O'Halloran Hill
SA 5158 • Greater Adelaide
About O'Halloran Hill
O'Halloran Hill is a southern Adelaide suburb located approximately 18 kilometres from the CBD, nestled along the escarpment that marks the transition between the Adelaide Plains and the Mount Lofty Ranges foothills. With a population of around 2,722 (2021 census), it spans 7.8 square kilometres across the City of Marion and City of Onkaparinga local government areas. The suburb sits at an elevation of about 192 metres, offering pleasant valley views. It has a well-established, predominantly Anglo-Australian demographic with a median age of 40.
O'Halloran Hill offers a quiet suburban lifestyle with generous green space — nearly 30% of the suburb's area is parkland. The nearby Glenthorne National Park (Adelaide's second metropolitan national park) and the Happy Valley Reservoir Reserve provide outstanding nature recreation. The completion of the Darlington Interchange has improved CBD commute times significantly. The suburb attracts families and older owner-occupiers seeking affordability and a semi-rural feel within greater Adelaide.
O'Halloran Hill falls under postcode 5158 and is governed by Marion Council (LGA). For state elections, residents vote in the Davenport electorate.
Location
Transport & Commute
Nearest Train Stations
Bus Services
- 166,167 — Noarlunga Centre interchange 10-15 min
- 164 — Marion Shopping Centre 15-20 min
Commute to Adelaide CBD
🛣️ The Darlington Interchange upgrade has significantly improved peak-hour travel times from the suburb.
Most errands require a car. Local bus connections exist but frequencies are moderate. The suburb's hilly terrain and limited footpaths make walking to amenities challenging.
Supermarkets Nearby
No major supermarkets listed for this suburb.
Schools
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Quailo Avenue
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2-32 Gledsdale Road
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Livonia Street
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21-43 Adams Road
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1 Berrima Road
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Edward Beck Drive
Housing 2021 Census
14 state housing + 0 community housing dwellings (ABS 2021 Census)
Educational Institution Attending 2021 Census
School Sector Breakdown
Demographics
Population Growth
Gender Distribution (Census 2021)
Income Comparison
Country of Birth 2021 Census
Top Countries of Birth (excl. Australia)
- 1. England 203
- 2. New Zealand 28
- 3. Scotland 27
- 4. India 21
- 5. South Africa 20
- 6. Poland 18
- 7. Netherlands 17
- 8. China 16
- 9. Germany 16
- 10. Sri Lanka 15
Ancestry 2021 Census
Top ancestries reported (people may report up to two)