It is located about 53 kilometres (33 mi) north of the town of St Helens.

The 2016 census determined a population of nil for the state suburb of Eddystone.

[2] Eddystone Point, the eastern extremity of the locality, supports a lighthouse and is known to Aboriginals as Larapuna.

In 2006 the Tasmanian Government issued a 40-year lease for the Larapuna lands surrounding the lighthouse.

[3] The Tasman Sea forms the north-eastern, eastern and south-eastern boundaries.