Northgate (SA)

Northgate has seen population growth performance typically on par with national averages when looking at short and medium term trends

As of November 2025, the estimated population of Northgate (SA) is around 3447, reflecting an increase of 263 people since the 2021 Census. This growth represents an 8.3% increase from the previous population count of 3184. The latest estimate by AreaSearch, based on examination of the ABS ERP data release in June 2024 and address validation since the Census date, is 3400 residents. This results in a density ratio of approximately 3412 persons per square kilometer, placing Northgate in the upper quartile relative to national locations assessed by AreaSearch. The suburb's population growth rate of 8.3% exceeded both the state average (7.1%) and metropolitan area growth rates. Overseas migration contributed significantly to this growth, accounting for approximately 71.0% of overall population gains during recent periods.

For projections, AreaSearch adopts ABS/Geoscience Australia data released in 2024 using a base year of 2022 for each SA2 area. Post-2032 projections for areas not covered by this data use the SA State Government's Regional/LGA projections, adjusted employing weighted aggregation methods from LGA to SA2 levels. Based on these projections, Northgate is expected to experience above median population growth, with an anticipated increase of 843 persons by 2041, representing a total increase of 23.1% over the 17-year period.

Recent residential development output has been above average within Northgate when compared nationally

AreaSearch analysis of ABS building approval numbers shows Northgate has received approximately 15 dwelling approvals annually over the past five financial years, totalling around 78 homes. As of FY26, six approvals have been recorded. On average, about 5.2 people move to the area per year for each dwelling built between FY21 and FY25, indicating demand significantly exceeds supply.

New properties are constructed at an average value of $402,000. Compared to Greater Adelaide, Northgate records around 56% of building activity per person, placing it among the 62nd percentile nationally. Building activity comprises approximately 84.0% detached houses and 16.0% medium and high-density housing, maintaining the area's suburban character focused on family homes.

With around 232 people per approval, Northgate reflects a transitioning market. According to AreaSearch's latest quarterly estimate, Northgate is expected to grow by approximately 798 residents by 2041, with building activity keeping pace with growth projections. However, increased competition among buyers may be anticipated as the population grows.

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

Changes in local infrastructure significantly impact an area's performance. AreaSearch has identified one major project likely affecting this region. Key projects include Northern Suburbs High School at Eyre, Oakden Rise, Laing Street Northfield, and Walkleys Road Corridor. The following list details those expected to have the most relevance.

Professional plan users can use the search below to filter and access additional projects.

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.

The exceptional employment performance in Northgate places it among Australia's strongest labour markets

Northgate has an educated workforce with prominent representation in essential services sectors. Its unemployment rate is 0.8% and it saw a 1.3% employment growth over the past year, according to AreaSearch's statistical area data aggregation.

As of June 2025, 1,904 residents are employed while the unemployment rate is 3.2% lower than Greater Adelaide's rate of 4.0%. Workforce participation stands at 70.6%, exceeding Greater Adelaide's 61.7%. Key industries for employment among residents include health care & social assistance, education & training, and public administration & safety, with the latter showing a notable concentration at 1.4 times the regional average. Retail trade has limited presence with 7.5% employment compared to the regional average of 10.0%.

The area appears to offer limited local employment opportunities based on Census working population vs resident population comparison. Between June 2024 and June 2025, employment increased by 1.3%, labour force grew by 1.1%, leading to a 0.2 percentage point decrease in unemployment rate. In contrast, Greater Adelaide saw employment growth of 2.1% and labour force growth of 2.1%, with a marginal rise in unemployment. Jobs and Skills Australia's national employment forecasts from Sep-22 indicate potential future demand within Northgate. These projections suggest national employment will expand by 6.6% over five years and 13.7% over ten years, with varying growth rates across industry sectors. Applying these projections to Northgate's employment mix suggests local employment should increase by 6.8% over five years and 14.1% over ten years, though this is a simple weighting extrapolation for illustrative purposes and does not account for localised population projections.

The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis

AreaSearch's latest postcode level ATO data for financial year 2022 indicates that Northgate has a median income of $55,847 and an average income of $63,050. This is lower than the national averages of $52,592 (median) and $64,886 (average) for Greater Adelaide. By September 2025, adjusted for Wage Price Index growth of 12.83%, median income in Northgate is estimated to be approximately $63,012, and average income around $71,139. Census data shows that incomes in Northgate cluster around the 71st percentile nationally. Income distribution reveals that 38.3% of locals (1,320 people) earn between $1,500 - 2,999 per week, similar to the broader area where 31.8% fall into this category. Northgate demonstrates affluence with 31.7% earning over $3,000 per week. After housing costs, residents retain 87.3% of their income, reflecting strong purchasing power. The area's SEIFA income ranking places it in the 7th decile.

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

Northgate's dwelling structure, as per the latest Census, consisted of 89.2% houses and 10.8% other dwellings. In comparison, Adelaide metro had 74.6% houses and 25.4% other dwellings. Home ownership in Northgate was at 30.0%, with mortgaged dwellings at 46.8% and rented ones at 23.2%. The median monthly mortgage repayment in the area was $1,742, higher than Adelaide metro's average of $1,603. The median weekly rent figure for Northgate was $395, compared to Adelaide metro's $320. Nationally, Northgate's mortgage repayments were lower than the Australian average of $1,863, while rents exceeded the national figure of $375.

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

Family households account for 84.4% of all households, consisting of 48.7% couples with children, 25.4% couples without children, and 9.6% single parent families. Non-family households constitute the remaining 15.6%, with lone person households at 13.3% and group households comprising 2.1% of the total. The median household size is 3.0 people, which is larger than the Greater Adelaide average of 2.5.

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

Northgate's educational attainment is notably higher than broader benchmarks. Among residents aged 15+, 36.8% hold university qualifications, compared to 19.8% in the SA4 region and 25.7% in South Australia overall. Bachelor degrees are most prevalent at 24.4%, followed by postgraduate qualifications (9.6%) and graduate diplomas (2.8%). Vocational credentials are also common, with 27.6% of residents holding them – advanced diplomas at 10.7% and certificates at 16.9%.

Educational participation is high, with 33.0% of residents currently enrolled in formal education: 12.1% in primary, 8.6% in secondary, and 6.7% in tertiary education. Cedar College serves Northgate, enrolling 885 students as of a certain date. The area has above-average socio-educational conditions (ICSEA score: 1088). All schools offer integrated K-12 education for academic continuity. Northgate functions as an education hub with 25.7 school places per 100 residents, significantly higher than the regional average of 11.1, attracting students from surrounding communities.

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

Northgate has 12 active public transport stops, all of which are bus stops. These stops are served by six different routes that together facilitate 807 weekly passenger trips. The transport accessibility in the area is rated as good, with residents typically located 206 meters from their nearest transport stop.

On average, there are 115 trips per day across all routes, which equates to approximately 67 weekly trips per individual stop.

Northgate's residents are extremely healthy with younger cohorts in particular seeing very low prevalence of common health conditions

Analysis shows strong health performance in Northgate, particularly among younger cohorts with low prevalence of common conditions. Private health cover is high at approximately 52%, compared to Greater Adelaide's 48.3%.

Common medical conditions are mental health issues (6.8%) and asthma (6.3%), while 75.2% report no medical ailments, slightly higher than Greater Adelaide's 72.8%. The area has a senior population of 13.0%, totaling 448 people. Health outcomes among seniors require more attention compared to the broader population.

Northgate is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Northgate has a high level of cultural diversity, with 36.5% of its population born overseas and 38.2% speaking a language other than English at home. Christianity is the predominant religion in Northgate, comprising 46.2% of its population. Notably, the category 'Other' makes up 4.6% of Northgate's population, slightly higher than the regional average of 5.3%.

In terms of ancestry, the top three groups are English at 19.3%, Australian at 18.9%, and Other at 13.1%, which is lower than the Greater Adelaide average of 18.2%. Some ethnic groups have notable representation in Northgate: Polish at 1.9% (regional average 1.1%), Vietnamese at 3.3% (regional average 2.2%), and Hungarian at 0.4% (regional average 0.3%).

Northgate's population aligns closely with national norms in age terms

Northgate has a median age of 38, nearly matching Greater Adelaide's figure of 39 and Australia's median age of 38. Compared to the Greater Adelaide average, Northgate has an over-representation of the 5-14 age cohort (15.4%) and an under-representation of the 25-34 age group (9.8%). Between 2021 and present, the 35-44 age group grew from 16.0% to 17.1%, while the 25-34 cohort declined from 11.0% to 9.8%. By 2041, demographic modeling suggests Northgate's age profile will significantly change, with the 45-54 age cohort projected to expand by 212 people (40%), growing from 527 to 740.