Thorntown is a town in Sugar Creek Township, Boone County, Indiana. The community name was derived from the English translation of the Miami Indian village name, Kawiakiungi (place of thorns), once located here. A post office was estalished at Thorntown in 1830 and Thorntown was platted the following year in 1831.
Thorntown is known for its fall festival "Festival of the Turning Leaves", small town atmosphere, great school system, beautifully expanded library, Sugar Creek Art Center, fine dining, the Big 4 Trail (which the local stretch is know as the Keewaskee Trail), and its rich Indian history.
Town cleanup will take place May 6th and the beautification of main street will take place May 20th.