Population By Race and Ethnicity in Jefferson County, WI in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 85,091 population of Jefferson County, Wisconsin comprised of 6,172 people who identified as Hispanic (7.25%), and 78,919 people who identified as Non-Hispanic (92.75%).

Race: The White Alone population was the largest racial group in Jefferson County, Wisconsin with a population of 81,839 (96.18%); Two Or More Races population was the second largest racial group with a population of 1,107 (1.3%); and Black or African American Alone was the third largest racial group with a population of 935 (1.1%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Wisconsin in 2018, with a population of 76,188 (89.54%); the second largest ethnic group was White Alone - Hispanic with a population of 5,651 (6.64%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 921 (1.08%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Jefferson, Wisconsin.

You can find similar information for other Wisconsin counties, and for Wisconsin.

See this for other years:
Hispanics and Non Hispanics in Jefferson County, WI in 2018
Total Population:
Race in Jefferson County, WI in 2018
Total Population:
Ethnicity in Jefferson County, WI in 2018
Total Population:
Population By Race in Jefferson , WI in 2018
Race Population Percentage
Black or African American Alone 935 1.1%
White Alone 81,839 96.18%
American Indian and Alaska Native Alone 401 0.47%
Asian Alone 777 0.91%
Native Hawaiian And Pacific Islander Alone 32 0.04%
Two Or More Races 1,107 1.3%
Population By Ethnicity in Jefferson , WI in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 138 0.16%
White Alone - Hispanic 5,651 6.64%
American Indian and Alaska Native Alone - Hispanic 141 0.17%
Asian Alone - Hispanic 41 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 15 0.02%
Two Or More Races - Hispanic 186 0.22%
Black or African American Alone - Non Hispanic 797 0.94%
White Alone - Non Hispanic 76,188 89.54%
American Indian and Alaska Native Alone - Non Hispanic 260 0.31%
Asian Alone - Non Hispanic 736 0.87%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 17 0.02%
Two Or More Races - Non Hispanic 921 1.08%