Northbridge (NSW)

An assessment of population growth drivers in Northbridge reveals an overall ranking slightly below national averages considering recent, and medium term trends

As of Feb 2026, the estimated population of the suburb of Northbridge (NSW) is around 6,415, reflecting a decrease of 78 people since the 2021 Census. This decline represents a 1.2% change from the previous population count of 6,493. The current resident population estimate of 6,399 by AreaSearch is based on an analysis of the latest ERP data release by the ABS in June 2024 and validation of ten new addresses since the Census date. This results in a population density ratio of 2,393 persons per square kilometer, placing Northbridge in the upper quartile relative to other locations assessed by AreaSearch. Overseas migration was the primary driver of population growth in recent periods.

AreaSearch's projections for Northbridge are based on ABS/Geoscience Australia data released in 2024 with a base year of 2022, and NSW State Government SA2 level projections released in 2022 with a base year of 2021, extended to cover years 2032 to 2041. According to these projections, the suburb's population is expected to decline by 60 persons by 2041, while specific age cohorts are anticipated to grow, notably the 85 and over age group which is projected to expand by 311 people.

AreaSearch assessment of residential development drivers sees a low level of activity in Northbridge, placing the area among the bottom 25% of areas assessed nationally

AreaSearch analysis of ABS building approval numbers in Northbridge shows approximately 8 residential properties granted approval per year. Over the past five financial years, from FY21 to FY25, around 40 homes were approved, with a further 5 approved so far in FY26.

Despite population decline during this period, development activity has been adequate relative to population changes, which could benefit buyers. The average construction cost of new properties is $1,352,000, indicating focus on the premium market and high-end developments. Compared to Greater Sydney, Northbridge shows significantly reduced construction, 80.0% below the regional average per person. This constrained new construction typically reinforces demand and pricing for existing properties, although development activity has increased recently. Nationally, Northbridge's construction level is also lower, suggesting market maturity and possible development constraints.

Recent construction in Northbridge comprises 70.0% standalone homes and 30.0% medium to high-density housing, offering a mix of attached housing types across various price ranges. With around 340 people per dwelling approval, Northbridge exhibits characteristics of a low-density area. Given stable or declining population forecasts, Northbridge may experience less housing pressure, creating favourable conditions for buyers.

Northbridge has very high levels of nearby infrastructure activity, ranking in the top 10% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified five projects likely to affect this region. Key initiatives include the upgrade of Northbridge Public School, Flo Northbridge by WINIM, Cammeray Golf Club Redevelopment, and Airena St Leonards. The following details those expected to be most relevant.

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

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Employment conditions in Northbridge demonstrate strong performance, ranking among the top 35% of areas assessed nationally

Northbridge has a highly educated workforce with strong representation in professional services. Its unemployment rate is 2.7%. Over the past year, estimated employment growth was 0.7%.

As of December 2025, 3,243 residents are employed while the unemployment rate is 1.5% below Greater Sydney's rate of 4.2%. Workforce participation in Northbridge lags at 63.1%, compared to Greater Sydney's 70.2%. According to Census responses, 64.7% of residents work from home, though Covid-19 lockdown impacts should be considered. Leading employment industries include professional & technical services, finance & insurance, and health care & social assistance.

Finance & insurance shows strong specialization with an employment share of 2.2 times the regional level, while construction has lower representation at 4.8% compared to the regional average of 8.6%. Employment opportunities appear limited locally, as indicated by the working population vs resident population count. Over the 12 months to December 2025, employment increased by 0.7%, labour force by 1.0%, resulting in a 0.3 percentage point rise in unemployment. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 suggest that Northbridge's employment should increase by 7.6% over five years and 15.1% over ten years, based on industry-specific projections applied to the local employment mix.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

The latest postcode level ATO data from AreaSearch for financial year 2023 shows Northbridge's median income among taxpayers is $77,586, with an average of $182,817. This places Northbridge in the top percentile nationally when compared to Greater Sydney's median of $60,817 and average of $83,003. Based on Wage Price Index growth of 8.86% since financial year 2023, current estimates for Northbridge would be approximately $84,460 (median) and $199,015 (average) as of September 2025. According to the 2021 Census, household, family, and personal incomes in Northbridge rank highly nationally, between the 96th and 99th percentiles. The data indicates that 49.3% of individuals in Northbridge earn over $4000 weekly (3,162 individuals), differing from regional levels where the $1500 - $2999 category is predominant at 30.9%. Higher earners constitute a significant portion with 58.2% exceeding $3000 weekly, reflecting strong purchasing power within the community. After housing costs, residents retain 87.6% of their income, demonstrating robust purchasing power and the area's SEIFA income ranking places it in the 10th decile.

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

In Northbridge, as per the latest Census evaluation, 74.1% of dwellings were houses while 25.8% consisted of other types such as semi-detached homes, apartments, and 'other' dwellings. This is compared to Sydney metropolitan areas which had 55.9% houses and 44.1% other dwellings. Home ownership in Northbridge stood at 49.1%, with mortgaged properties making up 31.0% and rented ones 19.9%. The median monthly mortgage repayment was $4,649, significantly higher than the Sydney metro average of $2,427. The median weekly rent figure in Northbridge was recorded at $740 compared to Sydney's $470. Nationally, Northbridge's mortgage repayments were substantially higher than the Australian average of $1,863 while rents were significantly above the national figure of $375.

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

Family households account for 80.5% of all households, including 46.3% couples with children, 25.7% couples without children, and 7.5% single parent families. Non-family households constitute the remaining 19.5%, with lone person households at 18.5% and group households comprising 1.2% of the total. The median household size is 2.9 people, which is larger than the Greater Sydney average of 2.7.

Northbridge demonstrates exceptional educational outcomes, ranking among the top 5% of areas nationally based on AreaSearch's comprehensive analysis of qualification and performance metrics

Northbridge has a notably higher level of educational attainment than broader benchmarks. Among residents aged fifteen and above, 56.9% have university qualifications, compared to 30.4% nationally and 32.2% in New South Wales. This high proportion positions the area favourably for knowledge-based opportunities. Bachelor degrees are the most prevalent at 35.9%, followed by postgraduate qualifications (17.2%) and graduate diplomas (3.8%).

Vocational pathways account for 16.7% of qualifications among those aged fifteen and above, with advanced diplomas at 9.7% and certificates at 7.0%. Educational participation is notably high in Northbridge, with 33.8% of residents currently enrolled in formal education. This includes 11.7% in secondary education, 11.4% in primary education, and 6.5% pursuing tertiary education.

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

Analysis of public transport in Northbridge shows 46 active transport stops operating within the area, all serving buses. These stops are serviced by 36 individual routes, collectively providing 1,619 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 136 meters from the nearest transport stop. As a primarily residential area, most residents commute outward. Car remains the dominant mode of transportation at 80%, with 7% walking and 6% by bus. Vehicle ownership averages 1.5 per dwelling, above the regional average.

According to the 2021 Census, a high 64.7% of residents work from home, which may reflect COVID-19 conditions. Service frequency averages 231 trips per day across all routes, equating to approximately 35 weekly trips per individual stop.

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

Northbridge's health outcomes show exceptional results based on AreaSearch's assessment of mortality rates and chronic condition prevalence, with very low prevalence across all age groups. The private health cover rate is exceptionally high at approximately 99% of the total population (6,334 people), compared to 59.9% in Greater Sydney and a national average of 55.7%. The most prevalent medical conditions are arthritis and asthma, affecting 6.7% and 6.2% of residents respectively, while 75.9% report being completely clear of medical ailments, compared to 74.6% in Greater Sydney.

Northbridge has a higher proportion of seniors aged 65 and over at 23.5% (1,507 people), compared to 15.4% in Greater Sydney. Health outcomes among seniors are strong, broadly aligning with national rankings for the general population.

The level of cultural diversity witnessed in Northbridge was found to be above average when compared nationally for a number of language and cultural background related metrics

Northbridge's population, with 21.0% speaking a language other than English at home and 30.7% born overseas, is more culturally diverse than most local markets. Christianity is the predominant religion in Northbridge, accounting for 54.7% of its population. Notably, Judaism is overrepresented in Northbridge compared to Greater Sydney, comprising 1.6% versus 0.8%.

In terms of ancestry, English (24.8%) and Australian (20.8%) are the top two groups, both higher than regional averages of 19.0% and 17.5%, respectively. Irish ancestry is also notable at 9.9%. Some other ethnic groups show significant divergences: French (1.0%) and Russian (0.8%) are overrepresented compared to regional figures of 0.5% and 0.4%, respectively, while Hungarian stands out at 0.5% versus the regional average of 0.3%.

Northbridge hosts a notably older demographic compared to the national average

Northbridge's median age stands at 44, surpassing Greater Sydney's figure of 37 and significantly exceeding the national average of 38. The age group of 55-64 is strongly represented at 13.6%, compared to Greater Sydney, while the 25-34 cohort is less prevalent at 5.1%. According to the 2021 Census, the 15 to 24 age group has increased from 12.3% to 14.9% of Northbridge's population, and the 75 to 84 cohort has risen from 6.3% to 8.4%. Conversely, the 5 to 14 age group has decreased from 16.4% to 14.3%, and the 35 to 44 group has fallen from 11.8% to 10.5%. By 2041, demographic modeling indicates significant changes in Northbridge's age profile. The 85+ group is projected to grow by 104%, reaching 563 people from 275. Those aged 65 and above are expected to comprise 83% of the population growth. Meanwhile, the 35 to 44 and 0 to 4 age groups are anticipated to experience population declines.