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O'Halloran Hill Postcode
South Australia
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How O'Halloran Hill Compares
O'Halloran Hill vs the SA average and the national average (2021 Census, population-weighted).
| Metric | O'Halloran Hill | SA avg | AU avg | Greater Adelaide |
|---|---|---|---|---|
| Household income/wk | $1,558 ≈SA | $1,545 | $1,836 | $1,620 |
| Rent/wk | $350 +SA | $308 | $390 | $329 |
| Mortgage/month | $1,500 ≈SA | $1,558 | $1,958 | $1,666 |
| Median age | 40 | 45.0 | 45.0 | 42.0 |
| SEIFA decile | 6/10 ≈SA | 5.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 4.5% -SA | 6.0% | 5.0% | 6.0% |
Green pill = at least 10% above the SA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Postcode 5158 covers O'Halloran Hill, an inland suburb of Adelaide about 16 km from the city centre. It forms part of the Adelaide - South region of South Australia. Local government services are provided by Onkaparinga.
According to the 2021 Census, O'Halloran Hill has a population of 2,722 with a median age of 40. The median weekly household income is $1,558, close to the SA average. The unemployment rate is 4.5%, lower than the SA average. The Indigenous population is 35 (1.3% of residents).
Housing in O'Halloran Hill includes a median weekly rent of $350, median monthly mortgage repayment of $1,500, with 1,095 total dwellings. These housing costs sit above the SA average. Owner-occupied dwellings (owned or mortgaged) make up 81.8% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, O'Halloran Hill scores in decile 6 out of 10, which is around the national average.
O'Halloran Hill is served by IQRA College.
O'Halloran Hill is part of the Onkaparinga statistical area in South Australia.
O'Halloran Hill Details
| Postcode | 5158 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 2,722 |
| Median Age | 40 years |
| Median Household Income (Census 2021) | $1,558/week |
| Median Personal Income (Census 2021) | $796/week |
| Median Weekly Rent (Census 2021) | $350 |
| Median Monthly Mortgage (Census 2021) | $1,500 |
| Average Household Size | 2.5 persons |
| Area | 7.8 km² |
| Population Density | 348/km² |
| Total Dwellings | 1,095 |
| Australian Citizens | 92.0% |
| Indigenous Population | 35 (1.3%) |
| Unemployment Rate | 4.5% |
| SEIFA IRSAD Decile | 6/10 (average) |
| Latitude | -35.064 |
| Longitude | 138.553 |
| Distance from Adelaide | 16 km |
| Region (SA4) | Adelaide - South |
| Area (SA3) | Onkaparinga |
| Local Government | Onkaparinga |
| Federal Electorate | Kingston |
Age Profile
Show counts
| 0–14 years | 491 (18.0%) |
| 15–24 years | 269 (9.9%) |
| 25–44 years | 802 (29.5%) |
| 45–64 years | 649 (23.8%) |
| 65+ years | 512 (18.8%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 6 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 304 (11.2%) |
| Arthritis | 301 (11.1%) |
| Diabetes | 159 (5.8%) |
| Heart Disease | 134 (4.9%) |
| Cancer | 92 (3.4%) |
| Lung Condition | 54 (2.0%) |
| Dementia | 7 (0.3%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 33 (3.0%) |
| 1 vehicle | 357 (32.7%) |
| 2 vehicles | 470 (43.1%) |
| 3+ vehicles | 231 (21.2%) |
Schools in O'Halloran Hill
Suburbs Near O'Halloran Hill
Same Postcode (5158)
More O'Halloran Hill Data
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.