It is bordered on the north by the main channel of the Manning River, on the southwest by Scotts Creek, and on the east by the Pacific Ocean.
Mitchells Island is located at 31°53'60S 152°37'0E and varies its altitude from sea level to 151 m (495 ft).
Mitchells Island largely consists of dense rainforest, home to many native animals including koalas, echidnas, wallabies, possums, bandicoots, quolls, goannas and birds.
There is one village on the island, Manning Point, approximately 330 km (210 mi) north of Sydney.
[2] Besides the holiday rental units, it has a general store, a bowling club, the two caravan parks, a cafe, and a bait shop.