Population By Race and Ethnicity in Marathon, WI in 2020

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2020, the 138,078 population of Marathon County, Wisconsin comprised of 4,412 people who identified as Hispanic (3.2%), and 133,666 people who identified as Non-Hispanic (96.81%).

Race: The White Alone population was the largest racial group in Marathon County, Wisconsin with a population of 124,724 (90.33%); Asian Alone population was the second largest racial group with a population of 8,707 (6.31%); and Two Or More Races was the third largest racial group with a population of 2,409 (1.75%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Marathon County, Wisconsin in 2020, with a population of 121,051 (87.67%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 8,617 (6.24%); and the third largest ethnic group was White Alone - Hispanic with a population of 3,673 (2.66%).

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

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

See this for other years:
Hispanics and Non Hispanics in Marathon, WI in 2020
Total Population:
Race in Marathon, WI in 2020
Total Population:
Ethnicity in Marathon, WI in 2020
Total Population:
Population By Race in Marathon , WI in 2020
Race Population Percentage
Black or African American Alone 1,342 0.97%
White Alone 124,724 90.33%
American Indian and Alaska Native Alone 830 0.6%
Asian Alone 8,707 6.31%
Native Hawaiian And Pacific Islander Alone 66 0.05%
Two Or More Races 2,409 1.75%
Population By Ethnicity in Marathon , WI in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 125 0.09%
White Alone - Hispanic 3,673 2.66%
American Indian and Alaska Native Alone - Hispanic 213 0.15%
Asian Alone - Hispanic 90 0.07%
Native Hawaiian And Pacific Islander Alone - Hispanic 26 0.02%
Two Or More Races - Hispanic 285 0.21%
Black or African American Alone - Non Hispanic 1,217 0.88%
White Alone - Non Hispanic 121,051 87.67%
American Indian and Alaska Native Alone - Non Hispanic 617 0.45%
Asian Alone - Non Hispanic 8,617 6.24%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 40 0.03%
Two Or More Races - Non Hispanic 2,124 1.54%