Acworth is a city in Cobb County, Georgia, United States. As of the 2000 census, the city had a total population of 13,422. Census estimated a 2005 population of 17,428. Nicknamed the “Lake City,” is located in the foothills of the North Georgia Mountains along the southeastern banks of Lake Acworth and Allatoona Lake on the Etowah River. Acworth's nickname is "The Lake City. " Acworth Beach is located on nearby Lake Allatoona and Lake Acworth.