In 2017, Marathon County, WI had a population of 135k people with a median age of 40.7 and a median household income of $56,509. Between 2016 and 2017 the population of Marathon County, WI declined from 135,367 to 135,293, a -0.0547% decrease and its median household income grew from $54,227 to $56,509, a 4.21% increase.
The 5 largest ethnic groups in Marathon County, WI are White (Non-Hispanic) (89.1%), Asian (Non-Hispanic) (5.68%), White (Hispanic) (2.09%), Two or More Races (Non-Hispanic) (1.5%), and Black or African American (Non-Hispanic) (0.676%). N/A% of the people in Marathon County, WI speak a non-English language, and 98.4% are U.S. citizens.
The median property value in Marathon County, WI is $147,600, and the homeownership rate is 72.8%. Most people in Marathon County, WI commute by Drove Alone, and the average commute time is 18.6 minutes. The average car ownership in Marathon County, WI is 2 cars per household.