Shannon is a village in Carroll County, Illinois, United States.

[3] According to the 2021 census gazetteer files, Shannon has a total area of 0.48 square miles (1.24 km2), all land.

[4] As of the 2020 census[6] there were 801 people, 326 households, and 212 families residing in the village.

There were 367 housing units at an average density of 761.41 per square mile (293.98/km2).

32.82% of all households were made up of individuals, and 20.55% had someone living alone who was 65 years of age or older.