Johnsonville is a village in Wayne County, Illinois, United States.

According to the 2010 census, Johnsonville has a total area of 0.21 square miles (0.54 km2), all land.

[3] As of the census[5] of 2000, there were 69 people, 25 households, and 20 families residing in the village.

There were 33 housing units at an average density of 155.9 per square mile (60.2/km2).

20.0% of all households were made up of individuals, and 12.0% had someone living alone who was 65 years of age or older.