Aldinga
Statistical Area - sa2

Aldinga has seen population growth performance typically on par with national averages when looking at short and medium term trends

Aldinga's population was around 16,892 as of November 2025. This showed an increase of 969 people from the 2021 Census figure of 15,923, reflecting a growth rate of 6.1%. The change was inferred from ABS data showing an estimated resident population of 16,787 in June 2024 and an additional 214 validated new addresses since the Census date. This resulted in a population density ratio of 478 persons per square kilometer. Aldinga's growth rate exceeded that of its SA3 area (4.9%) and SA4 region, indicating it as a growth leader. Overseas migration contributed approximately 50.1% to overall population gains recently, with all drivers being positive factors.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections are used, adjusted employing weighted aggregation methods. Based on current demographic trends, Aldinga is expected to grow by around 1,417 persons to reach a population of approximately 18,309 by 2041, marking an increase of about 7.7% over the 17-year period.

AreaSearch assessment of residential development activity positions Aldinga among the top 25% of areas assessed nationwide

Aldinga has seen approximately 122 new homes approved each year over the past five financial years, totalling 613 homes. As of FY-26, 41 approvals have been recorded. The average number of new residents per year per dwelling constructed in Aldinga between FY-21 and FY-25 is 1.3. This indicates a balanced supply and demand market, supporting stable conditions.

The average construction cost value of new homes being built in Aldinga is $319,000. In the current financial year, there have been $121.8 million in commercial approvals, reflecting strong commercial development momentum. Compared to Greater Adelaide, Aldinga has 54.0% higher new home approvals per person, offering greater choice for buyers. New development consists of 86.0% standalone homes and 14.0% attached dwellings, maintaining the area's traditional low density character with a focus on family homes.

Aldinga reflects a low density area, with around 138 people per approval. Population forecasts indicate Aldinga will gain 1,302 residents by 2041. With current construction levels, housing supply should adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Aldinga has emerging levels of nearby infrastructure activity, ranking in the 30thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified 13 projects that may affect this region. Notable projects include Aldinga Master Planned Community by Villawood Properties, Aldinga Sports Park Master Plan Redevelopment, Main South Road Duplication Project (Stage 2) from Aldinga to Sellicks Beach, and Aldinga - A New Community. The following list provides details on those most relevant.

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

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Aldinga shows employment indicators that trail behind approximately 70% of regions assessed across Australia

Aldinga has a skilled workforce with 5.3% unemployment as of June 2025. This is 1.3% higher than Greater Adelaide's rate of 4%.

The area had an estimated employment growth of 2.9% over the past year. As of June 2025, 8,223 residents are employed, with a workforce participation rate of 59.1%, compared to Greater Adelaide's 61.7%. Key industries include health care & social assistance, construction, and retail trade. Construction is particularly specialized, employing 1.5 times the regional average.

Professional & technical services employ only 4.2% of local workers, below Greater Adelaide's 7.3%. Employment increased by 2.9% over the year to June 2025, while labour force grew by 2.7%, reducing unemployment by 0.2 percentage points. National employment forecasts from Jobs and Skills Australia (May 2025) project a 6.6% growth over five years and 13.7% over ten years. Applying these projections to Aldinga's employment mix suggests local growth of approximately 6.3% over five years and 13.3% over ten years.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

AreaSearch's data for financial year 2022 shows Aldinga's median income was $46,734 and average income was $54,294. This is lower than the national averages of $52,592 (median) and $64,886 (average). In Greater Adelaide, median income was $52,592 and average income was $64,886. Based on a 12.83% increase since financial year 2022, estimated incomes for September 2025 would be approximately $52,730 (median) and $61,260 (average). Census 2021 data shows Aldinga's household, family, and personal incomes rank between the 21st and 23rd percentiles nationally. Income distribution in Aldinga is dominated by the $1,500 - 2,999 bracket, with 31.4% of residents (5,304 people). This aligns with the surrounding region, where this cohort also represents 31.8%. Housing affordability pressures are severe in Aldinga, with only 82.8% of income remaining, ranking at the 21st percentile nationally.

Aldinga is characterized by a predominantly suburban housing profile, with a higher proportion of rental properties than the broader region

In Aldinga, as per the latest Census evaluation, 91.4% of dwellings were houses, with the remaining 8.6% being semi-detached homes, apartments, or other types of dwellings. In comparison, Adelaide metro had 89.2% houses and 10.7% other dwellings. Home ownership in Aldinga stood at 29.8%, with mortgaged properties making up 44.7% and rented dwellings accounting for 25.6%. The median monthly mortgage repayment in the area was $1,400, lower than Adelaide metro's average of $1,452. The median weekly rent in Aldinga was recorded at $320, compared to $314 in Adelaide metro. Nationally, Aldinga's median monthly mortgage repayments were significantly lower than the Australian average of $1,863, and rents were substantially below the national figure of $375.

Aldinga has a typical household mix, with a fairly typical median household size

Family households constitute 70.7% of all households, including 27.8% couples with children, 26.8% couples without children, and 15.4% single parent families. Non-family households account for the remaining 29.3%, with lone person households at 26.5% and group households comprising 2.7% of the total. The median household size is 2.5 people, which aligns with the Greater Adelaide average.

Educational outcomes in Aldinga fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area's university qualification rate is 17.3%, significantly lower than the Australian average of 30.4%. Bachelor degrees are most common at 12.0%, followed by postgraduate qualifications (3.1%) and graduate diplomas (2.2%). Vocational credentials are prevalent, with 43.4% of residents aged 15+ holding them, including advanced diplomas (10.6%) and certificates (32.8%). Educational participation is high at 29.2%, comprising primary education (12.4%), secondary education (7.7%), and tertiary education (3.4%).

Aldinga has 4 schools with a combined enrollment of 1,202 students, operating under typical Australian school conditions (ICSEA: 961). The educational mix includes 1 primary school and 3 K-12 schools. School places per 100 residents are 7.1, below the regional average of 13.6, indicating some students may attend schools in nearby areas. Note that where schools show 'n/a' for enrolments, please refer to the parent campus.

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

Aldinga has 115 active public transport stops, all of which are bus stops. These stops are served by 11 different routes that together facilitate 621 weekly passenger trips. The average distance from a resident's location to the nearest transport stop is 199 meters.

On average, there are 88 trips per day across all routes, resulting in approximately 5 weekly trips per individual stop.

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

Aldinga faces significant health challenges. Common health conditions are somewhat prevalent across both younger and older age cohorts.

The rate of private health cover is very low at approximately 47% of the total population (~7,973 people), compared to the national average of 55.3%. The most common medical conditions in the area are mental health issues and arthritis, impacting 10.2 and 9.5% of residents respectively. Meanwhile, 64.1% of residents declare themselves completely clear of medical ailments, compared to 62.9% across Greater Adelaide. The area has 20.0% of residents aged 65 and over (3,381 people). Health outcomes among seniors present some challenges, broadly in line with the general population's health profile.

Aldinga ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Aldinga's cultural diversity was found to be below average, with 79.4% of its population born in Australia, 89.8% being citizens, and 95.9% speaking English only at home. Christianity is the predominant religion in Aldinga, comprising 31.1% of the population. The most notable overrepresentation was seen in the 'Other' category, which constitutes 0.5% of Aldinga's population compared to 0.7% across Greater Adelaide.

In terms of ancestry, the top three groups in Aldinga are English (37.5%), Australian (27.6%), and Scottish (7.8%). There are also notable differences in the representation of certain ethnic groups: German is overrepresented at 5.1% compared to 5.4% regionally, Dutch remains unchanged at 1.7%, while Welsh shows a slight decrease from 0.8% regionally to 0.7%.

Aldinga's population is slightly older than the national pattern

The median age in Aldinga is 40 years, similar to Greater Adelaide's average of 39 years, but somewhat older than Australia's median age of 38 years. The proportion of people aged 5-14 years is strong at 13.3%, compared to Greater Adelaide's figure. However, the percentage of those aged 25-34 years is lower in Aldinga at 10.9%. According to post-2021 Census data, the proportion of people aged 75-84 years has increased from 5.6% to 7.0%, while the 5-14 age group has decreased from 14.5% to 13.3%. Population forecasts for the year 2041 suggest significant demographic changes in Aldinga. The 85+ age group is projected to grow by 147%, reaching 826 people from 334, leading this demographic shift. Notably, combined age groups of 65 and above will account for 75% of total population growth, reflecting the area's aging demographic trend. Conversely, the 0-4 and 35-44 age cohorts are expected to experience population declines.