In 2023, Mendon, IL had a population of 1.13k people with a median age of 37.2 and a median household income of $62,778. Between 2022 and 2023 the population of Mendon, IL stayed from 1,131 to 1,131, a 0% change and its median household income declined from $65,875 to $62,778, a −4.7% decrease.
The 5 largest ethnic groups in Mendon, IL are White (Non-Hispanic) (98%), Other (Hispanic) (1.06%), Two+ (Non-Hispanic) (0.973%), White (Hispanic) (0%), and Black or African American (Non-Hispanic) (0%).
None of the households in Mendon, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Mendon, IL are U.S. citizens.
In 2023, the median property value in Mendon, IL was $108,500, and the homeownership rate was 77.5%.