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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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Northgate (SA) has an estimated 3,118 residents, down from 3,184 at the 2021 Census — a change of 66 people, or 2.1%. The population has thinned by an average 0.6% a year over five years, slower than 97% of areas nationally. That puts 3,087 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
According to the analysis of demographics done by AreaSearch using ABS releases for the surrounding region and address checking after the Census, the suburb of Northgate (SA) has an estimated resident count of 3,118 in May 2026. This indicates a contraction of 66 people (2.1%) from the 2021 Census, which counted 3,184 residents. The figure is derived from the resident count of 3,112, calculated by AreaSearch using the ABS ERP release from June 2025 alongside address verification following the Census. The density corresponds to 3,087 persons per square kilometer, which ranks in the top quartile of all Australian locations analyzed.
The primary driver of growth in the area was overseas migration, representing approximately 71.0% of the total demographic gains during recent timeframes. Projections from the ABS and Geoscience Australia released in 2024 with a 2022 baseline are utilized for SA2 zones. For locations missing this data and for periods after 2032, population forecasts by age bracket from the SA State Government released in 2023 utilizing 2021 data are used, adjusted by aggregating growth projections from the LGA to SA2 level. Based on these projections, the suburb of Northgate (SA) is anticipated to experience population expansion above the national median, increasing by 716 residents by 2041 and representing an overall growth of 22.8% over the 16 years.
Frequently Asked Questions - Population
49 new dwellings have been approved in Northgate (SA) over the past five years, an average of 9 a year. That is 3.1 approvals per 1,000 residents. Few approvals have been recorded in the most recent months, well below the longer-run average; the latest ABS periods are still being reported. 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 approval records mapped to statistical areas, Northgate has averaged approximately 9 residential approvals annually. This totals 49 homes approved across the past 5 financial years from FY-21 to FY-25, with no approvals recorded so far in FY-26. Given the local population contraction, this level of development has been relatively sufficient, which benefits prospective buyers. Additionally, commercial development has been extremely quiet, with only $105,000 in commercial approvals registered during this financial year. Building activity in Northgate is significantly quieter than in Greater Adelaide, sitting 64.0% below the regional average per capita.
This lack of new inventory generally supports demand and asset values for established dwellings. The volume of building is also below the national benchmark, indicating the mature status of the suburb and potential planning limitations. The mix of new construction consists of 83.0% detached houses and 17.0% semi-detached properties or units, preserving the classic low-density suburban profile and focusing on family-oriented dwellings for buyers wanting extra space. Long-term projections indicate that Northgate is set to add 710 residents by 2041, based on the latest quarterly modeling. If building numbers do not accelerate, new supply is unlikely to match this influx of residents, which could intensify competition among buyers and underpin stronger capital appreciation.
Frequently Asked Questions - Development
Development applications around Northgate (SA)
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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 one current infrastructure or development project inside Northgate (SA). A further 6 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $406 million. 3 are already under construction and 2 are due for completion within three years. The pipeline spans communities, residential development and 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
Development of infrastructure, major construction, and planning decisions are key drivers of local performance. AreaSearch has identified one project that is expected to influence the local area. The most relevant initiatives for residents include the Northern Suburbs High School at Eyre, Oakden Rise, Laing St in Northfield, and the Walkleys Road Corridor, with specific details of these projects listed 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
The Parks (Enfield) Residential Estate
Master-planned residential community by AVJennings (now part of AVID Property Group) delivering over 300 homes including townhouses and apartments across multiple stages, with parks, pathways and direct connection to the Enfield Community Centre in the City of Port Adelaide Enfield.
Oakden Rise
A 52-hectare master-planned community that will deliver up to 1,500 new homes in Adelaide's north-east. The development will feature a variety of housing options, a new community facility with a pool and gym, extensive parks, and a village centre.
Laing St, Northfield
Five-building accessible residential project with 60 units designed for people with disabilities. Supported through NDIS.
Enfield Memorial Park - Evergreen Community Precinct & Redevelopment
Major redevelopment of Enfield Memorial Park anchored by the $25 million Evergreen Community Precinct, a multi-function building designed by Walter Brooke & Associates featuring function spaces, reflection rooms, retail outlets and a cafe. The new crematorium meets European environmental standards, reducing emissions by up to 90%. The precinct opened in 2023 and won multiple AIA SA Chapter architecture awards. Ongoing works include new interment areas, a Mausoleum Precinct expansion, and landscaping upgrades across the 50-year masterplan for South Australia's largest inner-northern open green space.
Klemzig Interchange Upgrade
Major upgrade of the Klemzig O-Bahn guided busway interchange including new sheltered waiting areas, improved accessibility, real-time passenger information, and enhanced park 'n' ride facilities, completed in 2021.
Lochiel Park
Completed 15 hectare sustainable residential village developed by Renewal SA on the former Lochiel Park education site, about 8 km from the Adelaide CBD. The project created an award-winning green village with over 100 dwellings, parkland, wetlands, recycled stormwater systems, solar technologies and high-efficiency homes, including South Australia's first zero-carbon home.
Northern Suburbs High School at Eyre
State-of-the-art Year 7-12 school with capacity for 1,300 students on a 10-hectare site at the corner of Andrews and Petherton Roads, Eyre. Construction is now underway, with the school due to open at the start of 2028. Facilities will include contemporary learning spaces across design, arts, technology and science, a health, fitness and performing arts centre, sports fields and hardcourts. Architecture is a collaboration between Swanbury Penglase Architects and Brown Falconer. The project supports the Greater Adelaide Regional Plan (GARP), which details 82,000 new homes to be built in the Outer North over the next 30 years, and forms part of the Malinauskas Government's 20-Year Infrastructure Plan for Public Education and Care.
Median household income in Northgate (SA) is $2,207 a week (about $115,000 a year), with median personal income at $881 a week. ATO records put median taxable income at $55,847 a year against an average of $63,050. 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
Tax data from the ATO for financial year 2023, compiled by AreaSearch, shows that income levels in Northgate are below the national average. Taxpayers in the suburb earn a median of $55,847 and an average of $63,050, compared to the Greater Adelaide figures of $54,808 and $66,852. Factoring in Wage Price Index growth of 10.17% since financial year 2023, current estimates for March 2026 stand at approximately $61,527 for the median and $69,462 for the average. In the 2021 Census, local household, family, and individual incomes fell around the 71st percentile nationally.
The distribution shows 38.3% of the population (1,194 individuals) earning between $1,500 and $2,999, mirroring the wider regional pattern where 31.8% fall into this bracket. Economic capacity is demonstrated by the 31.7% of households with high weekly incomes above $3,000, which supports local commercial spending. Residents retain 87.3% of their earnings after housing expenses, indicating good disposable income, and the suburb sits in the 7th decile for the SEIFA income index.
Frequently Asked Questions - Income
Northgate (SA) had 1,041 occupied dwellings at the 2021 Census, 89% detached houses and 0% apartments. 47% are owned with a mortgage, 23% rented and 30% owned outright. At that Census the median rent was $395 a week and the median mortgage repayment $1,742 a month. Rent absorbs 17.9% of household income here and mortgage repayments 18.2%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
Data from the latest Census shows that the housing stock in Northgate consists of 89.2% detached houses and 10.8% other options such as townhouses and units, compared to Adelaide metro where houses make up 75.2% and other options comprise 24.9%. Home ownership rates in Northgate lag the metropolitan average at 30.0%, with the remaining properties occupied by residents with mortgages (46.8%) or tenants (23.2%). The median mortgage payment of $1,742 per month is substantially higher than the Adelaide metro benchmark of $1,562, while the median weekly rent of $395 also exceeds the metro figure of $320.
Nationally, mortgage costs in Northgate are lower than the Australian median of $1,863, whereas rental costs exceed the national benchmark of $375.
Frequently Asked Questions - Housing
Northgate (SA) counted 1,041 households at the 2021 Census, averaging 3.0 people each. 49% are couples with children, more than in 94% of areas nationally, against 25% couples without children. 13% of households are people living alone, and families average 1.5 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
Families make up the vast majority of households at 84.4%, consisting of couples with children at 48.7%, couples without children at 25.4%, and single parents at 9.6%. Non-family households comprise the remaining 15.6%, which includes single-person households at 13.3% and group living situations at 2.1%. The median household occupancy of 3.0 people is larger than the Greater Adelaide median of 2.5.
Frequently Asked Questions - Households
36.8% of adults in Northgate (SA) hold a university qualification, including 24.4% with a bachelor degree and 9.6% with postgraduate qualifications, higher than 80% of areas nationally. A further 16.9% hold a vocational qualification. 1 school serves the area, with 885 enrolment places and an average ICSEA of 1,088 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
Attainment levels in Northgate are significantly higher than the broader region, with 36.8% of residents aged 15 and over holding a university degree, compared to 19.8% in the SA4 region and 25.7% across SA. This high concentration of tertiary education positions the community well for professional services and knowledge sector roles. Bachelor degrees are the most common at 24.4%, followed by postgraduate studies at 9.6% and graduate diplomas at 2.8%. Vocational education is also well represented, with 27.6% of residents aged 15 and over holding technical qualifications, split between advanced diplomas at 10.7% and certificates at 16.9%.
Enrolment rates are exceptionally high, with 33.0% of the population participating in formal study. This cohort comprises 12.1% attending primary schools, 8.6% in secondary schools, and 6.7% enrolled in higher education or university courses.
Frequently Asked Questions - Education
Schools Detail
Public transport in Northgate (SA) reaches 12 stops on 7 routes, timetabled for about 810 services a week. The typical home sits about 210 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.7 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 transit networks include 12 stops operating inside Northgate, which are serviced by a combination of buses. These stops accommodate 7 distinct routes that deliver a total of 809 passenger journeys weekly. Accessibility is favorable, with the typical resident living 206 meters from the nearest stop. Due to the suburban character of the area, most workers travel out of the suburb, with private cars being the primary mode of travel at 89% and buses at 8%. Motor vehicle ownership stands at 1.7 cars per household, which is higher than the regional benchmark.
A relatively low proportion of the workforce (11.8%) worked from home, based on 2021 Census data collected during pandemic conditions. Bus routes provide an average of 115 services daily, which translates to approximately 67 weekly services for each individual transit stop.
Frequently Asked Questions - Transport
Transport Stops Detail
75.2% of residents in Northgate (SA) report no long-term health condition. 5.9% need daily assistance with core activities, and 51.9% hold private health cover. The standardised death rate runs at 4.2 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
The suburb displays favorable health outcomes overall according to AreaSearch analysis of mortality rates and chronic illnesses. Although chronic condition rates are low within the broader population, they exceed national benchmarks among older, vulnerable demographics. The rate of private health insurance coverage is slightly below the SA2 average, sitting at approximately 52% of the population, which equates to about 1,619 people. Mental health conditions and asthma are the most prevalent diagnoses, affecting 6.8 and 6.3% of the community respectively, whereas 75.2% of residents reported having no long-term health issues, compared to 67.9% across Greater Adelaide.
The working-age cohort is generally very healthy with a low rate of chronic illness. Residents aged 65 and over make up 13.0% of the population (405 people), which is lower than the Greater Adelaide figure of 19.2%. Seniors in the area face some health difficulties, with their outcomes ranking lower nationally than the general local demographic.
Frequently Asked Questions - Health
36.5% of Northgate (SA) residents were born overseas and 38.2% speak a language other than English at home, more culturally diverse than 80% of areas nationally. The largest reported ancestries are English (19.3%) and Australian (18.9%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
The area displays high levels of multiculturalism, with 36.5% of the population born outside Australia and 38.2% speaking a non-English language at home. Christianity is the primary religious affiliation, accounting for 46.2% of the community. The most distinct variance is in the category of Other religions, which accounts for 4.6% of residents compared to 1.8% across Greater Adelaide. Looking at ancestral background, the three largest groups in Northgate are English at 19.3%, which is much lower than the metropolitan average of 27.8%, Australian at 18.9%, and Other at 13.1%. Notable demographic variations are also present in other heritages: Polish ancestry stands at 1.9% (compared to 1.0% across the region), Vietnamese represents 3.3% (compared to 1.2% regionally), and Hungarian is recorded at 0.4% (compared to 0.3% regionally).
Frequently Asked Questions - Diversity
The median resident of Northgate (SA) is 38. 21.2% 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 Northgate is 38, which is very close to the Greater Adelaide average of 39 and identical to the national average of 38. The 5 to 14 age group is highly represented at 15.5% of the local population, whereas the 25 to 34 age bracket is under-represented at 9.6%. Since 2021, the 35 to 44 age cohort has increased from 16.0% to 17.5% of the population, while the 25 to 34 bracket has fallen from 11.0% to 9.6%. Long-term projections suggest the demographic structure will change by 2041, with the 45 to 54 cohort expected to grow by 189 people (39%), rising from 486 to 676.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Northgate (SA)
8 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 8 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. | ||
| 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 3 sections | ||
| Infrastructure projects | Infrastructure Australia, State agencies, Local governments Daily | Jul 2025 about a year ago all 1 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 Jul 2025. | ||
| 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. The headline figure is therefore a current estimate for May 2026, not a 2021 count (3,184 at the 2021 Census → 3,118 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 (SAL41051). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.