About Chestnut, Illinois
Coordinates: 40°03?13?N 89°11?07?W? / ?40.05361°N 89.18528°W? / 40.05361; -89.18528Chestnut is a census-designated place in Aetna Township, Logan County, Illinois. As of the 2010 census, its population was 246. Its claim to fame is that it is the geographic center of the state. . The community is located along Illinois Route 54.