Hull is a city in Madison County, Georgia, United States. The population was 230 at the 2020 census, up from 198 in 2010. The Georgia Gen…Hull is a city in Madison County, Georgia, United States. The population was 230 at the 2020 census, up from 198 in 2010. The Georgia General Assembly incorporated Hull as a town in 1905. The community most likely was named after Reverend Hope Hull, a Methodist Church leader.