Lilly is a city in Dooly County, Georgia, United States. The population was 213 at the 2010 census. Lilly was originally named "Midway", as it was the halfway point between Cordele and Montezuma. The …Lilly is a city in Dooly County, Georgia, United States. The population was 213 at the 2010 census. Lilly was originally named "Midway", as it was the halfway point between Cordele and Montezuma. The name was changed upon the discovery that there already was another Midway in the state. The name "Lilly" is a reference to patriarchs of the town. The mayor of Lilly is also the uncle of world renowned software engineer, Adam Roney.