O'Sullivan Beach, South Australia — interactive Google street map, satellite and terrain views, Street View, live local weather conditions and 7-day forecasts, real-time local and world news, and an editorial description of O'Sullivan Beach, in the City Of Onkaparinga local government area.
| Locality | O'Sullivan Beach |
| State | South Australia (SA) |
| Local Government Area | City Of Onkaparinga |
| Country | Australia |
| Timezone | Australian Central Time (ACST/ACDT) |
| Remoteness | Major Cities of Australia |
| Latitude | -35.12199 |
| Longitude | 138.47634 |
| Population | 1,816 |
| Density | 966.0 /km² |
| Area | 1.9 km² |
| Elevation | 51 m |
| Postcode | 5166 |
| Area Code | 08 |
| Distance to Adelaide | 24 km south-southwest |
O'Sullivan Beach is a locality in the City Of Onkaparinga local government area of South Australia, Australia. It has a population of approximately 1,816. The locality covers an area of 1.9 km², giving a population density of about 966.0 people per km². It sits at an elevation of around 51 m above sea level. It lies approximately 24 km south-southwest of Adelaide. O'Sullivan Beach is located at 35.1220°S, 138.4763°E. It observes Australian Central Time (ACST/ACDT). Postcode: 5166.
O'Sullivan Beach unfurls along the gentle curve of the Gulf St Vincent, a coastal fringe where the sea breeze carries the faint, briny scent of receding tides. It lies 4.7 km west of Morphett Vale, SA (from Morphett Vale, SA: bearing 268°T), and is situated 6.0 km south-south-west of Hallett Cove. The sand, a pale, sun-bleached gold, stretches in a broad, inviting sweep, meeting a sea that can range from a placid, shimmering turquoise to a restless, slate-grey depending on the mood of the southern ocean. Low-lying dunes, tufted with hardy coastal grasses and the occasional hardy shrub, form a natural boundary, their sandy contours whispering of wind and water. Inland, the landscape transitions subtly to flatter terrain, dotted with suburban developments that gradually give way to more open spaces, hinting at the agricultural lands that lie further afield. The quality of light here, particularly as the afternoon wanes, paints the sky in hues of soft rose and lavender, reflecting briefly on the wet sand left by the retreating waves.
Historically, the lands surrounding O'Sullivan Beach were part of a broader agricultural and pastoral region, their development shaped by the proximity to the coast and the fertile soils of the Adelaide Plains. The local economy has always been intrinsically linked to the sea, with fishing a traditional pursuit that continues to hold a place in the community's identity, though its scale has shifted over time. More recently, O'Sullivan Beach has become a popular residential enclave within the City of Onkaparinga, attracting families and retirees drawn by its coastal lifestyle and the relative affordability compared to more established seaside suburbs. While it doesn't boast grand historical landmarks, its character lies in the everyday rhythm of beachside living – the early morning dog walkers, the weekend surfers testing the waves, and the quiet hum of suburban life against the enduring backdrop of the ocean.
Loading news…
Loading news-world…
Loading news-world…
This page provides an interactive Google map of O'Sullivan Beach, South Australia with street, satellite and terrain views and integrated Street View imagery. Live weather conditions with current observations and a 7-day forecast are powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while an editorially written description provides background on O'Sullivan Beach, in the City Of Onkaparinga local government area.
Detailed location data for O'Sullivan Beach includes the postcode (5166), telephone area code (08), and local government area (City Of Onkaparinga), with an ABS remoteness classification of Major Cities of Australia. These are among the most commonly searched location details for any Australian city, town or locality.
Location data is drawn from Geoscape Administrative Boundaries (GDA2020) and enriched with GeoNames and Australian Bureau of Statistics data, matched by coordinate proximity — ensuring the correct O'Sullivan Beach is identified even where the name is shared across multiple localities.
| Page generated | June 2026 |
| Location data | Geoscape Administrative Boundaries (GDA2020); enriched with GeoNames and ABS 2021 Census data, matched by coordinate proximity |
| Description | Editorial description generated with AI assistance from verified Geoscape, ABS and GeoNames location data. |