Aldinga

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

Aldinga's population, as per AreaSearch's analysis, stood at 16,892 by November 2025. This figure represents an increase of 969 people since the 2021 Census, which reported a population of 15,923. The growth is inferred from ABS' estimated resident population of 16,787 in June 2024 and an additional 214 validated new addresses post-Census date. This results in a density ratio of 478 persons per square kilometer. Aldinga's 6.1% growth since the 2021 census surpassed both SA3 area (4.9%) and SA4 region, indicating it as a regional growth leader. Overseas migration contributed approximately 50.1% to overall population gains recently, with other factors like natural growth and interstate migration also positive.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 using 2022 as the base year. For areas not covered by this data and years post-2032, SA State Government's Regional/LGA projections are adopted with adjustments made via weighted aggregation of population growth from LGA to SA2 levels. Looking ahead, demographic trends suggest a population increase just below the median for national statistical areas by 2041, with Aldinga expected to grow by 1,417 persons, reflecting a total gain of 7.7% over the 17 years based on latest annual ERP population numbers.

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. By the end of FY-26, 54 approvals have been recorded. On average, 1.3 new residents per year per dwelling constructed were recorded between FY-21 and FY-25. This indicates a balanced supply and demand market, supporting stable conditions.

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

With around 138 people per approval, Aldinga reflects a low density area. According to AreaSearch's latest quarterly estimate, Aldinga is forecasted to gain 1,302 residents by 2041. Given current construction levels, housing supply should adequately meet demand, creating favourable conditions for buyers and potentially enabling growth that exceeds current forecasts.

Aldinga has limited levels of nearby infrastructure activity, ranking in the 19thth percentile nationally

Infrastructure changes significantly impact an area's performance. AreaSearch identified 13 projects likely affecting the region. Notable ones are 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 details those most relevant.

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

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

Employment conditions in Aldinga remain below the national average according to AreaSearch analysis

Aldinga has a skilled workforce with notable representation in essential services sectors. The unemployment rate was 4.8% in September 2025, with an estimated employment growth of 4.4% over the past year.

As of this date, 8,463 residents were employed while the unemployment rate was 0.8% higher than Greater Adelaide's rate of 3.9%. Workforce participation stood at 59.1%, below Greater Adelaide's 61.7%. Key industries for employment among residents are health care & social assistance, construction, and retail trade. Aldinga has a particular employment specialization in construction, with an employment share of 1.5 times the regional level.

In contrast, professional & technical services employ only 4.2% of local workers, compared to Greater Adelaide's 7.3%. The area appears to offer limited local employment opportunities, as indicated by the count of Census working population versus resident population. Over the 12 months to September 2025, employment increased by 4.4%, while labour force grew by 3.7%, leading to a 0.7 percentage point decrease in unemployment rate. In comparison, Greater Adelaide saw employment grow by 3.0% and labour force expand by 2.9%, with unemployment falling by 0.1 percentage points. State-level data from 25-Nov shows SA employment grew by 1.19% year-on-year, adding 10,710 jobs, with the state unemployment rate at 4.0%. This compares favourably to the national unemployment rate of 4.3%, where the state's employment growth outpaced the national average of 0.14%. National employment forecasts from Jobs and Skills Australia project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Aldinga's employment mix suggests local employment should increase by 6.3% over five years and 13.3% over ten years, based on simple weighting extrapolation for illustrative purposes only.

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

AreaSearch's latest postcode level ATO data for financial year 2022 shows that Aldinga SA2 has lower income compared to national averages. The median income is $46,734 and the average income is $54,294. In contrast, Greater Adelaide has a median income of $52,592 and an average income of $64,886. Based on Wage Price Index growth of 12.83% since financial year 2022, estimated incomes as of September 2025 would be approximately $52,730 (median) and $61,260 (average). Census 2021 income data indicates that Aldinga's household, family, and personal incomes all fall between the 21st and 23rd percentiles nationally. Income distribution shows that the $1,500 - 2,999 bracket dominates with 31.4% of residents (5,304 people), similar to the surrounding region at 31.8%. Housing affordability pressures are severe in Aldinga, with only 82.8% of income remaining, ranking at the 20th percentile nationally.

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

Aldinga's dwelling structure, as per the latest Census, had 91.4% houses and 8.6% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Adelaide metro's 89.2% houses and 10.7% other dwellings. Home ownership in Aldinga was at 29.8%, with the rest either mortgaged (44.7%) or rented (25.6%). The median monthly mortgage repayment was $1,400, lower than Adelaide metro's $1,452. Median weekly rent was $320, compared to Adelaide metro's $314. Nationally, Aldinga's mortgage repayments were significantly lower at $1,400 versus 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 account for 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 make up the remaining 29.3%, with lone person households at 26.5% and group households comprising 2.7%. 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%. This disparity presents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are the 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, with 29.2% of residents currently enrolled in formal education. This includes 12.4% in primary education, 7.7% in secondary education, and 3.4% pursuing tertiary education.

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

The public transport analysis indicates that Aldinga has 115 active transport stops, all of which are bus stops. These stops are served by 11 different routes, offering a total of 621 weekly passenger trips. The accessibility to transport is rated as excellent, with residents being an average of 199 meters away from the nearest stop.

On average, there are 88 trips per day across all routes, which equates to approximately five 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 among 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. Sixty-four point one percent of residents declared themselves completely clear of medical ailments, compared to 62.9% across Greater Adelaide. Twenty point zero percent of residents are 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 dominant religion in Aldinga, comprising 31.1% of people there. Notably, the category 'Other' comprises 0.5% of Aldinga's population compared to 0.7% across Greater Adelaide.

The top three ancestry 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% in Aldinga compared to 5.4% regionally, Dutch remains consistent at 1.7%, while Welsh is slightly underrepresented at 0.7% compared to 0.8%.

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 5-14 age group comprises 13.3% of Aldinga's population, higher than Greater Adelaide's percentage. Conversely, the 25-34 cohort makes up 10.9%, which is less prevalent compared to Greater Adelaide. Post-2021 Census data shows that the 75-84 age group has increased from 5.6% to 7.0% of Aldinga's population, while the 5-14 cohort has declined from 14.5% to 13.3%. Population forecasts for 2041 indicate substantial demographic changes in Aldinga. Notably, the 85+ age group is expected to grow by 147%, reaching 826 people from 334. The combined 65+ age groups will account for 75% of total population growth, reflecting Aldinga's aging demographic profile. In contrast, the 0-4 and 35-44 cohorts are expected to experience population declines.