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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 3,117 residents, down from 3,184 at the 2021 Census — a change of 67 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 3,086 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
As of Aug 2026, the suburb of Northgate (SA) has an estimated resident count of approximately 3,117, determined through AreaSearch's review of broader ABS population revisions alongside post-Census address validations. This figure represents a contraction of 67 people (2.1%) from the 3,184 people counted during the 2021 Census. The updated assessment stems from an ERP release by the ABS in June 2025 showing a resident population of 3,112, combined with post-Census address validation. With 3,086 persons per square kilometer, the suburb of Northgate (SA) records a population density placing it within the upper quartile of areas evaluated nationally by AreaSearch.
In recent times, population gains have been fueled predominantly by overseas migration, which made up around 71.0% of total growth. Projections for the suburb of Northgate (SA) utilize 2024 ABS/Geoscience Australia SA2-level figures benchmarked to 2022. Where SA2 coverage is absent, as well as for intervals after 2032, population forecasting applies 2023 SA State Government Regional/LGA age cohort projections based on 2021 data, converted to SA2 boundaries via weighted growth aggregation. Over the 16 years running to 2041, aggregated SA2 projections indicate that the suburb of Northgate (SA) will expand by 710 persons, representing an overall rise of 22.6% and tracking above the median growth pace of Australian statistical areas.
Frequently Asked Questions - Population
27 new dwellings have been approved in Northgate (SA) over the past five years, an average of 5 a year. That is 1.7 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
Analysis of ABS residential building approvals by AreaSearch indicates that Northgate has averaged approximately 5 new dwellings approved annually, totaling an estimated 27 residential approvals across the past 5 financial years from FY-21 through FY-25, with none approved so far in FY-25. Because local population numbers have trended downward over the recent timeframe, this pace of residential construction has likely satisfied buyer demand and maintained ample market choice. Additionally, commercial development approvals stand at $105,000 for the current financial year, pointing to very subdued commercial construction activity. Per capita residential construction in Northgate sits 78.0% below the regional average across Greater Adelaide, as well as falling behind broader national trends.
Such constrained building volumes reflect an established, mature urban environment with potential development limitations, which tends to underpin buyer demand and support pricing for established dwellings. The mix of residential building activity consists of 80.0% detached houses and 20.0% medium and high-density housing, preserving traditional low-density suburban neighbourhoods geared toward family living. According to the latest quarterly estimates from AreaSearch, Northgate is projected to add 705 residents by 2041. Given the prevailing restrained trajectory of residential development, future housing delivery may face challenges keeping pace with demographic expansion, which could intensify competition among purchasers and reinforce upward pressure on dwelling prices.
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), worth an estimated $500 million. A further 6 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $934 million. 3 are already under construction and 3 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
Infrastructure investments and urban development initiatives play a pivotal role in shaping local community growth and accessibility. AreaSearch has pinpointed 1 key project anticipated to influence the local area. Among the principal undertakings of local relevance are the Northern Suburbs High School at Eyre, Oakden Rise, Laing St, Northfield, and the Walkleys Road Corridor.
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
Oakden Rise
A 52-hectare master-planned community delivering up to 1,500 new homes in Adelaide's north-east by Villawood Properties in partnership with Renewal SA. The development includes diverse housing formats, a residents' club with a pool and gym, extensive landscaped parklands, and a future village retail centre. Civil earthworks and residential construction are actively progressing across multiple delivery stages.
5 Laing Street Specialist Disability Accommodation
A purpose-built specialist disability accommodation (SDA) residential community comprising five buildings and 60 accessible self-contained apartments. The development is designed to High Physical Support and Fully Accessible NDIS standards, featuring integrated support facilities, landscaped communal areas, and high-efficiency assistive technology. Delivery is spearheaded by Angelo Property Group in collaboration with specialist NDIS care providers.
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.
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
ATO postcode statistics released for financial year 2023 indicate that Northgate taxpayers recorded a median income of $55,847 alongside an average income of $63,050, falling below national benchmarks and comparing to $54,808 (median) and $66,852 (average) across Greater Adelaide. Factoring in Wage Price Index expansion of 10.17% from financial year 2023 to March 2026, prevailing estimates translate to roughly $61,527 for the median and $69,462 for the average. According to the 2021 Census, combined personal, family, and household earnings align near the 71st percentile nationally, with the $1,500 - 2,999 weekly bracket accounting for 38.3% of local earners (1,193 individuals) compared to 31.8% across the wider region.
Furthermore, 31.7% of local households earn high weekly incomes in excess of $3,000, underpinning solid retail spending capacity. Disposable income remains elevated with residents retaining 87.3% of earnings after meeting accommodation costs, situating the neighbourhood in the 7th decile for SEIFA economic advantage.
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
At the latest Census, Northgate's housing stock was composed of 89.2% detached houses and 10.8% other dwellings such as apartments and semi-detached properties, displaying a more house-dominated profile than the 75.2% houses and 24.9% other dwellings recorded across Adelaide metro. Fully owned homes accounted for 30.0% of properties, slightly under Adelaide metro levels, with mortgaged properties comprising 46.8% and rental accommodation making up 23.2%. Monthly mortgage payments stood at a median of $1,742, exceeding the Adelaide metro median of $1,562 but remaining below the national standard of $1,863. Conversely, the median weekly rent of $395 surpassed both the Adelaide metro average of $320 and the Australian 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 constitute 84.4% of total households in the area, encompassing 48.7% couples with children, 25.4% couples without children, and 9.6% single parent families. The remaining 15.6% of households are non-family arrangements, consisting of single-person households at 13.3% and group living situations at 2.1%. The area records an average household size of 3.0 people, exceeding the 2.5 average seen across Greater Adelaide.
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
Northgate demonstrates strong educational credentials, as 36.8% of individuals aged 15+ hold tertiary qualifications, outperforming the SA4 region level of 19.8% and the broader SA benchmark of 25.7%. Bachelor degrees represent the most common award at 24.4%, complemented by 9.6% holding postgraduate qualifications and 2.8% possessing graduate diplomas. Technical and vocational qualifications are also well represented, with 27.6% of residents aged 15+ having attained vocational qualifications, including 10.7% with advanced diplomas and 16.9% holding certificate-level awards. Community participation in learning is substantial, with 33.0% of local residents actively undertaking formal education.
Enrolments are distributed across primary schooling at 12.1%, secondary education at 8.6%, and tertiary study at 6.7%.
Frequently Asked Questions - Education
Schools Detail
Public transport in Northgate (SA) reaches 12 stops on 6 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
Northgate's local public transport network features 12 transit stops offering bus connections across 6 distinct routes, which together deliver 807 weekly passenger trips. Overall transport access is convenient, with residents situated an average of 206 meters from their nearest transit stop. Given the suburb's residential orientation, the vast majority of workers travel outwards, with private motor vehicles serving as the primary commuting choice at 89% and bus transit accounting for 8%. Vehicle ownership sits above the regional average at 1.7 motor vehicles per household, while 11.8% of workers worked from home according to the 2021 Census, potentially reflecting conditions associated with COVID-19.
Across all transit lines, service provision averages 115 daily trips, which translates to roughly 67 departures each week 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
Evaluation by AreaSearch indicates favourable general health metrics in Northgate based on local mortality statistics and condition prevalence, although older and vulnerable demographic segments show higher incidence rates than national benchmarks. Private health insurance membership stands at approximately 52% of the local population (~1,618 people), slightly trailing the average SA2 area rate. Asthma and mental health issues represent the primary chronic conditions locally, impacting 6.3% and 6.8% of the population, respectively, while 75.2% of residents reported having no long-term medical conditions, higher than the 67.9% recorded across Greater Adelaide. The working-age population exhibits strong health with minimal chronic illness.
Seniors aged 65 and over represent 12.8% of residents (398 people), below the 19.1% share found across Greater Adelaide, and while older cohorts face specific health challenges, their relative outcomes remain below the broader population's national ranking.
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
Cultural diversity is pronounced in Northgate, where 36.5% of residents were born overseas and 38.2% use a language other than English in the home. Christianity constitutes the predominant religious affiliation, encompassing 46.2% of the community. In addition, the Other religious category demonstrates notable local representation at 4.6%, compared to 1.8% across Greater Adelaide. Examining parental country of birth, the three most prevalent ancestries in Northgate are English at 19.3% (below the 27.8% regional figure), Australian at 18.9%, and Other at 13.1%. Distinct local concentrations are also apparent across other cultural backgrounds, with Vietnamese accounting for 3.3% against 1.2% regionally, Polish representing 1.9% compared to 1.0% across the region, and Hungarian comprising 0.4% versus 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
Northgate maintains a youthful demographic balance, with 27.3% of the population situated in the 45 - 64 age bracket of middle-aged residents and early retirees, compared to 23.0% across Greater Adelaide, while older cohorts aged 65+ comprise 12.8% locally versus 19.1% across the wider region. As at August 2026, the estimated median age is 38, matching the 2021 Census figure and sitting 1 year below the Greater Adelaide benchmark of 39 from that same Census. Since the Census, the cohort of children and young adults aged 0 - 24 has decreased from 34.2% to an estimated 32.5%.
Long-term projections to 2041 indicate that the 45 - 64 age group will capture the largest nominal expansion, growing by 31% with 267 residents to reach 1,118, while the 65+ retiree cohort will experience the highest proportional increase, surging 38% to reach 551 residents.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Northgate (SA)
9 of 14 data sections on this page were updated within the last 12 months — the newest current to Oct 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) | Aug 2026 2 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 Aug 2026, with the 2021 Census supplying the small-area baseline. | ||
| Age profile | ABS, Geoscience Australia, State governments Annual | Aug 2026 2 months ago headline measures · 2021 Census baseline |
| Age cohorts are re-based to the latest ABS population estimates and state projections, current to Aug 2026. Each cohort is held as a Census baseline and a current estimate. | ||
| Development & approvals | ABS, GNAF Monthly (ABS approvals) | Aug 2026 2 months ago headline measures · Jul 2026 baseline |
| Property sales & rents | Valuer General, Rental Board, ABS Weekly sales, quarterly rents | Oct 2026 this month headline measures · Sep 2026 baseline |
| 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 Oct 2026. | ||
| Infrastructure projects | Infrastructure Australia, State agencies, Local governments Daily | Sep 2026 last month 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 Sep 2026. | ||
| Employment | ABS, DEWR, JSA Quarterly (ABS SALM) | Mar 2026 7 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) | Sep 2026 last month headline measures · 2021 Census baseline |
| Transport | ABS, State Transport Departments Each timetable release | Jul 2026 3 months ago headline measures · 2021 Census baseline |
| Services & amenities | Provider directories, ACECQA Continuous | Sep 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. The headline figure is therefore a current estimate for Aug 2026, not a 2021 count (3,184 at the 2021 Census → 3,117 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 Aug 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.