% of residents hold a bachelor's degree or higher. 3.5% of residents are foreign-born.