. . "-6" . "1.44729e+07"^^ . "0.0"^^ . . "615" . "Shackle Island is a census-designated place and unincorporated community in Sumner County, Tennessee, United States. Its population was 2,844 as of the 2010 census."@en . "-5" . "1.44729e+07"^^ . "157.886"^^ . . . "Shackle Island, Tennessee"@en . "2844"^^ .