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 approximately 16,866 as of August 2025. This figure represents an increase of 943 people, a rise of 5.9%, since the 2021 Census which recorded a population of 15,923. The change is inferred from the estimated resident population of 16,789 in June 2024 and an additional 203 validated new addresses since the Census date. This results in a population density ratio of 477 persons per square kilometer. Aldinga's growth rate of 5.9% exceeded both its SA3 area (4.8%) and SA4 region, indicating it as a growth leader. Overseas migration contributed approximately 50.1% to the overall population gains during recent periods, with all drivers including natural growth and interstate migration 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 by age category are adopted, based on 2021 data and adjusted using weighted aggregation from LGA to SA2 levels. Future demographic trends suggest a population increase just below the national median statistical area average, with Aldinga expected to grow by 1,417 persons to 2041, representing a total gain of 7.9% 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. Development approval data is produced by the Australian Bureau of Statistics on a financial year basis, totalling 613 approvals across the past five financial years from FY-21 to FY-25, with an additional 20 recorded so far in FY-26. On average, 1.3 new residents have arrived per new home over the past five financial years. This indicates a balanced supply and demand, creating stable market conditions for new dwellings developed at an average expected construction cost of $445,000.

In this financial year, $121.8 million in commercial development approvals have been recorded, suggesting robust local business investment. 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 with a focus on family homes appealing to those seeking space. With around 138 people per approval, Aldinga reflects a developing area.

Population forecasts indicate Aldinga will gain 1,328 residents by 2041. Given 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

The performance of a region can significantly be influenced by changes in local infrastructure, major projects, and planning initiatives. AreaSearch has identified 13 such projects that could impact this area. Notable among them are the Aldinga Master Planned Community by Villawood Properties, the redevelopment of Aldinga Sports Park Master Plan, the expansion of Aldinga Central Shopping Centre, and the preservation of the Aldinga Rail Extension Corridor. The following list details those considered most relevant.

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

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

Aldinga's workforce comprises skilled individuals with notable representation in essential services sectors. The unemployment rate stood at 5.3% as of the past year, with an estimated employment growth of 2.9%.

As of June 2025, 8,223 residents were employed while the unemployment rate was 1.3% higher than Greater Adelaide's rate of 4.0%. Workforce participation in Aldinga was somewhat lower at 59.1%, compared to Greater Adelaide's 61.7%. Key industries employing Aldinga residents include health care & social assistance, construction, and retail trade. The area specializes in construction employment, with a share 1.5 times the regional level.

Conversely, professional & technical services employed only 4.2% of local workers, below Greater Adelaide's 7.3%. Over the year to June 2025, employment increased by 2.9%, while labour force grew by 2.7%, leading to a fall in unemployment rate by 0.2 percentage points. In contrast, Greater Adelaide saw employment grow by 2.1% and labour force expand by 2.1%, with a marginal rise in unemployment. State-level data from Sep-25 shows South Australian employment grew by 1.06% year-on-year, adding 9,370 jobs, and the state's unemployment rate was 4.5%, aligning with the national rate of 4.5%. SA's employment growth outpaced the national average of 0.26%. National employment forecasts from Jobs and Skills Australia, released in May 2025, project a 6.6% increase 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 latest postcode level ATO data for financial year ended June 30, 2022 shows median income in Aldinga at $46,734 and average income at $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 Wage Price Index growth of 10.83% from July 1, 2022 to March 2025, estimated current incomes in Aldinga are approximately $51,795 (median) and $60,174 (average). Census data from 2021 shows household, family and personal incomes in Aldinga all fall between the 21st and 23rd percentiles nationally. Income distribution indicates that 31.4% of residents (5,295 people) earn between $1,500 - $2,999 annually, similar to the surrounding region at 31.8%. Housing affordability pressures are severe in Aldinga, with only 82.8% of income remaining after housing costs, 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% comprising semi-detached properties, apartments, and other dwelling types. In comparison, Adelaide metropolitan area had 89.2% houses and 10.7% other dwellings. The home ownership rate in Aldinga stood at 29.8%, with mortgaged dwellings at 44.7% and rented ones at 25.6%. The median monthly mortgage repayment in the area was $1,400, below Adelaide metro's average of $1,452. The median weekly rent figure in Aldinga was $320 compared to Adelaide metro's $314. Nationally, Aldinga's median mortgage repayments were significantly lower than the Australian average of $1,863, while 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, broken down into 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 stands at 2.5 people, aligning with the Greater Adelaide average.

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

The area faces educational challenges, with university qualification rates at 17.3%, significantly below the Australian average of 30.4%. This presents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are most common at 12.0%, followed by postgraduate qualifications (3.1%) and graduate diplomas (2.2%). Trade and technical skills are prominent, with 43.4% of residents aged 15+ holding vocational credentials – advanced diplomas at 10.6% and certificates at 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. Aldinga's 4 schools have a combined enrollment reaching 1,202 students as of the latest data. Aldinga demonstrates typical Australian school conditions (ICSEA: 961) with balanced educational opportunities. The educational mix includes 1 primary school and 3 K-12 schools. School places per 100 residents are at 7.1, falling below the regional average of 13.6, indicating some students may attend schools in adjacent areas. Note: where schools show 'n/a' for enrolments, please refer to 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. These are served by buses from 11 different routes that together facilitate 621 weekly passenger trips. The average distance to the nearest stop for residents is 199 meters.

On average, there are 88 daily trips across all routes, which equates to about 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, with common health conditions prevalent across both younger and older age cohorts. The rate of private health cover is very low at approximately 47% of the total population (around 7,960 people), compared to the national average of 55.3%.

Mental health issues impact 10.2% of residents and arthritis affects 9.5%. Approximately 64.1% of residents declare themselves completely clear of medical ailments, slightly higher than the 62.9% across Greater Adelaide. The area has 20.0% of residents aged 65 and over (3,376 people). Health outcomes among seniors present some challenges, generally in line with the overall 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 was the predominant religion in Aldinga as of 2016, comprising 31.1% of the population. The most notable overrepresentation was seen in the 'Other' category, which accounted for 0.5% of Aldinga's population compared to 0.7% across Greater Adelaide.

In terms of ancestry, the top three represented groups were English (37.5%), Australian (27.6%), and Scottish (7.8%). There were notable divergences in the representation of certain ethnic groups: German was overrepresented at 5.1% compared to 5.4% regionally, Dutch was equally represented at 1.7%, and Welsh was slightly underrepresented at 0.7% versus 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 constitutes 13.3% of Aldinga's population, higher than Greater Adelaide's percentage. However, the 25-34 cohort makes up only 10.9%. Post-2021 Census data reveals that the 75 to 84 age group has grown from 5.6% to 7.0%, while the 5 to 14 cohort has decreased from 14.5% to 13.3%. By 2041, population forecasts indicate significant demographic changes in Aldinga. The 85+ age group is expected to grow by 147%, reaching 826 people from 333. Notably, the combined 65+ age groups will account for 75% of total population growth, reflecting Aldinga's aging demographic profile. In contrast, the 35-44 and 5-14 cohorts are projected to experience population declines.