Tennessee is a village in McDonough County, Illinois, United States. The population was 101 at the 2020 census.
U.S. Route 136 westbound approaching the village of Tennessee
McDonough County, Illinois
McDonough County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 27,238. Its county seat is Macomb, which is also the home of Western Illinois University.
McDonough County Courthouse, 2006