Willisville is a village in Perry County, Illinois, United States.

According to the 2010 census, Willisville has a total area of 0.39 square miles (1.01 km2), all land.

There were 295 housing units at an average density of 782.3 per square mile (302.0/km2).

The racial makeup of the village was 99.57% White, 0.14% Native American, and 0.29% from two or more races.

24.8% of all households were made up of individuals, and 13.7% had someone living alone who was 65 years of age or older.