In 2017, Green Lake County, WI had a population of 18.7k people with a median age of 45.5 and a median household income of $50,276. Between 2016 and 2017 the population of Green Lake County, WI declined from 18,881 to 18,745, a -0.72% decrease and its median household income grew from $47,174 to $50,276, a 6.58% increase.
The 5 largest ethnic groups in Green Lake County, WI are White (Non-Hispanic) (92.9%), White (Hispanic) (3.18%), Some Other Race (Hispanic) (1.22%), Two or More Races (Non-Hispanic) (1.11%), and Black or African American (Non-Hispanic) (0.64%). N/A% of the people in Green Lake County, WI speak a non-English language, and 97.9% are U.S. citizens.
The median property value in Green Lake County, WI is $139,300, and the homeownership rate is 74.2%. Most people in Green Lake County, WI commute by Drove Alone, and the average commute time is 23.3 minutes. The average car ownership in Green Lake County, WI is 2 cars per household.