Morgan is a city in Calhoun County, Georgia, United States. The population was 1,741 at the 2020 census. The city is the county seat …Morgan is a city in Calhoun County, Georgia, United States. The population was 1,741 at the 2020 census. The city is the county seat of Calhoun County. Morgan was founded in 1854 as seat of the newly formed Calhoun County. It was incorporated as a city in 1856. The city was named after Hiram Morgan, a county official.