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This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.
SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.
Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
est. as @ -- *
2021 Census | -- people
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Aldgate has an estimated 3,577 residents, up from 3,471 at the 2021 Census — a change of 106 people, or 3.1%. That puts 425 residents on each square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.
Detail
Analysis of ABS population figures for the surrounding region, combined with address records verified by AreaSearch since the Census, indicates the population of the suburb of Aldgate is approximately 3,577 as of May 2026. This represents an addition of 106 people (3.1%) relative to the 2021 Census, which recorded 3,471 individuals. This shift is calculated from the resident population of 3,577, estimated by AreaSearch using the latest ABS ERP release from June 2025 alongside 4 validated new addresses added after the Census. This population size results in a density of 425 persons per square kilometer, which offers plenty of space per resident and opportunity for subsequent expansion.
Overseas migration was the primary driver of population growth, accounting for roughly 71.0% of the total population gains in recent times. AreaSearch utilizes projections from the ABS and Geoscience Australia for individual SA2 zones, published in 2024 using 2022 as the baseline. For SA2 zones lacking this data, and for periods after 2032, regional and LGA projections by age bracket from the SA State Government (released in 2023 and utilizing 2021 data) are applied, adjusted via weighted aggregation of growth rates from the LGA to the SA2 level. In terms of future demographics, the suburb of Aldgate is projected to experience growth slightly below the national median, with aggregated SA2 projections estimating an increase of 273 residents by 2041, representing a total expansion of 7.6% over the 16 years.
Frequently Asked Questions - Population
21 new dwellings have been approved in Aldgate over the past five years, an average of 4 a year. That is 1.2 approvals per 1,000 residents. Approvals are currently running at an annualised 7, running ahead of that longer-run average. Figures come from ABS building approvals aggregated to this Suburb (SAL) boundary and are updated monthly as the ABS releases them.
Detail
According to AreaSearch evaluations of ABS building permits distributed from statistical data, the suburb of Aldgate has recorded an average of roughly 4 new home approvals annually, with approximately 21 residential approvals over the 5 financial years from FY-21 to FY-25 and 7 during the current FY-26. Because an average of 3.8 individuals moved to the area for every constructed home during the 5 financial years from FY-21 to FY-25, demand is outpacing supply, which generally drives up prices and intensifies buyer competition, while new dwellings carry an average build value of $651,000, indicating developers are targeting the high-end residential sector.
Furthermore, commercial building permits worth $5.2 million were registered during the current financial year, highlighting the residential focus of the locality. Relative to Greater Adelaide, the suburb of Aldgate displays significantly lower construction volumes, sitting 89.0% below the metropolitan average per capita. This constrained supply generally underpins demand and supports values for pre-existing houses. This rate is similarly below the national benchmark, reflecting a mature market and highlighting potential planning constraints. Furthermore, all recent building activity has focused on detached residences, preserving the low-density landscape and providing spacious homes geared toward families. A ratio of 892 people for every residential permit highlights the quiet, low-scale nature of local construction activity. Future forecasts indicate the suburb of Aldgate will add 273 residents by 2041, based on the latest quarterly estimate from AreaSearch. If current building rates do not accelerate, housing supply may fail to match population growth, potentially worsening buyer competition and supporting upward price movements.
Frequently Asked Questions - Development
Development applications around Aldgate
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| Lodged | Address | Description | Type | Distance | Status |
|---|
SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
AreaSearch tracks 2 current infrastructure and development projects close to Aldgate, worth an estimated $1 billion. The pipeline spans transport & logistics. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.
Detail
Local infrastructure projects, major works, and planning policies play a major role in regional performance. AreaSearch has identified no projects likely to influence this location. Major projects in the broader region include the South Eastern Freeway Upgrade, Adelaide Public Transport Capacity and Access, Adelaide's Inner And Outer Ring Route Capacity Improvements, and the New Mount Barker Hospital, with relevant details provided below.
Professional plan users can use the search below to filter and access additional projects.
INFRASTRUCTURE SEARCH
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.
Frequently Asked Questions - Infrastructure
Adelaide's Inner And Outer Ring Route Capacity Improvements
Enhancement of Adelaide's Inner and Outer Ring Routes to alleviate congestion, aiming for integrated urban mobility and addressing impacts from population growth, economic activity, and travel demand.
Adelaide Public Transport Capacity and Access
A multi-year state-led initiative to expand the capacity and reach of Adelaide's public transport network. Key focus areas include the electrification of the Outer Harbor and Belair rail lines, upgrades to the Adelaide Railway Station hub to resolve capacity bottlenecks, and the implementation of the City of Adelaide Integrated Transport Strategy (ITS) endorsed in July 2025. The program aims to support projected growth of 670,000 residents by 2051 through enhanced service frequencies, digital signaling (ETCS), and improved first/last mile access within the CBD.
1,960 residents of Aldgate are employed, from a labour force of 2,005. Unemployment sits at 2.3%, with participation at 68.4%. Weighted for its industry mix, the area's sectors are forecast to grow about 7.2% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 2,680, about 75% of the resident population, so more people leave the area for work than travel in. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.
Detail
The suburb of Aldgate has a highly educated workforce with a strong concentration of professionals, an unemployment rate of only 2.3%, and an estimated job growth of 4.6% over the last year, based on AreaSearch compilations of statistical data. As of March 2026, there are 1,960 working residents, and the unemployment rate is 1.5% below the Greater Adelaide average of 3.8%, while participation in the labor force matches the metropolitan average of 66.6%. Census data indicates a moderate 21.2% of the workforce worked from home, though this figure reflects the influence of pandemic restrictions.
The primary sectors employing local residents are health care & social assistance, professional & technical, and education & training. The suburb of Aldgate shows a notable concentration in professional & technical services, with its employment share reaching 1.8 times the metropolitan average. Conversely, manufacturing is underrepresented, employing only 3.7% of the local workforce compared to 7.0% across Greater Adelaide. The residential character of the area results in limited local employment opportunities, as shown by comparing the count of Census working residents to the total resident population. Based on AreaSearch analysis of SALM and ABS data for the broader statistical area, employment rose by 4.6% and the labor force grew by 4.6% over the 12 months ending March 2026, leading to a 0.2 percentage point increase in the unemployment rate. Over the same period, Greater Adelaide recorded employment growth of 4.2% and labor force growth of 4.0%, alongside a 0.2 percentage point decrease in unemployment. National employment forecasts from May-25 by Jobs and Skills Australia provide further context on future demand in the suburb of Aldgate. These five and ten-year forecasts have been applied to the local workforce mix to project growth. While national employment is expected to grow by 6.6% over five years and 13.7% over ten years, trends vary across different industries. Applying these sector-specific forecasts to the local profile suggests employment in the suburb of Aldgate could grow by 7.2% over five years and 14.6% over ten years, using a simple weighted extrapolation that does not incorporate local population forecasts.
Frequently Asked Questions - Employment
Median household income in Aldgate is $2,561 a week (about $133,000 a year), with median personal income at $995 a week. ATO records put median taxable income at $60,897 a year against an average of $86,199. The average runs 42% above the median, a wider spread than most areas and a sign of a concentrated group of high earners. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.
Detail
The suburb of Aldgate records a median taxpayer income of $60,897 and an average of $86,199, according to postcode-level ATO data compiled by AreaSearch for the 2023 financial year. These figures are very high on a national scale, comparing to a median of $54,808 and an average of $66,852 across Greater Adelaide. Adjusting for a Wage Price Index increase of 10.17% since the 2023 financial year, current estimates point to approximately $67,090 for median and $94,965 for average incomes as of March 2026. According to Census data, household, family, and individual incomes are all high, placing between the 78th and 91st percentiles nationally.
The largest earnings bracket consists of 29.2% of residents (1,044 people) earning between $1,500 and $2,999 weekly, which is similar to the wider region where this group accounts for 31.8%. High affluence is evident, with 41.8% of taxpayers earning more than $3,000 per week, which helps support local premium retail and service businesses. After paying for housing, residents keep 89.4% of their income, indicating high purchasing power, and the area ranks in the 9th decile on the SEIFA index.
Frequently Asked Questions - Income
Aldgate had 1,192 occupied dwellings at the 2021 Census, 100% detached houses and 0% apartments. 48% are owned with a mortgage, 6% rented and 46% owned outright. At that Census the median rent was $500 a week and the median mortgage repayment $2,200 a month. Rent absorbs 19.5% of household income here and mortgage repayments 19.8%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
The housing stock in the suburb of Aldgate at the time of the latest Census consisted of 100.0% detached houses and no other dwelling types, such as apartments, semi-detached, or alternative housing formats, compared to the Adelaide metropolitan breakdown of 75.2% detached houses and 24.9% other dwellings. Homeownership was highly prevalent at 46.1%, with the remaining properties occupied by residents with a mortgage (47.9%) or renting (5.9%). The median monthly mortgage payment was $2,200, which is significantly higher than the metropolitan Adelaide average of $1,562, while the median weekly rent stood at $500, compared to the regional average of $320.
Nationally, mortgage payments in the suburb of Aldgate exceed the Australian average of $1,863, and weekly rents are also well above the national median of $375.
Frequently Asked Questions - Housing
Aldgate counted 1,192 households at the 2021 Census, averaging 2.8 people each. 43% are couples with children, more than in 86% of areas nationally, against 34% couples without children. 14% of households are people living alone, and families average 1.7 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
Families make up the majority of households at 85.4%, consisting of couples with children at 43.2%, couples without children at 33.6%, and single-parent households at 8.4%. The remaining 14.6% are non-family households, which consist of single-person households at 13.5% and group households at 0.5%. The median household size is 2.8 people, which is larger than the Greater Adelaide average of 2.5.
Frequently Asked Questions - Households
48.9% of adults in Aldgate hold a university qualification, including 30.9% with a bachelor degree and 12.3% with postgraduate qualifications, higher than 87% of areas nationally. A further 12.6% hold a vocational qualification. 3 schools serve the area, with 380 enrolment places and an average ICSEA of 1,098 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.
Detail
Educational attainment in the suburb of Aldgate is high compared to broader averages, with 48.9% of residents aged 15 and over holding a university degree, compared to 25.7% in South Australia and 28.9% across Greater Adelaide. This concentration of degrees positions the population well for knowledge-intensive roles. Bachelor degrees are the most common qualification at 30.9%, followed by postgraduate degrees at 12.3% and graduate diplomas at 5.7%. Vocational education is held by 23.6% of residents aged 15 and over, with 11.0% holding advanced diplomas and 12.6% holding certificates. Participation in education is high, with 30.5% of the population enrolled in an educational institution.
This includes 12.1% attending primary school, 9.3% in secondary school, and 5.7% enrolled in tertiary education.
Frequently Asked Questions - Education
Schools Detail
Public transport in Aldgate reaches 20 stops on 23 routes, timetabled for about 500 services a week. The typical home sits about 450 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.9 vehicles. Stop and service counts are built from operators' published GTFS timetables and refresh with each timetable release; vehicle ownership is from the 2021 Census.
Detail
Public transport services in the suburb of Aldgate include 20 active bus stops. These stops are served by 23 routes, which provide 503 passenger trips each week. Transport accessibility is moderate, with residents living an average of 453 meters from the nearest stop. The area is primarily residential, and most workers commute out of the suburb, with private cars being the main transport mode at 92% and buses used by 6% of commuters. Vehicle ownership stands at an average of 1.9 cars per household, which is above the metropolitan average.
At the 2021 Census, 21.2% of residents worked from home, which may have been influenced by pandemic conditions. Service frequency across all routes averages 71 trips per day, which is equivalent to approximately 25 weekly trips for each transport stop.
Frequently Asked Questions - Transport
Transport Stops Detail
70.7% of residents in Aldgate report no long-term health condition, a healthier profile than 88% of areas nationally. 3.7% need daily assistance with core activities, and 61.0% hold private health cover. The standardised death rate runs at 3.5 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
Health data shows positive outcomes for the suburb of Aldgate, based on AreaSearch assessments of mortality rates and chronic disease frequency, with low rates of common health issues across all age brackets. Private health insurance is highly prevalent, covering approximately 61% of the population (2,182 people), compared to 52.7% across Greater Adelaide and a national average of 55.7%. Asthma and arthritis are the most common medical conditions, affecting 8.2% and 7.2% of residents respectively, while 70.7% of the population reported no chronic health issues, compared to 67.9% across Greater Adelaide.
Health indicators for residents under 65 are better than average. Residents aged 65 and older make up 22.8% of the population (815 people), which is higher than the Greater Adelaide average of 19.2%. Health profiles for these senior residents are positive, with national comparisons aligning closely with the general population.
Frequently Asked Questions - Health
Aldgate is largely Australian-born, at 81.4% of residents, with 4.1% speaking a language other than English at home. The largest reported ancestries are English (33.9%) and Australian (25.8%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
The suburb of Aldgate has lower cultural diversity metrics than average, with 81.4% of residents born in Australia, 93.9% holding citizenship, and 95.9% speaking only English at home. Christianity is the main religion, practiced by 37.5% of residents. Judaism shows the most notable relative concentration, accounting for 0.1% of the population, which matches the 0.1% average for Greater Adelaide. The top three ancestral backgrounds reported in the suburb of Aldgate are English at 33.9% (higher than the regional average of 27.8%), Australian at 25.8%, and Scottish at 8.9%. There are also differences in other ethnic groups: Polish ancestry is represented at 1.4% (compared to 1.0% regionally), Welsh at 1.0% (compared to 0.6%), and German at 6.8% (compared to 5.1%).
Frequently Asked Questions - Diversity
The median resident of Aldgate is 45, older than 80% of areas nationally. 18.6% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.
Detail
The median age in the suburb of Aldgate is 45 years, which is older than the Greater Adelaide average of 39 years and the national average of 38 years. The 65 to 74 age group is well represented at 13.1% of the population relative to Greater Adelaide, while the 25 to 34 age bracket is less common at 4.2%. Since the 2021 Census, the 15 to 24 age bracket has increased from 11.9% to 14.4%, and the 75 to 84 bracket rose from 5.9% to 7.7%. Conversely, the 25 to 34 age group decreased from 5.3% to 4.2%.
Projections suggest the age structure will change by 2041. The 85 and over cohort is expected to grow by 132%, adding 94 residents to reach a total of 166. Residents aged 65 and over are projected to account for 52% of the overall population growth, highlighting the aging trend. Meanwhile, the 15 to 24 and 0 to 4 age brackets are expected to decrease in size.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Aldgate
9 of 14 data sections on this page were updated within the last 12 months — the newest current to Aug 2026.
Everything is aggregated to the Suburb (SAL) boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.
The ledger — source, cycle and currency by section
| Section | Source & update cycle | Currency |
|---|---|---|
| Updated within the last 12 months 9 sections | ||
| Population | ABS, GNAF, Geoscience Australia Annual (ABS ERP) | May 2026 3 months ago headline measures · 2021 Census baseline |
| Re-based to the ABS Estimated Resident Population (June 2025 release) and updated with new dwellings from GNAF address data. Current to May 2026, with the 2021 Census supplying the small-area baseline. | ||
| Age profile | ABS, Geoscience Australia, State governments Annual | May 2026 3 months ago headline measures · 2021 Census baseline |
| Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate. | ||
| Development & approvals | ABS, GNAF Monthly (ABS approvals) | Jun 2026 2 months ago headline measures · May 2026 baseline |
| Property sales & rents | Valuer General, Rental Board, ABS Weekly sales, quarterly rents | Aug 2026 this month all 21 measures |
| Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Aug 2026. | ||
| Infrastructure projects | Infrastructure Australia, Local governments Daily | May 2026 3 months ago all 2 projects tracked here |
| Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated May 2026. | ||
| Employment | ABS, DEWR, JSA Quarterly (ABS SALM) | Mar 2026 5 months ago headline measures · 2021 Census baseline |
| Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census. | ||
| Education | ABS, ACARA Annual (ACARA) | Aug 2026 this month headline measures · 2021 Census baseline |
| Transport | ABS, State Transport Departments Each timetable release | Jul 2026 last month headline measures · 2021 Census baseline |
| Services & amenities | Provider directories, ACECQA Continuous | Jul 2026 last month all 14 measures |
| Annual and financial-year sources 2 sections | ||
| Income | ABS, ATO Annual (ATO) | FY 2023 3 years ago headline measures · 2021 Census baseline |
| ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail. | ||
| Health | ABS, ATO Annual | 2024 2 years ago headline measures · 2021 Census baseline |
| Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current. | ||
| Housing | ABS 5-yearly (Census) | 2021 Census next update 2026 all 30 measures |
| Households | ABS 5-yearly (Census) | 2021 Census next update 2026 all 18 measures |
| Cultural diversity | ABS, Geoscience Australia 5-yearly (Census) | 2021 Census next update 2026 all 44 measures |
"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.
How the numbers are built
Population
The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2025 release), and new dwellings built since Census night are counted from address data — 4 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (3,471 at the 2021 Census → 3,577 now). Annual growth rates are compound (CAGR), not simple averages.
Age profile
Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to May 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".
Property sales
Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.
Rents
Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.
Development & infrastructure
Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.
Employment & income
Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.
Education, transport & amenities
School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.
Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.
Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.
Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (SAL40008). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.