Hisingen is the fourth-largest
island of
Sweden (after
Gotland,
Öland and
Orust), with an area of . In 2014
Statistics Sweden declared it to instead be the fifth largest island, under a definition which adds artificial canals to the possible bodies of water surrounding an island. It has been noted that under this definition, all of
Götaland would be the country's largest island, rendering Hisingen instead the sixth largest. It forms part of
Gothenburg Municipality,
Västra Götaland County, and is bordered by the
Göta älv in the south and east, the
Nordre älv in the north, and the
Kattegat in the west. The northern part of the city of
Gothenburg, with its harbours, industries and suburbs, is located on the island, which is divided between the two historical provinces of
Västergötland and
Bohuslän.