Calhoun City is a town in Calhoun County, Mississippi, United States. The population was 1,774 at the 2010 census. Calhoun City is located in south-central Calhoun County., and is bordered on the east by the town of Derma. Mississippi Highway 9 runs through the center of the town, leading north 6 miles to Pittsboro, the county seat, and 10 miles north to Bruc…Calhoun City is a town in Calhoun County, Mississippi, United States. The population was 1,774 at the 2010 census. Calhoun City is located in south-central Calhoun County., and is bordered on the east by the town of Derma. Mississippi Highway 9 runs through the center of the town, leading north 6 miles to Pittsboro, the county seat, and 10 miles north to Bruce. Mississippi Highway 8 leads east from the center of town 8 miles to Vardaman and 18 miles to Houston. The two highways head south from the town together, Highway 9 leading 9 miles south to Slate Springs and Highway 8 leading 31 miles south then west to Grenada.