Neponset is a village in Bureau County, Illinois, United States.

According to the 2021 census gazetteer files, Neponset has a total area of 1.02 square miles (2.64 km2), all land.

[1] As of the 2020 census[3] there were 427 people, 149 households, and 100 families residing in the village.

There were 193 housing units at an average density of 189.96 per square mile (73.34/km2).

24.83% of all households were made up of individuals, and 15.44% had someone living alone who was 65 years of age or older.