Location and coordinates are for the approximate centre of Sunk Island within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Sunk Island, par., East-Riding Yorkshire, on the Humber, 3 miles SW. of Patrington, 6914 ac. (34 water), 7155 tidal water and 3855 foreshore, pop. 419.