Aldinga

An assessment of population growth drivers in Aldinga reveals an overall ranking slightly below national averages considering recent, and medium term trends

Based on AreaSearch's analysis, Aldinga's population is around 17,559 as of Feb 2026. This reflects an increase of 1,636 people (10.3%) since the 2021 Census, which reported a population of 15,923 people. The change is inferred from the estimated resident population of 16,777 from the ABS as of June 2024 and an additional 285 validated new addresses since the Census date. This population level equates to a density ratio of 497 persons per square kilometer, providing significant space per person and potential room for further development. Aldinga's 10.3% growth since the 2021 census exceeded the SA3 area (6.4%) and the SA4 region, marking it as a growth leader in the region. Population growth for the area was primarily driven by overseas migration, which contributed approximately 50.1% of overall population gains during recent periods, although all drivers, including natural growth and interstate migration, were positive factors.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, and for years post-2032, the SA State Government's Regional/LGA projections by age category, released in 2023 and based on 2021 data, are adopted with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Moving forward with demographic trends, a population increase just below the median of national statistical areas is expected, with the area expected to grow by 1,417 persons to 2041 based on the latest annual ERP population numbers, recording a gain of 3.6% in total over the 17 years.

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

Aldinga has seen around 122 new homes approved each year, totalling 613 homes over the past 5 financial years. So far in FY-26, 73 approvals have been recorded. Given an average of 1.3 new residents per year per dwelling constructed over the past 5 financial years (between FY-21 and FY-25), the market shows a good balance between supply and demand, supporting stable conditions, while new homes are being built at an average value of $319,000. There have also been $121.8 million in commercial approvals this financial year, indicating strong commercial development momentum.

When measured against Greater Adelaide, Aldinga shows 54.0% higher new home approvals (per person), creating 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 appealing to those seeking space. At around 138 people per approval, Aldinga reflects a developing area.

Population forecasts indicate Aldinga will gain 635 residents through to 2041 (from the latest AreaSearch quarterly estimate). 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 limited levels of nearby infrastructure activity, ranking in the 4thth percentile nationally

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total, 13 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include the Aldinga Master Planned Community - Villawood Properties, Aldinga Sports Park Master Plan Redevelopment, Main South Road Duplication Project (Stage 2) - Aldinga to Sellicks Beach, and the Aldinga Central Shopping Centre Expansion, with the list below detailing those likely to be of most relevance.

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 possesses a skilled workforce, with essential services sectors well represented, an unemployment rate of 4.5%, and 6.0% estimated employment growth over the past year. As of December 2025, 8,620 residents are in work, while the unemployment rate is 0.6% above Greater Adelaide's rate of 3.8%, and workforce participation is broadly similar to Greater Adelaide's 67.2%. Based on Census responses, a low 11.1% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

The key industries of employment among residents are health care & social assistance, construction, and retail trade. The area has a particular employment specialization in construction, with an employment share 1.5 times the regional level. In contrast, professional & technical services employ just 4.2% of local workers, below Greater Adelaide's 7.3%. The area appears to offer limited employment opportunities locally, as indicated by the count of the Census working population versus the resident population.

Based on AreaSearch analysis of SALM and ABS data, over the 12 months to December 2025, employment increased by 6.0% while the labour force increased by 4.7%, causing the unemployment rate to fall by 1.2 percentage points. This compares to Greater Adelaide, where employment grew by 4.2%, the labour force expanded by 3.9%, and unemployment fell 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Aldinga. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific projections to Aldinga's employment mix suggests local employment should increase by 6.3% over five years and 13.3% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

AreaSearch's latest postcode level ATO data for FY-23 reveals that income in the Aldinga SA2 is lower than average on a national basis, with the median assessed at $49,068 while the average income stands at $57,482. This contrasts with Greater Adelaide's figures of a median income of $54,808 and an average income of $66,852. Based on Wage Price Index growth of 8.8% since FY-23, current estimates would be approximately $53,386 (median) and $62,540 (average) as of September 2025. Census 2021 income data shows household, family and personal incomes in Aldinga all fall between the 21st and 23rd percentiles nationally. Distribution data shows the $1,500 - 2,999 bracket dominates with 31.4% of residents (5,513 people), aligning with the surrounding region where this cohort likewise represents 31.8%. Housing affordability pressures are severe, with only 82.8% of income remaining, ranking at the 20th percentile.

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

Dwelling structure within Aldinga, as evaluated at the latest Census, comprised 91.4% houses and 8.6% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Adelaide metro's 75.2% houses and 24.9% other dwellings. Meanwhile, the level of home ownership within Aldinga slightly lagged that of Adelaide metro, at 29.8%, with the remainder of dwellings either mortgaged (44.7%) or rented (25.6%). The median monthly mortgage repayment in the area was well below the Adelaide metro average at $1,400, while the median weekly rent figure was recorded at $320, compared to Adelaide metro's $1,562 and $320. Nationally, Aldinga's mortgage repayments are significantly lower than the Australian average of $1,863, while rents are substantially below the national figure of $375.

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

Family households dominate at 70.7% of all households, comprising 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% of the total. The median household size of 2.5 people matches 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 (17.3%) substantially below the Australian average of 30.4%. This represents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees lead at 12.0%, followed by postgraduate qualifications (3.1%) and graduate diplomas (2.2%). Trade and technical skills feature prominently, with 43.4% of residents aged 15+ holding vocational credentials, including advanced diplomas (10.6%) and certificates (32.8%).

Educational participation is notably 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

Public transport analysis reveals 115 active transport stops operating within Aldinga, comprising a mix of buses. These stops are serviced by 11 individual routes, collectively providing 621 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 199 meters from the nearest transport stop. As a primarily residential area, most residents commute outward, and the car remains the dominant mode at 90%. Vehicle ownership averages 1.5 per dwelling. A relatively low 11.1% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 88 trips per day across all routes, equating to approximately 5 weekly trips per individual stop. The accompanying map shows the 100 nearest stops to the location centrepoint.

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 of mortality rates and chronic condition prevalence. Common health conditions are somewhat prevalent across both younger and older age cohorts, and the rate of private health cover is very low at approximately 48% of the total population (~8,358 people). This compares to 52.7% across Greater Adelaide. The national average is 55.7%.

The most common medical conditions in the area are mental health issues and arthritis, impacting 10.2 and 9.5% of residents, respectively, while 64.1% declared themselves as completely clear of medical ailments compared to 67.9% across Greater Adelaide. The working-age population faces notable health challenges with elevated chronic condition rates. The area has 20.7% of residents aged 65 and over (3,627 people), which is higher than the 19.3% 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 was found to be below average in terms of cultural diversity, with 79.4% of its population born in Australia, 89.8% being citizens, and 95.9% speaking English only at home. The main religion in Aldinga is Christianity, which makes up 31.1% of the population. However, the most apparent overrepresentation was in Other, which comprises 0.5% of the population, compared to 1.8% across Greater Adelaide.

In terms of ancestry (country of birth of parents), the top three represented groups in Aldinga are English, comprising 37.5% of the population, which is substantially higher than the regional average of 27.8%, Australian, comprising 27.6% of the population, and Scottish, comprising 7.8% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: German is notably overrepresented at 5.1% of the population in Aldinga (vs 5.1% regionally), Dutch at 1.7% (vs 1.2%) and Welsh at 0.7% (vs 0.6%).

Aldinga's population is slightly older than the national pattern

The 40-year median age in Aldinga is similar to Greater Adelaide's average of 39 and similarly somewhat older than Australia's 38 years. The 55 - 64 age group shows strong representation at 13.4% compared to Greater Adelaide, whereas the 25 - 34 cohort is less prevalent at 10.7%. Post-2021 Census data shows the 75 to 84 age group has grown from 5.6% to 7.4% of the population. Conversely, the 5 to 14 cohort has declined from 14.5% to 12.9% and the 45 to 54 group dropped from 13.3% to 11.9%. Population forecasts for 2041 indicate substantial demographic changes for Aldinga. Leading the demographic shift, the 85+ group will grow by 128% (464 people), reaching 826 from 361. Notably, the combined 65+ age groups will account for 80% of total population growth, reflecting the area's aging demographic profile. In contrast, the 15 to 24 and 0 to 4 cohorts are expected to experience population declines.