The locality is about 13 kilometres (8.1 mi) south-west of the town of Kingston.

The 2016 census recorded a population of 41 for the state suburb of Barretta.

[1] Barretta is part of the Greater Hobart statistical area.

[3] The waters of North-West Bay form most of the eastern boundary.

[4] Route B68 (Channel Highway) runs through from north to south.