Marathon County Demographics

A map of Marathon County's Population by Race

Marathon County, Wisconsin had a population of 138,013 in 2020. It was 86.1% White, 0.8% Black, 6.1% Asian, 3.2% Hispanic, 0.7% Native American/Other, and 3.1% Multiracial. This map presents the population of Marathon County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Marathon County is the 10th most populous county of the 72 counties in Wisconsin.

Marathon County's White Population

118,783 residents of Marathon County identify as White, or 86.1%. This makes the White share of the population of Marathon County slightly larger than the White share of the population of Wisconsin (78.6% White). Of the 72 counties in Wisconsin, Marathon County is ranked #52 in terms of White residents as a share of the population.

Marathon County is less White than neighboring Lincoln County (94.1% White), Portage County (88.4% White), Wood County (90.4% White), Langlade County (92.1% White), and Taylor County (94% White).

Marathon County's Black Population

1,141 residents of Marathon County identify as Black, or 0.8%. This makes the Black share of the population of Marathon County slightly less than the Black share of the population of Wisconsin (6.2% Black). Of the 72 counties in Wisconsin, Marathon County is ranked #35 in terms of Black residents as a share of the population.

Marathon County is more Black than neighboring Lincoln County (0.5% Black), Wood County (0.7% Black), Langlade County (0.5% Black), and Taylor County (0.3% Black). Marathon County is less Black than neighboring Portage County (1.3% Black).

Marathon County's Asian Population

8,431 residents of Marathon County identify as Asian, or 6.1%. This makes the Asian share of the population of Marathon County roughly similar to the Asian share of the population of Wisconsin (3% Asian). Of the 72 counties in Wisconsin, Marathon County is ranked #2 in terms of Asian residents as a share of the population.

Marathon County is more Asian than neighboring Lincoln County (0.4% Asian), Portage County (3.2% Asian), Wood County (1.9% Asian), Langlade County (0.3% Asian), and Taylor County (0.3% Asian).

Marathon County's Hispanic Population

4,453 residents of Marathon County identify as Hispanic, or 3.2%. This makes the Hispanic share of the population of Marathon County roughly similar to the Hispanic share of the population of Wisconsin (7.6% Hispanic). Of the 72 counties in Wisconsin, Marathon County is ranked #33 in terms of Hispanic residents as a share of the population.

Marathon County is more Hispanic than neighboring Lincoln County (1.9% Hispanic), Langlade County (2.4% Hispanic), and Taylor County (2.8% Hispanic). Marathon County is less Hispanic than neighboring Portage County (3.7% Hispanic).

Marathon County's Native American/Other Population

915 residents of Marathon County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.7%. This makes the Native American/Other share of the population of Marathon County roughly similar to the Native American/Other share of the population of Wisconsin (1.2% Native American/Other). Of the 72 counties in Wisconsin, Marathon County is ranked #42 in terms of Native American/Other residents as a share of the population.

Marathon County is more Native American/Other than neighboring Lincoln County (0.5% Native American/Other), Portage County (0.6% Native American/Other), and Taylor County (0.3% Native American/Other). Marathon County is less Native American/Other than neighboring Wood County (1% Native American/Other), and Langlade County (1.4% Native American/Other).

Marathon County's Multiracial Population

4,290 residents of Marathon County identify as Multiracial, or 3.1%. This makes the Multiracial share of the population of Marathon County roughly similar to the Multiracial share of the population of Wisconsin (3.5% Multiracial). Of the 72 counties in Wisconsin, Marathon County is ranked #30 in terms of Multiracial residents as a share of the population.

Marathon County is more Multiracial than neighboring Lincoln County (2.6% Multiracial), Portage County (2.8% Multiracial), Wood County (2.8% Multiracial), and Taylor County (2.3% Multiracial). Marathon County is less Multiracial than neighboring Langlade County (3.2% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.