Marathon County Flag

Marathon County

State:
Wisconsin
County Seat:
Wausau

Marathon County's estimated 2025 population is 139,926 with a growth rate of 0.47% in the past year according to the most recent United States census data. Marathon County is the 10th largest county in Wisconsin. The 2010 population was 134,064 and has seen a growth of 4.37% since that time.

139,926
Total Population
91
Population Density (miĀ²)
10
Population Rank (State)
657 0.47%
Annual Population Growth

Marathon County Population

Marathon County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marathon County includes 87.91% White, 5.52% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White121,37087.91%
Asian7,6195.52%
Two or more races6,0894.41%
Other race2,0341.47%
Black or African American6560.48%
Native American2280.17%
Native Hawaiian or Pacific Islander710.05%

Marathon County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marathon County's average per capita income is $49,335. Household income levels show a median of $76,185. The poverty rate stands at 8.91%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$104,110$124,277
Families$94,793$113,962
Households$76,185$95,540
Non Families$42,261$56,926

$49,335

Average Income

$76,185

Median Household Income

8.91%

Poverty Rate