O'Halloran Hill

An assessment of population growth drivers in O'Halloran Hill reveals an overall ranking slightly below national averages considering recent, and medium term trends

As of Nov 2025, the population of the O'Halloran Hill statistical area (Lv2) is estimated at around 2,835. This reflects an increase of 113 people since the 2021 Census, which reported a population of 2,722. The change was inferred from AreaSearch's estimate of 2,828 residents following examination of ABS ERP data released in June 2024, along with validation of four new addresses since the Census date. This results in a population density ratio of 363 persons per square kilometer. Natural growth contributed approximately 53.0% of overall population gains during recent periods.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered and years post-2032, the SA State Government's Regional/LGA projections by age category are adopted, based on 2021 data and released in 2023. Based on aggregated SA2-level projections, the O'Halloran Hill (SA2) is expected to increase by 166 persons to reach a total of 3,001 by 2041. This reflects an overall increase of approximately 5.4% over the 17-year period.

Residential development activity is lower than average in O'Halloran Hill according to AreaSearch's national comparison of local real estate markets

AreaSearch analysis of ABS building approval numbers indicates that O'Halloran Hill has experienced approximately 8 dwelling approvals per year. Over the past five financial years, from FY-21 to FY-25, around 41 homes were approved, with an additional 1 approval in FY-26. Each new dwelling is estimated to bring about 2.2 new residents annually on average over these five years.

The average construction cost value of new homes is approximately $402,000, suggesting developers are targeting the premium market segment. This financial year has seen around $695,000 in commercial approvals, reflecting the area's residential nature.

All approved constructions have been standalone homes, maintaining O'Halloran Hill's traditional low-density character with a focus on family homes. The area currently reflects a density of approximately 256 people per approval. Future projections estimate an increase of 153 residents by 2041, based on the latest AreaSearch quarterly estimate. At current development rates, new housing supply should comfortably meet demand, providing favorable conditions for buyers and potentially supporting population growth beyond current projections.

O'Halloran Hill has limited levels of nearby infrastructure activity, ranking in the 17thth percentile nationally

The performance of an area can significantly be influenced by changes in local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 6 projects that are likely to impact the area. Notable projects include the Happy Valley Reservoir Reserve Access Project, Zero Cost Energy Future - Happy Valley Reservoir Solar Project, Happy Valley Drive Intersections Planning Study, and Southern Expressway Duplication. The following list details those projects that are most relevant.

Professional plan users can use the search below to filter and access additional projects.

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The labour market strength in O'Halloran Hill positions it well ahead of most Australian regions

O'Halloran Hill has a skilled workforce with essential services sectors well represented. Its unemployment rate was 2.3% in the past year, with an estimated employment growth of 3.7%.

As of September 2025, 1,600 residents are employed, with an unemployment rate of 1.6% below Greater Adelaide's rate of 3.9%. Workforce participation is 65.8%, compared to Greater Adelaide's 61.7%. The dominant employment sectors include health care & social assistance, construction, and retail trade. Construction has notably high concentration, with levels at 1.3 times the regional average.

Manufacturing is under-represented, at 5.0% of O'Halloran Hill's workforce compared to Greater Adelaide's 7.0%. Many residents commute elsewhere for work based on Census data. Between September 2024 and September 2025, employment levels increased by 3.7%, with labour force also increasing by 3.7% and unemployment remaining unchanged. In contrast, Greater Adelaide saw employment rise by 3.0%, labour force grow by 2.9%, and unemployment fall by 0.1 percentage points. State-level data to 25-Nov-25 shows SA employment grew by 1.19% year-on-year, with a state unemployment rate of 4.0%. National employment forecasts from May-25 project national growth of 6.6% over five years and 13.7% over ten years. Applying these projections to O'Halloran Hill's employment mix suggests local employment should increase by 6.7% over five years and 13.9% over ten years, though this is a simple weighting extrapolation for illustrative purposes and does not account for localised population projections.

Income levels sit below national averages according to AreaSearch assessment

The suburb of O'Halloran Hill has a median taxpayer income of $54,181 and an average income of $62,571 based on the latest postcode level ATO data aggregated by AreaSearch for the financial year 2023. This is lower than the national average, with Greater Adelaide having a median income of $54,808 and an average income of $66,852. Using the Wage Price Index growth rate of 8.8% since the financial year 2023, estimated incomes for September 2025 would be approximately $58,949 (median) and $68,077 (average). According to Census 2021 income data, household, family, and personal incomes in O'Halloran Hill rank modestly, between the 38th and 48th percentiles. The earnings profile shows that 37.4% of residents earn between $1,500 and $2,999 weekly (1,060 residents), which is similar to regional levels where this cohort represents 31.8%. After housing costs, 85.1% of income remains for other expenses. The area's SEIFA income ranking places it in the 5th decile.

O'Halloran Hill is characterized by a predominantly suburban housing profile, with strong rates of outright home ownership

Dwelling structure in O'Halloran Hill, as per the latest Census, consisted of 91.8% houses and 8.2% other dwellings. Home ownership stood at 33.3%, with 48.5% of dwellings mortgaged and 18.2% rented. The median monthly mortgage repayment was $1,500, and the median weekly rent was $350. Nationally, O'Halloran Hill's mortgage repayments were significantly lower than the Australian average of $1,863, and rents were less than the national figure of $375.

O'Halloran Hill has a typical household mix, with a median household size of 2.5 people

Family households account for 74.1% of all households, including 31.5% couples with children, 28.9% couples without children, and 13.0% single parent families. Non-family households constitute the remaining 25.9%, with lone person households at 23.2% and group households comprising 2.5%. The median household size is 2.5 people.

The educational profile of O'Halloran Hill exceeds national averages, with above-average qualification levels and academic performance metrics

Educational qualifications in O'Halloran Hill trail regional benchmarks, with 23.3% of residents aged 15+ holding university degrees compared to 30.4% in Australia. Bachelor degrees are the most common at 16.7%, followed by postgraduate qualifications at 4.1% and graduate diplomas at 2.5%. Trade and technical skills are prominent, with 40.0% of residents aged 15+ holding vocational credentials – advanced diplomas at 11.4% and certificates at 28.6%. Educational participation is high, with 26.0% of residents currently enrolled in formal education.

This includes 10.3% in primary education, 5.7% in secondary education, and 4.7% pursuing tertiary education.

Transport servicing is good compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Transport analysis indicates 31 active transport stops in O'Halloran Hill, offering a mix of bus services. These stops are served by 15 individual routes, collectively facilitating 896 weekly passenger trips. Transport accessibility is rated excellent, with residents typically situated 158 meters from the nearest stop.

Service frequency averages 128 trips per day across all routes, equating to approximately 28 weekly trips per stop.

Health performance in O'Halloran Hill is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

O'Halloran Hill faces significant health challenges with common health conditions prevalent across both younger and older age cohorts.

The rate of private health cover is relatively low at approximately 52% of the total population, which consists of around 1,466 people. The most common medical conditions in the area are asthma and arthritis, impacting 9.5% and 9.4% of residents respectively. A total of 63.7% of residents declared themselves completely clear of medical ailments, compared to 0% across Greater Adelaide. As of a recent study conducted on 20th June 2018, approximately 20.6% of residents are aged 65 and over, numbering around 584 people. Health outcomes among seniors present some challenges, broadly in line with the general population's health profile.

In terms of cultural diversity, O'Halloran Hill records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics

O'Halloran Hill's population, born in Australia, was 79.4%. Citizenship stood at 92.0%, with English spoken exclusively at home by 91.0%. Christianity was the dominant religion, comprising 36.7%.

The 'Other' religious category was overrepresented at 1.0% compared to none across Greater Adelaide. In terms of ancestry, the top groups were English (35.7%), Australian (23.0%), and Scottish (8.2%). Notably, Welsh (0.9%), Polish (1.1%), and German (6.2%) ethnicities were overrepresented in O'Halloran Hill compared to regional averages.

O'Halloran Hill's population is slightly older than the national pattern

The median age in O'Halloran Hill is 40 years, similar to Greater Adelaide's average of 39 years, but somewhat older than Australia's median age of 38 years. The 75-84 age group constitutes 9.0% of the population in O'Halloran Hill, higher than Greater Adelaide's percentage. Conversely, the 55-64 cohort makes up 10.1%, lower than Greater Adelaide's figure. According to post-2021 Census data, the 75-84 age group has increased from 7.0% to 9.0% of the population, while the 15-24 cohort has risen from 9.9% to 11.2%. Meanwhile, the 55-64 cohort has decreased from 11.6% to 10.1%. Population forecasts for 2041 indicate significant demographic changes in O'Halloran Hill, with the 75-84 age group projected to grow by 43%, adding 110 people and reaching a total of 366 from 255. Notably, the combined age groups of 65+ will account for 72% of the total population growth, reflecting O'Halloran Hill's aging demographic trend. In contrast, the 35-44 and 0-4 age cohorts are expected to experience population declines.