Aldgate

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

As of Nov 2025, Aldgate's population is estimated at around 3,593 people. This reflects an increase of 122 people since the 2021 Census, which reported a population of 3,471 people. The change is inferred from AreaSearch's estimate of 3,584 residents following examination of the latest ERP data release by ABS (June 2024), along with an additional three validated new addresses since the Census date. This level of population equates to a density ratio of 427 persons per square kilometer. Overseas migration contributed approximately 71% of overall population gains during recent periods in Aldgate.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For areas not covered by this data and years post-2032, SA State Government's Regional/LGA projections are adopted, adjusted using a method of weighted aggregation of population growth from LGA to SA2 levels. By 2041, Aldgate is expected to increase by 258 persons based on aggregated SA2-level projections, reflecting an increase of approximately 7.9% over the 17 years.

AreaSearch analysis of residential development drivers sees Aldgate recording a relatively average level of approval activity when compared to local markets analysed countrywide

AreaSearch analysis of ABS building approval numbers in Aldgate shows around 5 dwellings receiving development approval annually. Between FY-21 and FY-25, approximately 26 homes were approved, with another 3 approved so far in FY-26.

This results in an average of 5.1 people moving to the area per dwelling built over these years. Demand significantly outpaces supply, which typically puts upward pressure on prices and increases competition among buyers. The average expected construction cost value for new homes is $651,000, indicating a focus on the premium market with high-end developments. Compared to Greater Adelaide, Aldgate records markedly lower building activity, at 86.0% below the regional average per person. This scarcity of new dwellings typically strengthens demand and prices for existing properties.

However, building activity has accelerated in recent years. Recent building activity consists entirely of detached houses, preserving the area's low density nature and attracting space-seeking buyers. The estimated count is 450 people in the area per dwelling approval, reflecting its quiet, low activity development environment. Future projections show Aldgate adding 283 residents by 2041. At current development rates, housing supply may struggle to match population growth, potentially heightening buyer competition and supporting price increases.

Aldgate has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

No infrastructure changes are expected in the area. No major projects have been identified by AreaSearch that could impact the region. Key initiatives include South Eastern Freeway Upgrade, South Eastern Freeway Upgrade, Adelaide Public Transport Capacity and Access, and Adelaide's Inner And Outer Ring Route Capacity Improvements.

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Aldgate ranks among the top 25% of areas assessed nationally for overall employment performance

Aldgate has an educated workforce with strong professional services representation. The unemployment rate in Aldgate is 2.4%, lower than the national average of 5.0%.

Over the past year, employment grew by 1.2% based on AreaSearch data aggregation. As of June 2025, 1,948 residents are employed with an unemployment rate of 1.6%, below Greater Adelaide's rate of 4.0%. Workforce participation is at 65.1%, slightly higher than Greater Adelaide's 61.7%. Leading employment industries include health care & social assistance and professional & technical services, with the latter being particularly specialized in Aldgate.

Manufacturing, however, is under-represented with only 3.7% of the workforce compared to 7.0% regionally. The area offers limited local employment opportunities as indicated by Census data. Between June 2024 and June 2025, employment levels increased by 1.2%, labour force grew by 1.7%, resulting in a marginal unemployment rise of 0.4 percentage points. In contrast, Greater Adelaide saw employment rise by 2.1% with a corresponding increase in the labour force and minimal change in unemployment rates. Jobs and Skills Australia's national employment forecasts from Sep-22 project national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Aldgate's employment mix suggests local employment should increase by 7.2% over five years and 14.6% over ten years, though these are simple extrapolations for illustrative purposes only.

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

AreaSearch aggregated latest postcode level ATO data released for financial year ending June 2022. Aldgate's median income was $60,897 with an average of $86,199. These figures were among the highest in Australia, compared to Greater Adelaide's median of $52,592 and average of $64,886. Based on Wage Price Index growth of 12.83% from June 2022 to September 2025, estimated incomes would be approximately $68,710 (median) and $97,258 (average). Census data from 2021 shows Aldgate's household, family, and personal incomes ranked between the 78th and 91st percentiles nationally. Income distribution showed 29.2% of residents earning between $1,500 and $2,999 annually. Surrounding regions had a similar proportion at 31.8%. Economic strength was evident with 41.8% of households earning over $3,000 weekly. After housing costs, residents retained 89.4% of income, reflecting strong purchasing power. Aldgate's SEIFA income ranking placed it in the 9th decile.

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

Aldgate's dwelling structures, as per the latest Census, consisted entirely of houses with no other dwelling types present. This contrasted with Adelaide metro's mix of 95.2% houses and 4.8% other dwellings. Home ownership in Aldgate stood at 46.1%, higher than Adelaide metro's level. The remaining dwellings were either mortgaged (47.9%) or rented (5.9%). The median monthly mortgage repayment in Aldgate was $2,200, exceeding the Adelaide metro average of $1,733 and the national average of $1,863. Meanwhile, the median weekly rent in Aldgate was $500, higher than both Adelaide metro's figure of $350 and the national average of $375.

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

Family households constitute 85.4% of all households, including 43.2% couples with children, 33.6% couples without children, and 8.4% single parent families. Non-family households account for the remaining 14.6%, with lone person households at 13.5% and group households comprising 0.5%. The median household size is 2.8 people, larger than the Greater Adelaide average of 2.6.

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

Aldgate's residents aged 15+ have a higher proportion with university qualifications (48.9%) compared to South Australia (25.7%) and Greater Adelaide (28.9%). Bachelor degrees are the most common at 30.9%, followed by postgraduate qualifications (12.3%) and graduate diplomas (5.7%). Vocational pathways account for 23.6% of qualifications, with advanced diplomas at 11.0% and certificates at 12.6%. Educational participation is high, with 30.5% currently enrolled in formal education: primary (12.1%), secondary (9.3%), and tertiary (5.7%).

Aldgate's three schools have a combined enrollment of 380 students. The area has above-average socio-educational conditions (ICSEA: 1098). It includes one primary school and two K-12 schools, with school places per 100 residents at 10.6 compared to the regional average of 14.0. Some students may attend schools in adjacent areas.

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

The analysis of public transport in Aldgate shows that there are currently 20 active transport stops operating within the area. These stops serve a mix of bus routes, with a total of 22 individual routes in operation. Collectively, these routes provide approximately 500 weekly passenger trips.

The accessibility of transport in Aldgate is rated as moderate, with residents typically located about 453 meters from the nearest transport stop. On average, there are around 71 trips per day across all routes, which equates to roughly 25 weekly trips per individual stop.

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

Aldgate shows superior health outcomes for both younger and older age groups, with low prevalence of common health conditions. The rate of private health cover stands at approximately 61% of the total population (2,192 people), higher than Greater Adelaide's 55.2%. Nationally, this figure averages at 55.3%.

Residents commonly report asthma and arthritis, affecting 8.2% and 7.2%, respectively, while 70.7% claim to be free of medical ailments, compared to Greater Adelaide's 68.5%. Aldgate has a higher proportion of seniors aged 65 and over at 22.5% (808 people), compared to Greater Adelaide's 19.9%. Health outcomes among seniors in Aldgate are notably strong, outperforming the general population in health metrics.

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

Aldgate's population shows low cultural diversity, with 81.4% born in Australia, 93.9% being citizens, and 95.9% speaking English only at home. Christianity is the predominant religion, practiced by 37.5%. While Judaism comprises a similar proportion nationally (0.1%), it is slightly overrepresented in Aldgate.

The top three ancestry groups are English (33.9%), Australian (25.8%), and Scottish (8.9%). Some ethnic groups show notable differences: Polish (1.4% vs regional 0.8%), Welsh (1.0% vs 0.7%), and German (6.8% vs 8.2%) are relatively more prevalent in Aldgate.

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

Aldgate's median age is 45 years, higher than Greater Adelaide's average of 39 and the national average of 38. The 65-74 age group makes up 13.3% of Aldgate's population, compared to Greater Adelaide. The 25-34 cohort represents 4.6%, lower than Greater Adelaide. Post-2021 Census data shows the 15-24 age group grew from 11.9% to 13.7%, while the 75-84 cohort increased from 5.9% to 7.3%. Conversely, the 5-14 cohort declined from 15.4% to 14.2%. By 2041, demographic modeling suggests Aldgate's age profile will change significantly. The 85+ cohort is projected to grow by 134%, adding 91 residents to reach 160. Senior residents (65+) will drive 53% of population growth, indicating demographic aging trends. Meanwhile, numbers in the 65-74 age range are expected to fall by 31%.