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| Geography | |
|---|---|
| Location | Hauraki Gulf |
| Coordinates | 36°47′S 175°26′E / 36.783°S 175.433°E |
| Area | 2.83 km2 (1.09 sq mi) |
| Administration | |
New Zealand | |
| Demographics | |
| Population | ? |
Whanganui Island is the largest of a small group of islands at the entrance to Coromandel harbour in the Hauraki Gulf, off the coast of New Zealand's North Island.
The island, which is privately owned, is 2.83 square kilometres (1.09 sq mi) in area. Much of it is farmed, but there are some forested areas.