Aldgate - Stirling

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

Based on AreaSearch's analysis, Aldgate - Stirling's population is around 18,902 as of Feb 2026. This reflects an increase of 694 people (3.8%) since the 2021 Census, which reported a population of 18,208 people. The change is inferred from the estimated resident population of 18,843 from the ABS as of June 2024 and an additional 22 validated new addresses since the Census date. This population level equates to a density ratio of 161 persons per square kilometer, providing significant space per person and potential room for further development. Population growth for the area was primarily driven by overseas migration, which contributed approximately 70.5% of overall population gains during recent periods.

AreaSearch adopts 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. Looking at population projections moving forward, a population increase just below the median of national statistical areas is expected, with the area expected to expand by 1,356 persons to 2041 based on the latest annual ERP population numbers, reflecting a gain of 6.9% in total over the 17 years.

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

Aldgate - Stirling has experienced around 40 dwellings receiving development approval per year, with 203 homes approved over the past 5 financial years (between FY-21 and FY-25) and 25 so far in FY-26. With an average of 3.3 people per year moving to the area for each dwelling built over the past 5 financial years (between FY-21 and FY-25), supply is substantially lagging demand, which generally means heightened buyer competition and pricing pressures, while new dwellings are developed at an average construction cost of $500,000, revealing that developers are targeting the premium market segment with higher-end properties. Additionally, $24.4 million in commercial development approvals have been recorded this financial year, demonstrating moderate levels of commercial development.

Compared to Greater Adelaide, Aldgate - Stirling has significantly less development activity (79.0% below regional average per person). This constrained new construction usually reinforces demand and pricing for existing dwellings. This activity is likewise lower than nationally, reflecting market maturity and pointing to possible development constraints. Further, recent development has been entirely comprised of detached dwellings, preserving the area's low density nature with an emphasis on detached housing attracting space-seeking buyers. The estimated count of 447 people in the area per dwelling approval reflects its quiet, low activity development environment.

Looking ahead, Aldgate - Stirling is expected to grow by 1,297 residents through to 2041 (from the latest AreaSearch quarterly estimate). Development is keeping a reasonable pace with projected growth, though buyers may face increasing competition as the population expands.

Aldgate - Stirling has emerging levels of nearby infrastructure activity, ranking in the 29thth percentile nationally

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total, 4 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include the South Eastern Freeway Upgrade, Adelaide Public Transport Capacity and Access, and Adelaide's Inner And Outer Ring Route Capacity Improvements, 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.

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AreaSearch analysis of employment trends sees Aldgate - Stirling performing better than 90% of local markets assessed across Australia

Aldgate - Stirling features a highly educated workforce, with professional services showing strong representation, an unemployment rate of just 1.8%, and 5.0% estimated employment growth over the past year. As of December 2025, 10,840 residents are in work, while the unemployment rate is 2.0% below Greater Adelaide's rate of 3.8%, and workforce participation is fairly standard (71.5% compared to Greater Adelaide's 67.2%). Based on Census responses, a moderate 19.4% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

Employment among residents is concentrated in health care & social assistance, education & training, and professional & technical services. The area demonstrates a particularly notable concentration in professional & technical services, with employment levels at 1.7 times the regional average. Conversely, retail trade shows lower representation at 7.4% versus the regional average of 10.0%. 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, during the year to December 2025, employment levels increased by 5.0% and the labour force increased by 5.3%, resulting in an unemployment rise of 0.3 percentage points. This contrasts with Greater Adelaide, where employment rose by 4.2%, the labour force grew 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 Aldgate - Stirling. 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 Aldgate - Stirling's employment mix suggests local employment should increase by 7.0% over five years and 14.4% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

As per AreaSearch's latest postcode level ATO data released for FY-23, the Aldgate - Stirling SA2's median income among taxpayers is $62,222, with an average of $87,511. This is among the highest in Australia, and compares to Greater Adelaide's median of $54,808 and average of $66,852. Based on Wage Price Index growth of 8.8% since FY-23, current estimates would be approximately $67,698 (median) and $95,212 (average) as of September 2025. From the 2021 Census, household, family and personal incomes all rank highly in Aldgate - Stirling, between the 78th and 83rd percentiles nationally. The earnings profile shows the $1,500 - 2,999 bracket dominates with 29.9% of residents (5,651 people), aligning with regional levels where this cohort likewise represents 31.8%. Higher earners represent a substantial presence with 36.9% exceeding $3,000 weekly, indicating strong purchasing power within the community. After housing costs, residents retain 88.7% of income, reflecting strong purchasing power and 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

Dwelling structure within Aldgate - Stirling, as evaluated at the latest Census, comprised 98.1% houses and 1.8% 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 Aldgate - Stirling was well beyond that of Adelaide metro, at 42.9%, with the remainder of dwellings either mortgaged (48.8%) or rented (8.2%). The median monthly mortgage repayment in the area was well above the Adelaide metro average at $2,000, while the median weekly rent figure was recorded at $410, compared to Adelaide metro's $1,562 and $320. Nationally, Aldgate - Stirling's mortgage repayments are higher than the Australian average of $1,863, while rents are exceeding the national figure of $375.

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

Family households dominate at 79.8% of all households, comprising 39.3% couples with children, 31.7% couples without children, and 8.3% single parent families. Non-family households make up the remaining 20.2%, with lone person households at 18.8% and group households comprising 1.4% of the total. The median household size of 2.7 people is larger than the Greater Adelaide average of 2.5.

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

Educational attainment in Aldgate - Stirling significantly surpasses broader benchmarks, with 45.9% of residents aged 15+ holding university qualifications compared to 25.7% in SA and 28.9% in Greater Adelaide. This substantial educational advantage positions the area strongly for knowledge-based opportunities. Bachelor degrees lead at 28.9%, followed by postgraduate qualifications (11.5%) and graduate diplomas (5.5%). Trade and technical skills feature prominently, with 27.2% of residents aged 15+ holding vocational credentials, including advanced diplomas (11.1%) and certificates (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.

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

Public transport analysis reveals 152 active transport stops operating within Aldgate - Stirling, comprising a mix of buses. These stops are serviced by 49 individual routes, collectively providing 1,282 weekly passenger trips. Transport accessibility is rated as moderate, with residents typically located 430 meters from the nearest transport stop. As a primarily residential area, most residents commute outward; the car remains the dominant mode at 90%, with 6% by bus. Vehicle ownership averages 1.9 per dwelling, which is above the regional average. Some 19.4% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 183 trips per day across all routes, equating to approximately 8 weekly trips per individual stop. The accompanying map shows the 100 nearest stops to the location centrepoint.

Aldgate - Stirling's residents boast exceedingly positive health performance metrics with very low prevalence of common health conditions across all age groups

Health outcomes data demonstrates outstanding results across Aldgate - Stirling, based on AreaSearch's assessment of mortality rates and chronic condition prevalence. There is a very low prevalence of common health conditions across all age groups, and the rate of private health cover is exceptionally high at approximately 63% of the total population (11,964 people). This compares to 52.7% across Greater Adelaide and a national average of 55.7%.

The most common medical conditions in the area are asthma and arthritis, impacting 8.0% and 7.8% of residents, respectively, while 70.1% declared themselves as completely clear of medical ailments compared to 67.9% across Greater Adelaide. The under-65 population demonstrates better than average health outcomes. The area has 21.3% of residents aged 65 and over (4,018 people), which is higher than the 19.3% in Greater Adelaide. Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

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 was found to be below average in terms of cultural diversity, with 81.8% of its population born in Australia, 93.3% being citizens, and 94.9% speaking English only at home. The main religion in Aldgate - Stirling is Christianity, which makes up 37.0% of people. However, the most apparent overrepresentation is in Judaism, which comprises 0.2% of the population, compared to 0.1% across Greater Adelaide.

In terms of ancestry (country of birth of parents), the top three represented groups in Aldgate - Stirling are English, comprising 33.9% of the population, which is substantially higher than the regional average of 27.8%, Australian, comprising 25.6% of the population, and Scottish, comprising 8.7% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: German is notably overrepresented at 7.1% of Aldgate - Stirling (vs 5.1% regionally), Welsh at 0.9% (vs 0.6%) and Polish at 1.0% (vs 1.0%).

Aldgate - Stirling hosts a notably older demographic compared to the national average

The 44-year median age in Aldgate - Stirling notably exceeds Greater Adelaide's average of 39 and is similarly well above the Australian median of 38. Compared to the Greater Adelaide average, the 45 - 54 cohort is notably over-represented (15.0% locally), while 25 - 34 year-olds are under-represented (6.6%). Since the 2021 Census, the 15 to 24 age group has grown from 11.3% to 13.2% of the population, while the 75 to 84 cohort increased from 5.6% to 7.5%. Conversely, the 5 to 14 cohort has declined from 14.2% to 13.1%. Population forecasts for 2041 indicate substantial demographic changes for Aldgate - Stirling. The 85+ age cohort is projected to surge dramatically, expanding by 475 people (134%) from 355 to 831. The aging population dynamic is clear, with those 65+ comprising 53% of projected growth. Conversely, the 15 to 24 and 0 to 4 cohorts are expected to experience population declines.