Hardin was first known as Terry's Landing, after its first settler, Dr. William Terry, according to John Lammy's American Centennial celebration speech in Hardin on July 4, 1876. Landmarks include Hardin Precinct, Calhoun County, Illinois, Hardin Bridge and Calhoun County Courthouse.
- CountyCalhoun County
- Population801 (2020 U.S. Census)


















