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Marion Bay, South Australia facts for kids

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Marion Bay
South Australia
Jetty at Marion Bay
Population 241 (2011 census)
Established 1872
Postcode(s) 5575
Location 151 km (94 mi) SW of Adelaide city centre
LGA(s) Yorke Peninsula Council
State electorate(s) Goyder
Federal Division(s) Grey
Mean max temp Mean min temp Annual rainfall
20.3 °C
69 °F
13.0 °C
55 °F
432.8 mm
17 in
Localities around Marion Bay:
Spencer Gulf White Hut Warooka
Spencer Gulf
Marion Bay Foul Bay
Inneston Investigator Strait Investigator Strait
Footnotes Location
Adjoining localities

Marion Bay is a small township in the Australian state of South Australia at the southern tip of the Yorke Peninsula. At the 2011 census, Marion Bay had a population of 241.


It is surrounded by beaches and is the gateway to the Innes National Park.

Water supply

In 2008, a desalination plant was commissioned to meet the water demands of the summer tourist season. A 60 kL/d sea water reverse osmosis plant now supplies the local caravan park, residents and businesses. The plant was commissioned in response to declining bore water quality and associated problems of corrosion. The plant was designed and constructed by Osmoflo.

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