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 of May 2026, is approximately 17,153. This figure represents an increase of 1,230 people since the 2021 Census, which recorded a population of 15,923. The growth from June 2025's estimated resident population of 17,041 and 287 new addresses validated post-Census accounts for this increase. This results in a population density ratio of 485 persons per square kilometer. Aldinga's 7.7% growth rate since the 2021 census exceeds that of the SA3 area (5.8%) and the SA4 region, positioning it as a growth leader. Interstate migration contributed approximately 45.7% to overall population gains during recent periods, although all factors including overseas migration and natural growth were positive.

AreaSearch uses ABS/Geoscience Australia projections released in 2024 with a base year of 2022 for each SA2 area. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections are adopted with adjustments made using weighted aggregation methods. According to demographic trends, Aldinga is expected to grow by approximately 1,336 persons by 2041, reflecting a gain of around 7.1% over the 16-year period based on the 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. As of FY-26, 82 approvals have been recorded. The average number of new residents per year per dwelling constructed between FY-21 and FY-25 is 1.3, indicating a balanced supply and demand market with stable conditions. The average construction cost value for new homes is $319,000.

In FY-26, there have been $121.8 million in commercial approvals, suggesting strong commercial development momentum. Compared to Greater Adelaide, Aldinga has 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 and appealing to families seeking space. With around 138 people per approval, Aldinga reflects a developing area with population forecasts indicating an increase of 1,224 residents by 2041.

Current construction levels should adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Aldinga has limited levels of nearby infrastructure activity, ranking in the 6thth percentile nationally

Changes to local infrastructure 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 Central Shopping Centre Expansion. 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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Employment conditions in Aldinga remain below the national average according to AreaSearch analysis

Aldinga's workforce is skilled with notable representation in essential services sectors. The unemployment rate was 4.5% as of December 2021, with an estimated employment growth of 6.0% over the past year. As of December 2025, 8,620 residents were employed while the unemployment rate was 4.4%, slightly higher than Greater Adelaide's 3.8%.

Workforce participation in Aldinga was similar to Greater Adelaide at 66.0%. Census responses indicated that only 11.1% of residents worked from home. The key industries of employment among residents were health care & social assistance, construction, and retail trade. Aldinga had a particular specialization in construction with an employment share of 1.5 times the regional level.

Conversely, professional & technical services employed just 4.2% of local workers, below Greater Adelaide's 7.3%. Over the 12 months to December 2025, employment increased by 6.0% while labour force increased by 4.7%, reducing the unemployment rate by 1.2 percentage points. In comparison, Greater Adelaide saw employment grow by 4.2%, labour force expand by 3.9%, and unemployment fall by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% increase in employment 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, though this is a simple weighting extrapolation for illustrative purposes and does not account for localized population projections.

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

AreaSearch's latest postcode level ATO data for financial year ending 30 June 2023 indicates that Aldinga SA2 had a median income of $49,068 and an average income of $57,482. This is lower than the national averages of $54,808 (median) and $66,852 (average), as reported for Greater Adelaide. Based on Wage Price Index growth of 10.17% from financial year ending 30 June 2023 to March 2026, estimated incomes would be approximately $54,058 (median) and $63,328 (average). Census data from 2021 shows that Aldinga's household, family, and personal incomes all fall between the 21st and 23rd percentiles nationally. Income distribution reveals that 31.4% of residents earn between $1,500 and $2,999 annually (5,386 people), a figure similar to the surrounding region at 31.8%. Aldinga faces severe housing affordability pressures, with only 82.8% of income remaining after housing costs, ranking at the 20th percentile nationally.

Aldinga is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

Aldinga's dwelling structure, as per the latest Census, consisted of 91.4% houses and 8.6% other dwellings. In contrast, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Aldinga was at 29.8%, with mortgaged dwellings at 44.7% and rented ones at 25.6%. The median monthly mortgage repayment in Aldinga was $1,400, lower than Adelaide metro's average of $1,562. The median weekly rent in Aldinga was $320, matching Adelaide metro's figure but significantly lower than the national average of $375. Nationally, Aldinga's mortgage repayments were notably below the Australian average of $1,863.

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 comprise 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, matching 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 Australia's average of 30.4%. 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 - advanced diplomas at 10.6% and certificates at 32.8%. Educational participation is high, with 29.2% currently enrolled in formal education.

This includes 12.4% in primary, 7.7% in secondary, and 3.4% in tertiary education.

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 home to the nearest transport stop is 199 meters. Residents primarily commute outward due to Aldinga being predominantly residential. Car remains the most popular mode of transportation, used by 90% of residents. On average, there are 1.5 vehicles per dwelling.

According to the 2021 Census, only 11.1% of residents work from home, which could be influenced by COVID-19 conditions. There is an average service frequency of 88 trips per day across all routes, equating to roughly five weekly trips per stop. The accompanying map displays the 100 nearest stops to Aldinga's central location point.

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 based on AreaSearch's assessment. Mortality rates and chronic condition prevalence are high, with common health conditions prevalent across both younger and older age cohorts. Only approximately 48% of Aldinga's total population (~8,164 people) has private health cover, compared to 52.7% in Greater Adelaide and the national average of 55.7%.

Mental health issues impact 10.2% of residents, while arthritis affects 9.5%. Despite this, 64.1% of residents declare themselves completely clear of medical ailments, compared to 67.9% across Greater Adelaide. The working-age population faces notable health challenges due to elevated chronic condition rates. Aldinga has 20.7% of residents aged 65 and over (3,543 people), higher than the 19.2% in Greater Adelaide. Health outcomes among seniors present some challenges, with national rankings broadly in line with the general population.

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 and 89.8% being citizens. English was spoken as the only language at home by 95.9% of Aldinga residents. Christianity was the predominant religion, comprising 31.1% of people in Aldinga.

However, the most notable overrepresentation was seen in the 'Other' category, which made up 0.5% of Aldinga's population compared to 1.8% across Greater Adelaide. In terms of ancestry, the top three groups were English (37.5%), Australian (27.6%), and Scottish (7.8%). Notably, German, Dutch, and Welsh groups were overrepresented in Aldinga compared to regional averages: German at 5.1%, Dutch at 1.7%, and Welsh at 0.7%.

Aldinga's population is slightly older than the national pattern

The median age in Aldinga is 40 years, comparable to Greater Adelaide's average of 39 years but somewhat older than Australia's median age of 38 years. The 55-64 age group constitutes 13.0% of Aldinga's population, higher than Greater Adelaide's percentage, while the 25-34 age group makes up 10.8%, lower than Greater Adelaide's figure. Post-2021 Census data reveals that the 75 to 84 age group has increased from 5.6% to 7.2% of Aldinga's population. Conversely, the 5 to 14 age group has decreased from 14.5% to 13.0%, and the 45 to 54 age group has dropped from 13.3% to 12.0%. Population forecasts for 2041 indicate significant demographic changes in Aldinga, with the 85+ age group projected to grow by 135% (from 377 to 888 people). The combined 65+ age groups are expected to account for 73% of total population growth, reflecting Aldinga's aging demographic profile. In contrast, the 0 to 4 and 55 to 64 age cohorts are forecasted to experience population declines.