Tremont is a village in Tazewell County, Illinois, United States. The population was 5,500 at the 2010 census. Tremont is part of the Peoria, Illinois Metropolitan Statistical Area. Tremont is located 19 minutes from Peoria. Tremont is a suburb of Peoria,Illinois.
Tremont is located at 40°31′32″N 89°29′26″W / 40.52556°N 89.49056°W / 40.52556; -89.49056 (40.525687, -89.490443).
According to the United States Census Bureau, the village has a total area of 0.9 square miles (2.5 km²), all of it land.