Cairns Bay is a rural locality in the local government area (LGA) of Huon Valley in the South-east LGA region of Tasmania. The locality is about south-west of the town of Huonville. The 2016 census recorded a population of 76 for the state suburb of Cairns Bay.
History Cairns Bay was gazetted as a locality in 1965.
Geography The waters of the Huon River estuary form the eastern boundary.
Road infrastructure Route C634 (Scotts Road) runs through from north-west to south.
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