In 2023, Johnsonville, IL had a population of 37 people with a median age of 34.2 and a median household income of $36,250. Between 2022 and 2023 the population of Johnsonville, IL declined from 50 to 37, a −26% decrease and its median household income declined from $43,750 to $36,250, a −17.1% decrease.
The 5 largest ethnic groups in Johnsonville, IL are White (Non-Hispanic) (94.6%), Two Races Including Other (Non-Hispanic) (2.7%), Two Races Excluding Other, & Three or More Races (Non-Hispanic) (2.7%), Black or African American (Non-Hispanic) (0%), and American Indian & Alaska Native (Non-Hispanic) (0%).
None of the households in Johnsonville, 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 Johnsonville, IL are U.S. citizens.