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 November 2025, the estimated population of O'Halloran Hill is around 2,814. This reflects an increase of 92 people since the 2021 Census, which reported a population of 2,722. The latest estimate by AreaSearch, based on examination of ABS ERP data released in June 2024 and additional validated new addresses, is 2,810 residents. This results in a density ratio of approximately 360 persons per square kilometer. O'Halloran Hill's population growth since the Census, at 3.4%, is within 2.0 percentage points of its SA4 region's growth rate of 5.4%. Natural growth contributed about 53.0% to overall population gains in recent periods.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022, and adopts the SA State Government's Regional/LGA projections by age category for areas not covered by this data or years post-2032. Based on these aggregated SA2-level projections, O'Halloran Hill is expected to increase its population by 168 persons to reach approximately 2,982 by 2041, reflecting a total increase of around 6.2% 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, allocated from statistical area data, indicates O'Halloran Hill has received around 8 dwelling approvals per year. Approximately 40 homes were approved between financial years FY-21 and FY-25, with 1 so far in FY-26.

Each new dwelling built over the past five financial years (FY-21 to FY-25) resulted in an average of 2.2 new residents. The average construction cost value for new homes is $406,000.

Recent building activity comprises solely standalone homes, maintaining O'Halloran Hill's low density character and attracting space-seeking buyers. There are estimated to be 562 people per dwelling approval in the area. By 2041, O'Halloran Hill is projected to gain 176 residents based on AreaSearch's latest quarterly estimate. Current development patterns suggest new housing supply will meet demand, offering favorable conditions for buyers and potentially facilitating population growth beyond current projections.

O'Halloran Hill has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified six projects likely to impact the area. Key projects are: 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 most relevant.

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

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AreaSearch analysis reveals O'Halloran Hill significantly outperforming the majority of regions assessed nationwide

O'Halloran Hill has a skilled workforce with notable representation in essential services sectors. The unemployment rate was 2.3% as of June 2025, lower than Greater Adelaide's 4.0%.

Employment growth over the past year was estimated at 2.7%. Workforce participation stood at 65.8%, slightly higher than Greater Adelaide's 61.7%. Key employment industries include health care & social assistance, construction, and retail trade. Construction is particularly strong with an employment share of 1.3 times the regional level, while manufacturing employs only 5.0% of local workers compared to Greater Adelaide's 7.0%.

Many residents commute elsewhere for work based on Census data. In the 12 months prior, employment increased by 2.7%, labour force grew by 3.0%, leading to a slight rise in unemployment rate. Jobs and Skills Australia forecasts national employment growth of 6.6% over five years and 13.9% 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 14.0% over ten years, assuming constant population projections.

The area's income profile falls below national averages based on AreaSearch analysis

O'Halloran Hill had a median taxpayer income of $54,185 and an average income of $62,577 in the financial year 2022, according to postcode level ATO data aggregated by AreaSearch. This was below the national average for that year. Greater Adelaide's median income was $52,592 and its average income was $64,886 during the same period. By September 2025, estimates suggest the median income in O'Halloran Hill would be approximately $61,137 and the average income around $70,606, based on a 12.83% growth in wages since financial year 2022. The Australian Bureau of Statistics' Census data from 2021 ranked household, family, and personal incomes in O'Halloran Hill modestly, between the 38th and 48th percentiles. Most locals (37.4%, or 1,052 people) fell into the $1,500 - $2,999 income category, similar to the regional pattern where 31.8% occupied this range. After housing costs, 85.1% of income remained for other expenses. The area's SEIFA income ranking placed it in the fifth decile.

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

In O'Halloran Hill, as per the latest Census, 91.8% of dwellings were houses with the remaining 8.2% being semi-detached, apartments or other types. In contrast, Adelaide metro had no recorded houses or other dwellings. Home ownership in O'Halloran Hill stood at 33.3%, with mortgaged properties at 48.5% and rented ones at 18.2%. The median monthly mortgage repayment was $1,500, aligning with Adelaide metro's figure, while the median weekly rent was $350. Nationally, O'Halloran Hill's mortgage repayments were 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 making up 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. As of 2021, 23.3% of residents aged 15+ hold university degrees, compared to the Australian average of 30.4%. This gap suggests potential for educational development and skills enhancement. Bachelor degrees are most common at 16.7%, followed by postgraduate qualifications (4.1%) and graduate diplomas (2.5%).

Trade and technical skills are prominent, with 40.0% of residents aged 15+ holding vocational credentials – advanced diplomas (11.4%) and certificates (28.6%). Educational participation is high, with 26.0% of residents currently enrolled in formal education, including 10.3% in primary, 5.7% in secondary, and 4.7% in tertiary education. IQRA College provides local educational services within O'Halloran Hill, enrolling 563 students as of the latest data. The area demonstrates above-average socio-educational conditions (ICSEA: 1068). All 1 schools offer integrated K-12 education, providing continuity throughout students' academic journey. With 20.0 school places per 100 residents, the area shows strong educational infrastructure serving both local and surrounding communities.

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

Transport analysis indicates 31 operational public transport stops in O'Halloran Hill, offering a mix of bus services. These stops are served by 15 distinct routes, collectively facilitating 897 weekly passenger trips. Transport accessibility is rated excellent, with residents typically situated 158 meters from the nearest stop.

Service frequency averages 128 daily trips across all routes, equating to approximately 28 weekly trips per individual 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 approximately 52% of the total population (~1,456 people), slightly lagging behind the average SA2 area. The most common medical conditions in the area are asthma and arthritis, impacting 9.5% and 9.4% of residents respectively. 63.7% of residents declared themselves completely clear of medical ailments compared to 0% across Greater Adelaide. As of 2016, 20.5% of residents were aged 65 and over (576 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 91.0% speaking English only at home. Christianity was the dominant religion at 36.7%.

The 'Other' religious category comprised 1.0%, compared to None% in Greater Adelaide. Top ancestral 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 compared to regional averages.

O'Halloran Hill's median age exceeds the national pattern

The median age in O'Halloran Hill is 40 years, similar to Greater Adelaide's average of 39 but somewhat older than Australia's national average of 38 years. The 75-84 age group constitutes 9.0% of the population, higher than Greater Adelaide's figure, while the 55-64 cohort makes up 10.1%, lower compared to Greater Adelaide. According to data from the 2021 Census, the 75 to 84 age group has increased from 7.0% to 9.0% of the population, and the 15 to 24 cohort has risen from 9.9% to 11.3%. Conversely, the 55 to 64 cohort has decreased from 11.6% to 10.1%. By 2041, population forecasts indicate significant demographic changes for O'Halloran Hill. The 75 to 84 age group is projected to grow by 45%, adding 112 people and reaching a total of 366 from the current figure of 253. Notably, the combined age groups of 65+ will account for 71% of the total population growth, reflecting O'Halloran Hill's aging demographic profile. In contrast, the 35 to 44 and 0 to 4 age cohorts are expected to experience population declines.