The island lies within Hainggyikyun Subtownship within Ngapudaw Township, Pathein District.

[3] The Pammawaddy Regional Command of the Myanmar Navy is headquartered in Hainggyi Island with its main port in the western part of island, outside the town.

[4] The Khamaukmaw Bridge connects the island to the mainland on the far western end south of the port.

[3] Cyclone Nargis hit landfall on Hainggyi Island in 2008 with sustained winds of 130mph.

[5] Political unrest at the time within Myanmar severely impeded aid and relief efforts.