O'Sullivan Beach, South Australia
O'Sullivan Beach | |||||||||||||
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O'Sullivan Beach Location in greater metropolitan Adelaide | |||||||||||||
| Coordinates: 35°07′08″S 138°28′30″E / 35.119°S 138.475°E | |||||||||||||
| Country | Australia | ||||||||||||
| State | South Australia | ||||||||||||
| Region | Southern Adelaide | ||||||||||||
| City | Adelaide | ||||||||||||
| LGA | |||||||||||||
| Established | 1926 | ||||||||||||
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| • State electorate | |||||||||||||
| Population | |||||||||||||
| • Total | 1,844 (SAL 2021) | ||||||||||||
| Postcode | 5166 | ||||||||||||
| County | Adelaide | ||||||||||||
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| Adjoining suburbs | |||||||||||||
O'Sullivan Beach is a seaside suburb in the southern Adelaide metropolitan area, within the City of Onkaparinga. O'Sullivan Beach has a unique postcode of 5166.