Langleyville (also Calloway) is an unincorporated census-designated place in Christian County, Illinois, United States.

According to the 2021 census gazetteer files, Langleyville has a total area of 0.39 square miles (1.01 km2), all land.

There were 163 housing units at an average density of 414.76 per square mile (160.14/km2).

23.04% of all households were made up of individuals, and 23.04% had someone living alone who was 65 years of age or older.

This Christian County, Illinois location article is a stub.