Aldgate - Stirling
Statistical Area - sa2

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

As of November 2025, Aldgate - Stirling's population is approximately 18,894, reflecting an increase of 686 people since the 2021 Census. This growth represents a 3.8% rise from the previous count of 18,208 residents. The change was inferred from ABS estimates showing an estimated resident population of 18,843 in June 2024 and an additional 22 validated new addresses since the Census date. This results in a density ratio of 161 persons per square kilometer. Overseas migration contributed approximately 70.5% of overall population gains during recent periods.

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 adopted, based on 2021 data and adjusted using weighted aggregation methods from LGA to SA2 levels. Population projections indicate an increase just below the national median for the area, with a projected growth of 1,356 persons by 2041, representing a total gain of 6.9% over the 17-year period.

Residential development activity is slightly higher than average within Aldgate - Stirling when compared nationally

Aldgate - Stirling has received approximately 40 dwelling approvals annually over the past five financial years, totalling 203 homes. As of FY-26, 16 approvals have been recorded. On average, 3.3 new residents per year have arrived for each dwelling constructed between FY-21 and FY-25. This indicates substantial supply lagging behind demand, leading to heightened buyer competition and pricing pressures.

The average construction value of new properties is $500,000, reflecting a focus on the premium segment with upmarket properties. In FY-26, $24.4 million in commercial approvals have been registered, indicating moderate levels of commercial development. Compared to Greater Adelaide, Aldgate - Stirling shows significantly reduced construction activity (79.0% below regional average per person), supporting stronger demand and values for established properties due to limited new supply. The area's new construction has been entirely comprised of standalone homes, preserving its low-density nature and attracting space-seeking buyers. As of FY-25, there were an estimated 447 people in the area per dwelling approval.

Population forecasts indicate Aldgate - Stirling will gain 1,305 residents by 2041. Construction is maintaining a reasonable pace with projected growth, but buyers may face growing competition as population increases.

Aldgate - Stirling has limited levels of nearby infrastructure activity, ranking in the 15thth percentile nationally

The performance of an area can significantly be influenced by changes to local infrastructure, major projects, and planning initiatives. AreaSearch has identified four projects that are likely to impact the area. Notable among these are South Eastern Freeway Upgrade (scheduled for completion in 2023), Adelaide Public Transport Capacity and Access (expected to be operational by 2025), and Adelaide's Inner And Outer Ring Route Capacity Improvements (planned for completion in late 2024).

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The labour market strength in Aldgate - Stirling positions it well ahead of most Australian regions

Aldgate-Stirling has a highly educated workforce with strong representation in professional services. The unemployment rate was 1.8% as of June 2025, lower than Greater Adelaide's 4.0%.

Employment growth over the past year was estimated at 1.4%. There were 10,618 residents employed by June 2025, with an unemployment rate of 2.2%, below Greater Adelaide's rate. Workforce participation was 65.9%, similar to Greater Adelaide's 61.7%. Key employment industries included health care & social assistance, education & training, and professional & technical services, with the latter showing strong specialization at 1.7 times the regional level.

Retail trade was under-represented, at 7.4% compared to Greater Adelaide's 10.0%. Limited local employment opportunities were indicated by Census data comparison of working population versus resident population. Between June 2024 and June 2025, employment levels increased by 1.4%, labour force grew by 1.7%, raising the unemployment rate by 0.3 percentage points. In contrast, Greater Adelaide saw employment growth of 2.1% and marginal labour force increase. National employment forecasts from Jobs and Skills Australia (May 2025) project national growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Aldgate-Stirling's employment mix suggests local growth of approximately 7.0% over five years and 14.4% over ten years, though this is a simple weighting extrapolation for illustrative purposes only.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

Aldgate - Stirling shows a median taxpayer income of $60,775 and an average income of $86,026 according to the latest postcode level ATO data aggregated by AreaSearch for financial year 2022. Nationally, this is extremely high compared to Greater Adelaide's median income of $52,592 and average income of $64,886. Based on Wage Price Index growth of 12.83% since financial year 2022, current estimates would be approximately $68,572 (median) and $97,063 (average) as of September 2025. According to the 2021 Census figures, household, family, and personal incomes in Aldgate - Stirling rank highly nationally, between the 78th and 83rd percentiles. Income analysis reveals that the $1,500 - 2,999 bracket dominates with 29.9% of residents (5,649 people), mirroring regional levels where 31.8% occupy this bracket. Aldgate - Stirling demonstrates considerable affluence with 36.9% earning over $3,000 per week, supporting premium retail and service offerings. After housing costs, residents retain 88.7% of income, reflecting strong purchasing power. The area's SEIFA income ranking places it in the 9th decile.

Aldgate - Stirling is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

In Aldgate - Stirling as per the latest Census, 98.1% of dwellings were houses, with the remaining 1.8% being semi-detached homes, apartments, or other types. This is compared to Adelaide metro's figures of 95.2% houses and 4.8% other dwellings. Home ownership in Aldgate - Stirling stood at 42.9%, with mortgaged properties making up 48.8% and rented dwellings accounting for 8.2%. The median monthly mortgage repayment in the area was $2,000, higher than Adelaide metro's average of $1,733. The median weekly rent in Aldgate - Stirling was $410, compared to Adelaide metro's $350. Nationally, Aldgate - Stirling's median monthly mortgage repayments exceeded the Australian average of $1,863, and rents were higher than the national figure of $375.

Aldgate - Stirling features high concentrations of family households, with a higher-than-average median household size

Family households constitute 79.8% of all households, including 39.3% couples with children, 31.7% couples without children, and 8.3% single parent families. Non-family households account for the remaining 20.2%, with lone person households at 18.8% and group households comprising 1.4%. The median household size is 2.7 people, which is larger than the Greater Adelaide average of 2.6.

Aldgate - Stirling shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Educational attainment in Aldgate significantly surpasses broader benchmarks. As of 2021, 45.9% of residents aged 15 and above hold university qualifications, compared to 25.7% in South Australia (SA) and 28.9% in the Greater Adelaide area. Bachelor degrees are the most common at 28.9%, followed by postgraduate qualifications at 11.5% and graduate diplomas at 5.5%. Trade and technical skills are also prominent, with 27.2% of residents aged 15 and above holding vocational credentials - advanced diplomas at 11.1% and certificates at 16.1%.

Educational participation is notably high, with 30.2% of residents currently enrolled in formal education. This includes 11.4% in primary education, 8.8% in secondary education, and 5.9% pursuing tertiary education. As of the 2020 school year, 12 schools serve a total of 2,776 students in Aldgate. The area demonstrates above-average socio-educational conditions with an Index of Community Socio-Educational Advantage (ICSEA) score of 1086. The educational mix includes 9 primary schools, 1 secondary school, and 2 K-12 schools.

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

The transport analysis indicates that Aldgate - Stirling has 152 active public transport stops. These are served by a mix of bus routes totalling 51 individual services. The combined weekly passenger trips across these routes amount to 1,279.

Transport accessibility is rated as moderate, with residents on average located 430 meters from the nearest stop. The service frequency averages 182 trips per day across all routes, equating to approximately 8 weekly trips per individual stop.

The level of general health in Aldgate - Stirling is notably higher than the national average with both young and old age cohorts seeing low prevalence of common health conditions

Aldgate-Stirling demonstrates above-average health outcomes with both young and old age cohorts experiencing low prevalence of common health conditions. The rate of private health cover is exceptionally high at approximately 63% of the total population (11,959 people), compared to 55.2% across Greater Adelaide. Nationally, the average is 55.3%.

The most common medical conditions in the area are asthma and arthritis, impacting 8.0 and 7.8% of residents respectively, while 70.1% declare themselves completely clear of medical ailments compared to 68.5% across Greater Adelaide. The area has 21.1% of residents aged 65 and over (3,984 people), which is higher than the 19.9% in Greater Adelaide. Health outcomes among seniors are particularly strong, performing even better than the general population in health metrics.

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

Aldgate-Stirling, surveyed in June 2016, had a culturally diverse population with 81.8% born in Australia, 93.3% being citizens, and 94.9% speaking English only at home. Christianity was the dominant religion, comprising 37.0%. Judaism, however, was overrepresented at 0.2%, compared to Greater Adelaide's 0.1%.

The top ancestry groups were English (33.9%), Australian (25.6%), and Scottish (8.7%). Notable divergences included German (7.1% vs regional 8.2%), Welsh (0.9% vs 0.7%), and Polish (1.0% vs 0.8%).

Aldgate - Stirling hosts an older demographic, ranking in the top quartile nationwide

The median age in Aldgate-Stirling is 44 years, which is higher than Greater Adelaide's average of 39 years and also exceeds the Australian median of 38 years. The 45-54 age cohort makes up 15.4% of the local population, notably higher than the Greater Adelaide average, while the 25-34 age group constitutes only 6.7%, which is lower compared to the Greater Adelaide average. Between the 2021 Census and the present, the proportion of the population aged 15 to 24 has increased from 11.3% to 13.1%, while the 75 to 84 age group has grown from 5.6% to 7.1%. Conversely, the proportion of those aged 5 to 14 has decreased from 14.2% to 13.2%. Population forecasts for 2041 indicate significant demographic changes in Aldgate-Stirling, with the 85+ age cohort projected to increase dramatically by 490 people (144%), from 340 to 831. The aging population trend is evident, with those aged 65 and above accounting for 57% of the projected growth. Conversely, the 0 to 4 and 65 to 74 age groups are expected to experience population declines.