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 Feb 2026, the estimated population of Aldgate is around 3,562, reflecting an increase of 91 people since the 2021 Census, which reported a population of 3,471. This increase was inferred from AreaSearch's estimation of the resident population at 3,551 following examination of ABS's latest ERP data release in June 2024, and an additional 3 validated new addresses since the Census date. This results in a density ratio of 423 persons per square kilometer. Population growth was primarily driven by overseas migration, contributing approximately 71.0% of overall population gains during recent periods. AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022.

For areas not covered and years post-2032, the SA State Government's Regional/LGA projections by age category are adopted, released in 2023 based on 2021 data, with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Demographic trends suggest a population increase just below the median of Australian statistical areas, with Aldgate expected to increase by 256 persons to reach 3,817 by 2041, reflecting an overall increase of 8.8% over the 17 years.

Residential development activity is lower than average in Aldgate according to AreaSearch's national comparison of local real estate markets

AreaSearch analysis of ABS building approval numbers shows Aldgate has averaged approximately four new homes approved annually over the past five financial years, totalling around 20 homes. As of FY-26, one approval has been recorded. This translates to an average of about 6.6 new residents arriving per year per dwelling constructed between FY-21 and FY-25. The supply of new dwellings is substantially lagging demand, indicating heightened buyer competition and pricing pressures.

Developers focus on the premium segment with upmarket properties, as evidenced by an average construction value of $651,000 for new dwellings. In FY-26, commercial approvals valued at $5.2 million have been registered, suggesting Aldgate's residential character. Compared to Greater Adelaide, Aldgate records significantly lower building activity, with 89.0% fewer approvals per person. This limited supply generally supports stronger demand and values for established properties. The area's development level is also below the national average, reflecting its maturity and possible planning constraints.

Recent development has been entirely comprised of detached dwellings, maintaining Aldgate's traditional low density character with a focus on family homes appealing to those seeking space. The estimated population per dwelling approval is 1200 people, indicating a quiet, low activity development environment. According to AreaSearch's latest quarterly estimate, Aldgate is expected to grow by 312 residents through to 2041. At current development rates, housing supply may struggle to match population growth, potentially heightening buyer competition and supporting price increases.

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

No infrastructure projects have been identified by AreaSearch that are likely to impact 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.

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Employment conditions in Aldgate demonstrate exceptional strength compared to most Australian markets

Aldgate has a highly educated workforce with professional services well-represented. Its unemployment rate was 2.4% in the past year, with an estimated employment growth of 2.7%. As of September 2025, 1,958 residents were employed, with an unemployment rate of 1.5% below Greater Adelaide's rate of 3.9%, and workforce participation at 69.4%.

Approximately 21.2% of residents worked from home, considering Covid-19 lockdown impacts. Key industries included health care & social assistance, professional & technical services, and education & training. Professional & technical services had a notable concentration, with employment levels at 1.8 times the regional average. Manufacturing had limited presence, with 3.7% employment compared to 7.0% regionally.

The area offered limited local employment opportunities, indicated by the count of Census working population versus resident population. Between September 2024 and September 2025, employment increased by 2.7%, labour force by 3.2%, leading to an unemployment rise of 0.5 percentage points. In comparison, Greater Adelaide recorded employment growth of 3.0% and a fall in unemployment by 0.1 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 suggest potential future demand within Aldgate. These projections estimate national employment growth at 6.6% over five years and 13.7% over ten years, with varying rates across industry sectors. Applying these projections to Aldgate's employment mix indicates local employment should increase by 7.2% over five years and 14.6% over ten years, using a simple weighting extrapolation for illustrative purposes.

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

AreaSearch's latest postcode level ATO data for financial year 2023 shows income in Aldgate is high nationally. The median assessed income is $60,897 and the average income stands at $86,199. 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 financial year 2023, current estimates would be approximately $66,256 (median) and $93,785 (average) as of September 2025. According to the 2021 Census figures, incomes in Aldgate rank highly nationally, between the 78th and 91st percentiles for household, family, and personal incomes. The income bracket of $1,500 - $2,999 dominates with 29.2% of residents (1,040 people), consistent with broader trends across the metropolitan region showing 31.8% in the same category. Higher earners represent a substantial presence with 41.8% exceeding $3,000 weekly. After housing costs, residents retain 89.4% of income, reflecting strong purchasing power within the community. The area's SEIFA income ranking places 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 data, consisted entirely of houses with no other dwellings recorded. This contrasts with Adelaide metro's mix of 75.2% houses and 24.9% other dwellings. Home ownership in Aldgate stood at 46.1%, with mortgaged dwellings at 47.9% and rented ones at 5.9%. The median monthly mortgage repayment was $2,200, exceeding Adelaide metro's average of $1,863. Weekly rent in Aldgate was $500, higher than Adelaide metro's $320 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 comprise the remaining 14.6%, with lone person households at 13.5% and group households making up 0.5%. The median household size is 2.8 people, larger than the Greater Adelaide average of 2.5.

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

Aldgate's educational attainment significantly exceeds broader benchmarks. Among residents aged 15+, 48.9% hold university qualifications, compared to the South Australian (SA) average of 25.7% and Greater Adelaide's 28.9%. This educational advantage positions Aldgate strongly for knowledge-based opportunities. Bachelor degrees are most prevalent at 30.9%, followed by postgraduate qualifications (12.3%) and graduate diplomas (5.7%).

Vocational pathways account for 23.6% of qualifications among those aged 15+, with advanced diplomas at 11.0% and certificates at 12.6%. Educational participation is notably high, with 30.5% of residents currently enrolled in formal education. This includes 12.1% in primary education, 9.3% in secondary education, and 5.7% pursuing tertiary education.

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 23 individual routes providing service to the area. The combined weekly passenger trips for these routes amount to 503. Transport accessibility is rated as moderate, with residents typically located approximately 453 meters from their nearest transport stop. As Aldgate is predominantly residential, most residents commute outward from the area. The dominant mode of transportation remains the car at a rate of 92%, while bus usage accounts for 6%.

On average, there are 1.9 vehicles per dwelling in Aldgate, which exceeds the regional average. According to the 2021 Census, some 21.2% of residents work from home, a figure that may be influenced by COVID-19 conditions. The average service frequency across all routes is 71 trips per day, equating to approximately 25 weekly trips per individual stop.

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

Aldgate's health outcomes show notable results based on AreaSearch's assessment. Mortality rates and chronic condition prevalence were very low across all age groups. Private health cover was exceptionally high at approximately 61% of Aldgate's total population (2,173 people), compared to Greater Adelaide's 52.7%.

Nationally, it stands at 55.7%. The most prevalent medical conditions were asthma and arthritis, affecting 8.2% and 7.2% of residents respectively. Notably, 70.7% of Aldgate residents declared themselves completely clear of medical ailments, compared to Greater Adelaide's 67.9%. Health outcomes for the under-65 population are better than average. Aldgate has 22.5% of residents aged 65 and over (801 people), higher than Greater Adelaide's 19.3%. Health outcomes among seniors in Aldgate align broadly with national rankings, mirroring those of the general population.

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

Aldgate's cultural diversity was found to be below average, with 81.4% of its population born in Australia and 93.9% being citizens. English was spoken exclusively at home by 95.9%. Christianity dominated religious demographics at 37.5%, but Judaism was overrepresented at 0.1%, compared to Greater Adelaide's 0.1%.

The top three ancestry groups were English (33.9%), Australian (25.8%), and Scottish (8.9%). Notably, Polish (1.4% vs regional 1.0%), Welsh (1.0% vs 0.6%), and German (6.8% vs 5.1%) were overrepresented in Aldgate.

Aldgate hosts a notably older demographic compared to the national average

Aldgate's median age is 45 years, considerably higher than Greater Adelaide's average of 39 and the national average of 38. The 45-54 age group comprises 14.9%, compared to Greater Adelaide, while the 25-34 cohort is less prevalent at 4.5%. Post-2021 Census data shows the 15-24 age group grew from 11.9% to 13.8%, and the 75-84 cohort increased from 5.9% to 7.6%. Conversely, the 5-14 cohort declined from 15.4% to 14.2%. Demographic modeling suggests Aldgate's age profile will significantly evolve by 2041. The 85+ cohort is projected to grow by 139%, adding 94 residents to reach 162, while numbers in the 65-74 age range are expected to fall by 20.