"Sabula is a city in Jackson County, Iowa, United States. The population was 576 at the 2010 census. Sabula is the site of Iowa's only island city. The island has a beach and a campground. It also has a harbor with boat docks and storage sheds to store some boats during the winter."@en . . . "3.26339e+06"^^ . "1.04e+06"^^ . "1.036e+06"^^ . "555.987"^^ . "2.22739e+06"^^ . "563" . "Sabula, Iowa"@en . "576"^^ . "3.26e+06"^^ . "-5" . "556.0"^^ . "-6" . . "2.23e+06"^^ . "52070" . . "180.137"^^ . "180.0"^^ . . . .