In 2017, Mendon, IL had a population of 843 people with a median age of 44.4 and a median household income of $54,531. Between 2016 and 2017 the population of Mendon, IL declined from 935 to 843, a -9.84% decrease and its median household income grew from $53,971 to $54,531, a 1.04% increase.
The population of Mendon, IL is 99.6% White Alone, 0.356% Black or African American Alone, and 0% Two or More Races. 0.578% of the people in Mendon, IL speak a non-English language, and 100% are U.S. citizens.
The median property value in Mendon, IL is $87,400, and the homeownership rate is 81.5%. Most people in Mendon, IL commute by Drove Alone, and the average commute time is 23.3 minutes. The average car ownership in Mendon, IL is 2 cars per household.