Balgowlah - Clontarf - Seaforth

SA2

Greater Sydney / Manly

 
 
 
 
 
 
 
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Statistical Area (SA2) Boundary Analysis

This analysis uses ABS Statistical Areas Level 2 (SA2) boundaries, which can materially differ from Suburbs and Localities (SAL) even when sharing similar names.

SA2 boundaries are defined by the Australian Bureau of Statistics and are designed to represent communities for statistical reporting (e.g., census and ERP).

Suburbs and Localities (SAL) represent commonly-used suburb/locality names (postal-style areas) and may use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.

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Sales ActivityProperty Sales Trends in Balgowlah - Clontarf - Seaforth

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The median house price in Balgowlah - Clontarf - Seaforth is $4.00m, with units at $1.54m. House values have moved 1.4% a year compounded over five years.

Curious about local property values? Filter the chart to assess the volume and appreciation (including resales) trends and regional comparisons, or scroll to the map below view this information at an individual property level.

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DemographicsPopulation Growth in Balgowlah - Clontarf - Seaforth

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Balgowlah - Clontarf - Seaforth has an estimated 20,936 residents, up from 20,732 at the 2021 Census — a change of 204 people, or 1.0%. That puts 2,751 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 by AreaSearch, the population of Balgowlah - Clontarf - Seaforth stands at approximately 20,936 as of May 2026. This represents an addition of 204 residents (1.0%) relative to the 20,732 individuals recorded in the 2021 Census. This adjustment is calculated using the ABS estimated resident population of 20,936 from June 2025 alongside 67 validated new addresses identified since the Census. The resulting population density reaches 2,751 persons per square kilometer, placing the locality in the top quarter of national areas analyzed by AreaSearch. The post-census growth of 1.0% is within 2.7 percentage points of the broader SA4 region (3.7%), showing competitive local dynamics.

The primary driver of this population growth was overseas migration, which accounted for roughly 82.5% of the total population gains in recent times. AreaSearch implements ABS/Geoscience Australia projections for each SA2 locality, published in 2024 using 2022 as the base year. For any SA2 region lacking this coverage, projections from the NSW State Government released in 2022 with a 2021 baseline are substituted. Age cohort growth rates derived from these figures are also applied across all localities for the period spanning 2032 to 2041. Looking at upcoming demographic changes, projections indicate a contraction in the total population, which is forecast to decrease by 101 individuals by 2041. Conversely, expansion is projected within specific age groups, led by residents aged 85 and over, whose numbers are expected to rise by 459 people.

Frequently Asked Questions - Population

What is the latest population estimate for the Balgowlah - Clontarf - Seaforth SA2?
Total population for the Balgowlah - Clontarf - Seaforth SA2 was estimated to be approximately 20,936 as at May 26. This is based upon an estimated resident population of 20,936 from the ABS up to June 2025.
How has the population in the Balgowlah - Clontarf - Seaforth SA2 changed since 2021?
The balgowlah - clontarf - seaforth sa2 has added approximately 204 people and shown a 0.98% increase from the 20,732 people recorded at the 2021 Census period.
What is the population density in the Balgowlah - Clontarf - Seaforth SA2?
The population density in the Balgowlah - Clontarf - Seaforth SA2 is estimated at 2,751 persons per square kilometer based on the latest population estimate.
How much has the population grown over the past 10 years in the Balgowlah - Clontarf - Seaforth SA2?
Over the past 10 years, the population in the Balgowlah - Clontarf - Seaforth SA2 has shown a compound annual growth rate of 0.0% per annum.
What are the main drivers of population growth in the Balgowlah - Clontarf - Seaforth SA2?
Population growth in the Balgowlah - Clontarf - Seaforth SA2 is driven by: Overseas migration (82.5%), Natural increase (17.5%), Interstate migration (0.0%). The primary driver is Overseas migration, contributing 82.5% of overall population gains.

Residential SupplyHousing Development & Building Approvals in Balgowlah - Clontarf - Seaforth

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304 new dwellings have been approved in Balgowlah - Clontarf - Seaforth over the past five years, an average of 60 a year. That is 2.9 approvals per 1,000 residents. Of the 51 dwellings approved in the latest reporting year, 51% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 56, broadly in line with that longer-run average. Figures come from ABS building approvals aggregated to this SA2 boundary and are updated monthly as the ABS releases them.

Detail

Balgowlah - Clontarf - Seaforth averages approximately 60 residential building approvals annually, with 304 dwellings approved over the 5 financial years from FY-21 to FY-25, and 52 recorded so far in FY-26. Despite a declining local population, the pace of construction has remained relatively sufficient, presenting options for purchasers, with new builds carrying an average construction value of $792,000 to highlight a developer focus on high-end, premium properties. Furthermore, commercial approvals valued at $18.6 million have been registered during the current financial year, indicating steady non-residential development. In comparison to Greater Sydney, construction volumes in Balgowlah - Clontarf - Seaforth are moderately elevated, running 24.0% above the regional average per capita over the 5 year timeframe, which helps sustain buyer options while protecting existing asset values.

However, this rate remains below the national average, pointing to local market maturity and potential physical planning limits. Recent building approvals consist of 51.0% standalone houses and 49.0% attached dwellings, indicating an increasing supply of medium-density formats that diversify local real estate options from traditional family homes to smaller, more affordable choices. The district records roughly 382 residents for every new dwelling approval, reflecting a fully developed suburb. Given that population forecasts indicate a flat or downward trajectory, Balgowlah - Clontarf - Seaforth is likely to experience easing demand pressures on housing, which should benefit prospective purchasers.

Frequently Asked Questions - Development

How many dwelling approvals have occurred in the Balgowlah - Clontarf - Seaforth SA2 recently?
Dwelling approval activity in the the Balgowlah - Clontarf - Seaforth SA2 area has seen 110 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The Balgowlah - Clontarf - Seaforth SA2's current population of 20,936 has been supported by 60 approvals on average over recent years.
How does the Balgowlah - Clontarf - Seaforth SA2's development activity compare to the broader region?
The Balgowlah - Clontarf - Seaforth SA2 has seen 0.29 approvals per 100 people in recent years, compared to 0.65 approvals in the broader region. This means that one dwelling has been approved for every 382 people in the Balgowlah - Clontarf - Seaforth SA2, compared to one for every 190 in the broader region.
Is the Balgowlah - Clontarf - Seaforth SA2 keeping up with housing demand?
Population forecasts suggest stable or declining population, reducing pressure on housing supply in the the Balgowlah - Clontarf - Seaforth SA2 area.
What has been the trend in development approvals over the past five years in the Balgowlah - Clontarf - Seaforth SA2?
Looking at development activity over the past five years, the Balgowlah - Clontarf - Seaforth SA2's approval levels have been below the yearly average of 60, indicating a recent decline in approval activity.
How does recent development compare to population growth in the Balgowlah - Clontarf - Seaforth SA2?
Over the past five years, the population in the Balgowlah - Clontarf - Seaforth SA2 has grown by approximately 2,491 people, while 304 residential approvals were recorded. This equates to a ratio of 8.2 people added for each new dwelling approval. This high ratio suggests strong population growth relative to housing supply, potentially indicating unmet housing demand.
Are there opportunities for residential developers in the Balgowlah - Clontarf - Seaforth SA2?
With dwelling approval activity running at an average of 60 approvals per year and a population of 20,936, stable population forecasts suggest a mature market with selective development opportunities.
Approvals Pipeline Development applications near Balgowlah - Clontarf - Seaforth

Development applications around Balgowlah - Clontarf - Seaforth

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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.

Project PipelineInfrastructure & Major Projects in Balgowlah - Clontarf - Seaforth

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AreaSearch tracks 8 current infrastructure and development projects inside Balgowlah - Clontarf - Seaforth, worth an estimated $321 million. A further 81 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $6.89 billion. 28 are already under construction and 35 are due for completion within three years. The pipeline spans residential development, sports & recreation and communities, precincts & urban renewal. 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 changes are major drivers of local area performance. AreaSearch has identified 14 developments expected to affect the local area. Key projects include the Totem Road Precinct - Balgowlah Heights, the Seaforth Village Masterplan & Redevelopment, the Balgowlah Village Shopping Centre Refurbishment, and the Seaforth Public School Expansion & Modernisation, with the details of the most relevant initiatives listed below.

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Frequently Asked Questions - Infrastructure

What are some of the major infrastructure and planning changes likely to influence the Balgowlah - Clontarf - Seaforth SA2?
Key infrastructure and planning changes likely to influence the Balgowlah - Clontarf - Seaforth SA2 include: Totem Road Precinct - Balgowlah Heights (Construction); Seaforth Village Masterplan & Redevelopment (Planning); Balgowlah Village Shopping Centre Refurbishment (Planning); Seaforth Public School Expansion & Modernisation (Planning); and The Strand - Balgowlah (Planning). These projects represent significant developments that will shape the area's future infrastructure landscape.
What types of infrastructure projects are impacting the Balgowlah - Clontarf - Seaforth SA2?
Infrastructure development impacting the Balgowlah - Clontarf - Seaforth SA2 spans multiple sectors including Residential Development, Education & Training, and Retail, among others.
What is the scale of infrastructure investment impacting the Balgowlah - Clontarf - Seaforth SA2?
Infrastructure investment analysis indicates significant investment of approximately $600 million in infrastructure projects affecting the region, with a notable concentration of investment within the immediate the Balgowlah - Clontarf - Seaforth SA2 vicinity.
How does the Balgowlah - Clontarf - Seaforth SA2's infrastructure development compare to other areas?
With an infrastructure score in the top 40%, the Balgowlah - Clontarf - Seaforth SA2 demonstrates above-average development activity compared to national benchmarks.
Seaforth Village Masterplan & Redevelopment
Category: Precincts & Urban Renewal
Stage: Planning | Est. Comp: 2028
Source / Links: Link 1   Link 2  

A proposed mixed-use village centre redevelopment of the existing Seaforth shopping strip, featuring a new full-line supermarket, specialty retail, dining precinct, medical centre, childcare facility, and improved public domain with laneways and plazas. Developed by Celeste Property, the project aims to transform the ageing centre into a contemporary neighbourhood hub serving the Northern Beaches community.

Precincts & Urban Renewal

Balgowlah Village Shopping Centre Refurbishment
Category: Communities
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   

Internal refurbishment and tenant remix program at the former Stockland Balgowlah shopping centre. Stockland sold the 12,802 square metre centre to private developer Revelop in March 2024 for 155 million dollars and the asset was rebranded Balgowlah Village following a community naming vote. Revelop has publicly ruled out site redevelopment, including any additional residential tower, and confirmed the strategy is to refresh the interior, refurbish public areas and introduce new fresh food and dining tenancies.Revelop and the centre's own channels describe the transformation as well underway, with new food and beverage tenants such as The Kitchen launching promotions through mid-2026. The centre forms the retail podium of an existing mixed use precinct that already includes 240 apartments above the shopping floors, a car park and Fitness First Platinum gym, and is anchored by Coles, Harbord Growers Market and around 70 specialty stores. An earlier major expansion development application lodged under previous owner Invesco was refused by the Sydney North Planning Panel in 2021 due to traffic, building height and setback concerns and is no longer being progressed.

Communities

Totem Road Precinct - Balgowlah Heights
Category: Residential Development
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   

Boutique collection of 28 luxury townhouses and apartments in Balgowlah Heights by Pallas Group, with completion due mid-2026. The project consists of two separate residential buildings.

Residential Development

Balgowlah RSL Club Renovations (Stage 1 of Master Plan)
Category: Communities, Precincts & Urban Renewal
Stage: Construction | Est. Comp: 2025
Source / Links: Link 1   Link 2  

Stage 1 of the Balgowlah RSL Master Plan involves a comprehensive refurbishment of the club facilities. The scope includes the demolition and reconstruction of the main lounge, cafe, and TAB areas, alongside the creation of a new indoor/outdoor bar precinct featuring an operable glass roof. This stage focuses on modernising the 70-year-old venue to enhance community appeal and accessibility while maintaining its role as a key local hub.

Communities, Precincts & Urban Renewal

The Strand - Balgowlah
Category: Residential Development
Stage: Planning | Est. Comp: 2026
Source / Links: Link 1   

Luxury collection of 12 oversized 3- and 4-bedroom apartments with rooftop terraces directly opposite North Harbour Reserve, developed by the Toga Group. The development appears to be in the pre-construction or planning phase.

Residential Development

Sangrado Road Residential Development
Category: Residential Development
Stage: Dev. Approval | Est. Comp: 2026
Source / Links: Link 1   

Approved medium-density residential development comprising 12 luxury townhouses in the heart of Seaforth.

Residential Development

Seaforth Public School Expansion & Modernisation
Category: Education & Training
Stage: Proposed | Est. Comp: 0
Source / Links: Link 1   Link 2  

Proposed upgrade and expansion of Seaforth Public School, a two-campus primary school in Sydney's Northern Beaches, as part of the NSW Department of Education capital works program. Scope reportedly includes new classroom blocks, hall refurbishment, and improved play spaces. As of 2025-26, no dedicated School Infrastructure NSW project page exists; the school is listed under routine maintenance programs only, with no confirmed funding or construction timeline announced.

Education & Training

Former Queenscliff Health Centre Redevelopment
Category: Residential Development
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   Link 2  

Adaptive reuse and transformation of the former Queenscliff Community Health Centre into 37 social housing apartments (27 studios, 8 one-bedroom, 2 two-bedroom units) with priority allocated to women over 55 at risk of homelessness. Owned and managed by Link Wentworth with NSW Government and HAFF funding support.

Residential Development

Jobs & IndustryEmployment Trends in Balgowlah - Clontarf - Seaforth

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11,292 residents of Balgowlah - Clontarf - Seaforth are employed, from a labour force of 11,730. Unemployment sits at 3.7%, with participation at 69.2%. Weighted for its industry mix, the area's sectors are forecast to grow about 7.4% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 17,920, about 86% 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

Balgowlah - Clontarf - Seaforth features a well educated labor force where the technology industry shows strong representation and the area has maintained steady employment levels throughout the last year. By March 2026, 11,292 individuals were employed, and the local unemployment rate stood at 0.4% lower than the 4.1% recorded for Greater Sydney while the workforce participation rate matched the Greater Sydney figure of 69.1%. Census data indicates that 62.7% of residents worked from home, although the influence of Covid-19 lockdown measures should be taken into account when interpreting these figures.

The primary sectors employing local residents are professional & technical, finance & insurance, and health care & social assistance. The local concentration of professional & technical staff is particularly pronounced, registering at 1.7 times the metropolitan average. In contrast, the health care & social assistance sector is underrepresented locally at 11.0% of the workforce compared to the metropolitan average of 14.1%. Given the difference between the local working population and resident worker counts, this residential suburb provides relatively few jobs within its own boundaries. AreaSearch analysis of SALM and ABS data indicates that during the 12 months leading to March 2026, employment numbers changed by 0.0% while the total labor force grew by 1.4%, resulting in a 1.3 percentage point increase in the unemployment rate. Over the same period, Greater Sydney experienced employment expansion of 1.9% and labor force growth of 1.9%, with unemployment decreasing slightly. Employment forecasts released by Jobs and Skills Australia in May-25 provide a guide to prospective demand trends in Balgowlah - Clontarf - Seaforth. These five and ten-year projections have been applied to the local workforce structure to model future growth. Although national employment is projected to rise by 6.6% over five years and 13.7% over ten years, the rates of change vary by industry. Applying these industry projections to the local employment distribution suggests that employment among residents will rise by 7.4% over five years and 14.7% over ten years.

Frequently Asked Questions - Employment

What is the employment situation in the Balgowlah - Clontarf - Seaforth SA2?
As of March 2026, the Balgowlah - Clontarf - Seaforth SA2 has approximately 11,292 employed residents with an unemployment rate of 3.7%. This healthy unemployment rate suggests a well-functioning labour market. Employment performance is above the national median, showing positive labour market dynamics.
How does the Balgowlah - Clontarf - Seaforth SA2's unemployment rate compare to the broader region?
As of March 2026, the unemployment rate in the Balgowlah - Clontarf - Seaforth SA2 stands at 3.7%, which is broadly in line with Greater Sydney's rate of 4.1%. For comparison, the national unemployment rate is 4.2%.
What are the major employment sectors in the Balgowlah - Clontarf - Seaforth SA2?
The employment landscape in the Balgowlah - Clontarf - Seaforth SA2 is dominated by several key sectors. The largest employers are professional & technical (19.7% of employment), finance & insurance (12.3%), and health care & social assistance (11.0%). Other significant employers include education & training and retail trade.
How has employment changed recently in the Balgowlah - Clontarf - Seaforth SA2?
Over the past year to March 2026, the Balgowlah - Clontarf - Seaforth SA2 has experienced employment growth, with total employment increasing while the labour force increased. As a result, the unemployment rate has rise. By comparison, Greater Sydney saw employment increased and its unemployment rate dropped.
What is the workforce participation rate in the Balgowlah - Clontarf - Seaforth SA2?
The workforce participation rate in the Balgowlah - Clontarf - Seaforth SA2 is 69.2%, which represents the proportion of working-age residents who are either employed or actively seeking work. This healthy participation rate reflects good employment opportunities and workforce engagement. The local rate leading the Greater Sydney average of 69.1%, showing similar workforce dynamics to the broader region.
Which industries are over-represented in the Balgowlah - Clontarf - Seaforth SA2's employment market?
The balgowlah - clontarf - seaforth sa2 shows notable specialization in professional & technical, which employs 19.7% of the local workforce compared to 11.5% regionally. This concentration suggests the area has developed competitive advantages in this sector. The area also shows above-average employment in 1 other sectors, contributing to a distinctive economic profile.
What are the employment growth prospects for the Balgowlah - Clontarf - Seaforth SA2?
Based on Jobs and Skills Australia projections applied to the Balgowlah - Clontarf - Seaforth SA2's industry mix, employment is expected to grow by 7.4% over the next five years and 14.7% over ten years. This exceeds the national forecast of 6.6% over five years, suggesting the area's industry composition is well-positioned for future growth. Steady growth is anticipated across multiple sectors, providing diverse employment opportunities.
How does the job market in the Balgowlah - Clontarf - Seaforth SA2 compare nationally?
The balgowlah - clontarf - seaforth sa2's employment market shows above-average performance nationally, placing in the top half of areas assessed. Employment indicators suggest healthy labour market conditions relative to other regions. Recent job advertisement trends show the broader employment region saw a 5.9% decline, ranking 29.0th out of 37 regions nationally.
What employment opportunities exist for skilled workers in the Balgowlah - Clontarf - Seaforth SA2?
Skilled workers will find excellent opportunities in the Balgowlah - Clontarf - Seaforth SA2, with knowledge-intensive sectors comprising 55.1% of local employment. Key sectors for skilled workers include professional & technical (19.7%), finance & insurance (12.3%), and health care & social assistance (11.0%). With projected employment growth of 7.4% over five years, demand for skilled workers is expected to remain strong.

EarningsHousehold Income in Balgowlah - Clontarf - Seaforth

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Median household income in Balgowlah - Clontarf - Seaforth is $3,409 a week (about $177,000 a year), with median personal income at $1,282 a week. ATO records put median taxable income at $75,428 a year against an average of $149,660. The average runs 98% 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

AreaSearch data compiled from the latest postcode-level ATO statistics for financial year 2023 shows that the Balgowlah - Clontarf - Seaforth SA2 recorded a median taxpayer income of $75,428 and an average taxpayer income of $149,660. These figures rank in the top national percentile, comparing to averages of $60,817 and $83,003 across Greater Sydney. Factoring in Wage Price Index growth of 10.32% since financial year 2023, current estimates for March 2026 stand at approximately $83,212 for the median and $165,105 for the average. Census data from 2021 places household, family, and personal incomes in the 94th to 99th percentiles nationwide.

In terms of distribution, 44.7% of the local population (9,358 people) earn in the $4000+ bracket, contrasting with regional patterns where 30.9% of taxpayers are situated in the $1,500 - 2,999 range. Local affluence is high, with 55.4% of residents earning more than $3,000 weekly, which supports premium retail and services. Housing costs absorb 14.9% of income, placing local disposable income in the 98th percentile, while the SEIFA index ranks the area in the 10th decile for income.

Frequently Asked Questions - Income

What is the median taxable income in the Balgowlah - Clontarf - Seaforth SA2?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the Balgowlah - Clontarf - Seaforth SA2 is approximately $83,212. The official ATO data from FY-23 recorded a median of $75,428.
What is the average taxable income in the Balgowlah - Clontarf - Seaforth SA2?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the Balgowlah - Clontarf - Seaforth SA2 is approximately $165,105. The official ATO data from FY-23 recorded an average of $149,660.
How does the median taxable income in the Balgowlah - Clontarf - Seaforth SA2 compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the Balgowlah - Clontarf - Seaforth SA2 is approximately $83,212 compared to $67,093 in Greater Sydney. The official ATO data from FY-23 shows $75,428 and $60,817 respectively.
How does the average taxable income in the Balgowlah - Clontarf - Seaforth SA2 compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the Balgowlah - Clontarf - Seaforth SA2 is approximately $165,105 compared to $91,569 in Greater Sydney. The official ATO data from FY-23 shows $149,660 and $83,003 respectively.
What are the main income cohorts in the Balgowlah - Clontarf - Seaforth SA2 according to the 2021 Census?
As per the 2021 Census, the income bracket containing the largest proportion (~44.7% / 9,358 persons) of the Balgowlah - Clontarf - Seaforth SA2's population is the $4000+ cohort.
How do the main income cohorts in the Balgowlah - Clontarf - Seaforth SA2 compare to the region?
The largest income cohort in the Balgowlah - Clontarf - Seaforth SA2 is the $4000+ group, representing about 44.7% of the population. In comparison, Greater Sydney's largest income cohort is the $1,500 - 2,999 group, representing 30.9% of its population, according to the 2021 Census.
What is the median household income in the Balgowlah - Clontarf - Seaforth SA2 according to the 2021 Census?
The 2021 Census data indicates that the median household income in the Balgowlah - Clontarf - Seaforth SA2 is $3,409/wk.
What is the median family income in the Balgowlah - Clontarf - Seaforth SA2 according to the 2021 Census?
According to the 2021 Census, the median family income in the Balgowlah - Clontarf - Seaforth SA2 is $4,368/wk.
What is the median personal income in the Balgowlah - Clontarf - Seaforth SA2 according to the 2021 Census?
The 2021 Census shows that the median personal income in the Balgowlah - Clontarf - Seaforth SA2 is $1,282/wk.
How does the Balgowlah - Clontarf - Seaforth SA2's income rank nationally?
The Balgowlah - Clontarf - Seaforth SA2's income level is exceptionally high nationally according to the latest ATO data aggregated by AreaSearch for FY-23. The Balgowlah - Clontarf - Seaforth SA2's median income among taxpayers is $75,428 and the average income stands at $149,660, which compares to figures for Greater Sydney's of $60,817 and $83,003 respectively. Based on Wage Price Index growth of 10.32% since FY-23, current estimates would be approximately $83,212 (median) and $165,105 (average) as of March 2026.
What is the disposable income in the Balgowlah - Clontarf - Seaforth SA2?
The estimated disposable income in the Balgowlah - Clontarf - Seaforth SA2 is $12,578 per year according to AreaSearch analysis.
How does the Balgowlah - Clontarf - Seaforth SA2's disposable income compare to the region?
The balgowlah - clontarf - seaforth sa2's disposable income is $12,578 compared to $7,412 for Greater Sydney, based on AreaSearch analysis.

Housing StockHousing & Dwellings in Balgowlah - Clontarf - Seaforth

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Balgowlah - Clontarf - Seaforth had 7,044 occupied dwellings at the 2021 Census, 65% detached houses and 20% apartments. 39% are owned with a mortgage, 21% rented and 40% owned outright. At that Census the median rent was $697 a week and the median mortgage repayment $4,000 a month, a total housing cost higher than 98% of areas nationally. Rent absorbs 20.4% of household income here and mortgage repayments 27.1%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.

Detail

The mix of housing types in Balgowlah - Clontarf - Seaforth at the time of the latest Census consisted of 65.4% separate houses and 34.6% other options like townhouses and apartments, compared to 55.9% houses and 44.1% other dwellings across the Sydney metropolitan area. Home ownership rates were higher than the Sydney average, with 39.9% owning their homes outright, while 38.7% had mortgages and 21.4% rented. The median monthly mortgage payment of $4,000 was significantly higher than the Sydney metropolitan median of $2,427, and the median weekly rent of $697 also exceeded the metropolitan median of $470.

Locally, mortgage payments are much higher than the national median of $1,863, while weekly rents also sit well above the Australian median of $375.

Frequently Asked Questions - Housing

What percentage of homes are owned vs rented in the Balgowlah - Clontarf - Seaforth SA2?
In the Balgowlah - Clontarf - Seaforth SA2, 39.9% of homes are owned outright, 38.7% are owned with a mortgage, and 21.4% are rented.
What percentage of dwellings in the Balgowlah - Clontarf - Seaforth SA2 are houses?
According to the latest data, 65.4% of dwellings in the Balgowlah - Clontarf - Seaforth SA2 are houses.
What percentage of dwellings in the Balgowlah - Clontarf - Seaforth SA2 are apartments or units?
In the Balgowlah - Clontarf - Seaforth SA2, 19.8% of dwellings are apartments or units, with an additional 13.8% being semi-detached dwellings.
What is the level of outright home ownership in the Balgowlah - Clontarf - Seaforth SA2?
Outright home ownership in the Balgowlah - Clontarf - Seaforth SA2 stands at 39.9%, compared to 28.7% in Greater Sydney.
What is the median monthly mortgage repayment in the Balgowlah - Clontarf - Seaforth SA2?
The median monthly mortgage repayment in the Balgowlah - Clontarf - Seaforth SA2 is $4,000, compared to $2,427 in Greater Sydney.
What is the median weekly rent in the Balgowlah - Clontarf - Seaforth SA2?
The median weekly rent in the Balgowlah - Clontarf - Seaforth SA2 is $697, compared to $470 in Greater Sydney.
What is the distribution of rental prices in the Balgowlah - Clontarf - Seaforth SA2?
In the Balgowlah - Clontarf - Seaforth SA2, 0.9% of rentals are $0-149/week, 7.0% are $150-349/week, 34.4% are $350-649/week, 28.4% are $650-949/week, and 29.3% are $950+/week.
What is the average monthly housing cost in the Balgowlah - Clontarf - Seaforth SA2?
The aggregate monthly housing cost in the Balgowlah - Clontarf - Seaforth SA2 is $2,194, which represents the average monthly cost across all housing types.
What percentage of income do residents spend on housing in the Balgowlah - Clontarf - Seaforth SA2?
In the Balgowlah - Clontarf - Seaforth SA2, households with mortgages typically spend 27.1% of their income on mortgage repayments, while renters spend 20.4% of their income on rent.
How crowded are homes in the Balgowlah - Clontarf - Seaforth SA2?
The average persons per bedroom ratio in the Balgowlah - Clontarf - Seaforth SA2 is 0.9, indicating the level of household density.
How does housing affordability in the Balgowlah - Clontarf - Seaforth SA2 compare to the region?
Housing affordability in the Balgowlah - Clontarf - Seaforth SA2 shows mortgage holders spending 27.1% of income on repayments (vs 27.0% regionally), while renters spend 20.4% of income on rent (vs 22.6% regionally).
What types of dwellings are most common in the Balgowlah - Clontarf - Seaforth SA2?
The dwelling mix in the Balgowlah - Clontarf - Seaforth SA2 consists of 65.4% detached houses, 13.8% semi-detached dwellings, 19.8% apartments, and 1.0% other dwelling types.
What is the weighted average housing cost based on tenure mix in the Balgowlah - Clontarf - Seaforth SA2?
Accounting for the local ownership mix, the weighted average monthly housing cost is approximately $2,194. This accounts for outright owners paying no housing costs, mortgage holders paying $4,000/month, and renters paying $3,018/month.
How affordable is housing in the Balgowlah - Clontarf - Seaforth SA2 relative to local incomes?
Housing in Balgowlah - Clontarf - Seaforth consumes approximately 14.9% of median household income ($14,761 monthly), indicating costs are highly affordable. The generally accepted benchmark is that housing should not exceed 30% of household income.
How do proposed developments compare to existing housing types in the Balgowlah - Clontarf - Seaforth SA2?
Recent development applications in Balgowlah - Clontarf - Seaforth show attached dwellings contributing 54% of approvals compared to 35% of existing stock, while detached houses represent 46% of applications versus 65% of current dwellings. This suggests increasing densification. Housing density growth is around the national average.

HouseholdsHousehold Composition in Balgowlah - Clontarf - Seaforth

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Balgowlah - Clontarf - Seaforth counted 7,044 households at the 2021 Census, averaging 2.9 people each. 46% are couples with children, more than in 90% of areas nationally, against 25% couples without children. 17% 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 80.0% of all households in the area, consisting of couples with children at 45.8%, couples without children at 24.8%, and single parent families at 8.6%. Non-family households account for the remaining 20.0% of the total, with lone person households representing 17.4% and group households making up 2.6%. The median household size of 2.9 people is larger than the Greater Sydney average of 2.7.

Frequently Asked Questions - Households

How many households are in the Balgowlah - Clontarf - Seaforth SA2?
As of the 2021 Census, the Balgowlah - Clontarf - Seaforth SA2 had 7,044 households. Based on population growth patterns, this has remained relatively stable to an estimated 7,113 households today.
What is the typical household size?
The median household size in the Balgowlah - Clontarf - Seaforth SA2 is 2.9 people. This compares to 2.7 in Greater Sydney and reflects the area's household composition mix.
What types of households are most common?
Family households dominate at 80.0% of all households. The remaining households consist of lone person households (17.4%), group households (2.6%), and other household types (0.0%).
How are families structured in the area?
Among the 5,635 family households, 45.8% are couples with children, 24.8% are couples without children at home, and 8.6% are single parent families. This mix shapes local demand for schools, family services, and housing types.
How does the Balgowlah - Clontarf - Seaforth SA2 compare to regional household patterns?
Compared to Greater Sydney, the Balgowlah - Clontarf - Seaforth SA2 shows distinct household patterns. Family households are notably over-represented at 80.0% (versus 72.6% regionally). Conversely, lone person households are under-represented at 17.4% compared to the regional 23.2%. This family-oriented profile influences local demand for family homes, schools, and children's services.
What is the average family size?
Families in the Balgowlah - Clontarf - Seaforth SA2 have an average of 1.5 children, matching the Greater Sydney average of 1.5. This influences local demand for child-related services and larger family homes.
What are the marriage patterns in the Balgowlah - Clontarf - Seaforth SA2?
Marriage patterns reveal 56.4% of the adult population are currently married, while 31.1% have never married. This compares to 48.3% married and 36.4% never married across Greater Sydney.
How significant are single-person households?
Single-person households represent 17.4% of all households in the Balgowlah - Clontarf - Seaforth SA2, notably lower than the regional average of 23.2%. This affects demand for smaller dwellings and single-person accommodation.
Are shared living arrangements common?
Group households (unrelated people sharing) account for 2.6% of households, well below the Greater Sydney average of 4.2%. This low rate suggests limited student or young professional shared accommodation.
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EducationSchools & Education in Balgowlah - Clontarf - Seaforth

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51.9% of adults in Balgowlah - Clontarf - Seaforth hold a university qualification, including 35.1% with a bachelor degree and 13.3% with postgraduate qualifications, higher than 99% of areas nationally. A further 10.8% hold a vocational qualification. 5 schools serve the area, with 3,277 enrolment places and an average ICSEA of 1,153 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

The level of education in Balgowlah - Clontarf - Seaforth is high relative to broader benchmarks, with 51.9% of residents aged 15+ holding a university degree, compared to 30.4% nationally and 32.2% across NSW. This gives the area a strong position for knowledge-based employment. Bachelor degrees are the most common qualification at 35.1%, followed by postgraduate degrees at 13.3% and graduate diplomas at 3.5%. Vocational education accounts for 22.0% of qualifications among residents aged 15+, consisting of advanced diplomas at 11.2% and certificates at 10.8%. Participation in study is high among local residents, with 33.2% currently enrolled in education.

This comprises 11.3% of residents in primary school, 10.4% in secondary school, and 6.0% undertaking tertiary studies.

Frequently Asked Questions - Education

What percentage of people in the Balgowlah - Clontarf - Seaforth SA2 have university qualifications?
51.9% of people aged 15 and over in the Balgowlah - Clontarf - Seaforth SA2 have university qualifications, compared to 38.0% in the broader region.
What percentage of people in the Balgowlah - Clontarf - Seaforth SA2 have no formal qualifications?
26.1% of people aged 15 and over in the Balgowlah - Clontarf - Seaforth SA2 have no formal qualifications, compared to 34.2% regionally.
How does the Balgowlah - Clontarf - Seaforth SA2's education level compare to national averages?
The balgowlah - clontarf - seaforth sa2 ranks in the 99th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
What types of qualifications are most common in the Balgowlah - Clontarf - Seaforth SA2?
The most common qualifications in the Balgowlah - Clontarf - Seaforth SA2 are: Bachelor Degree (35.1%), Postgraduate (13.3%), Advanced Diploma (11.2%).
What proportion of the Balgowlah - Clontarf - Seaforth SA2's population is currently attending educational institutions?
33.2% of the population in the Balgowlah - Clontarf - Seaforth SA2 is currently engaged in formal education, with 11.3% in primary school, 10.4% in secondary school, 6.0% at university.
What is the ICSEA score for schools in the Balgowlah - Clontarf - Seaforth SA2?
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the Balgowlah - Clontarf - Seaforth SA2 is 1153, indicating above-average socio-educational advantage compared to the national average of 1000.
How many schools are located within the Balgowlah - Clontarf - Seaforth SA2?
There are 5 schools within the Balgowlah - Clontarf - Seaforth SA2, with a combined enrollment of approximately 3,277 students.
What types of schools are available in the Balgowlah - Clontarf - Seaforth SA2?
The balgowlah - clontarf - seaforth sa2 includes 4 primary schools, 1 secondary school.

Schools Detail

AmenitiesServices & Amenities in Balgowlah - Clontarf - Seaforth

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Getting AroundTransport & Commuting in Balgowlah - Clontarf - Seaforth

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Public transport in Balgowlah - Clontarf - Seaforth reaches 208 stops on 73 routes, timetabled for about 4,500 services a week. The typical home sits about 130 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.4 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

Analysis of the local transport network shows 208 active public transport stops in Balgowlah - Clontarf - Seaforth, consisting of bus services. These stops are served by 73 routes, providing 4,466 weekly passenger services. Transport accessibility is high, with the average distance to the nearest stop being 127 meters. Because the area is mainly residential, most workers travel outside the suburb to work, with private cars being the main transport mode at 79%, followed by buses at 9% and walking at 5%. Average vehicle ownership is 1.4 per household, which is higher than the regional average.

A total of 62.7% of residents worked from home according to the 2021 Census, which may reflect the impact of pandemic conditions. Public transport services average 638 daily trips across all active routes, representing approximately 21 weekly trips per individual stop. The accompanying map displays the 100 closest transport stops to the center of the locality.

Frequently Asked Questions - Transport

How many public transport stops are in Balgowlah - Clontarf - Seaforth?
There are 208 public transport stops within the Balgowlah - Clontarf - Seaforth SA2.
How frequent are the transport services in Balgowlah - Clontarf - Seaforth?
the Balgowlah - Clontarf - Seaforth SA2 has 4,466 weekly trips across 73 routes, averaging 638 trips per day.
How far are residents from public transport in Balgowlah - Clontarf - Seaforth?
On average, residential properties are 127 meters from the nearest transport stop.

Transport Stops Detail

HealthcareHealth Services in Balgowlah - Clontarf - Seaforth

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77.5% of residents in Balgowlah - Clontarf - Seaforth report no long-term health condition, a healthier profile than 98% of areas nationally. 2.8% need daily assistance with core activities, and 84.9% hold private health cover. The standardised death rate runs at 3.3 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.

Detail

Health indicators in Balgowlah - Clontarf - Seaforth show positive results based on AreaSearch analysis of mortality rates and the occurrence of chronic illness, indicating a low rate of common conditions across age brackets. Private health insurance coverage is high, with approximately 85% of the population (17,774 people) covered. This compares to coverage rates of 59.9% in Greater Sydney and a national average of 55.7%. Asthma and arthritis are the most common chronic conditions in the locality, affecting 6.2% and 5.4% of residents. Meanwhile, 77.5% of residents reported having no long-term health conditions, compared to 74.6% across Greater Sydney.

Residents aged 65 and over make up 16.8% of the local population (3,523 people), which is higher than the Greater Sydney average of 15.5%. Health outcomes for these older residents are positive, with national health benchmarks matching those of the wider population.

Frequently Asked Questions - Health

How many people in the Balgowlah - Clontarf - Seaforth SA2 have private health insurance?
Around 84.9% of people in the Balgowlah - Clontarf - Seaforth SA2 are covered by private health insurance, which compares to 59.9% in the broader region of Greater Sydney.
What percentage of the population requires ongoing medical assistance in the Balgowlah - Clontarf - Seaforth SA2?
In the Balgowlah - Clontarf - Seaforth SA2, 2.8% of the population is identified as requiring ongoing medical assistance. This figure is slightly different from the regional average, where 5.2% of people in Greater Sydney require similar assistance.
How prevalent is asthma in the Balgowlah - Clontarf - Seaforth SA2?
6.2% of people in the Balgowlah - Clontarf - Seaforth SA2 are diagnosed with asthma. In comparison, 6.4% of the population across Greater Sydney is affected by asthma.
What percentage of people have diabetes in the Balgowlah - Clontarf - Seaforth SA2?
Diabetes affects 2.0% of the the Balgowlah - Clontarf - Seaforth SA2 population, while in the surrounding region, 4.3% of people are diagnosed with diabetes.
What is the percentage of people with heart disease in the Balgowlah - Clontarf - Seaforth SA2?
3.1% of people in the Balgowlah - Clontarf - Seaforth SA2 have heart disease. Across the region of Greater Sydney, 3.2% of the population is affected by heart disease.
How does the Balgowlah - Clontarf - Seaforth SA2 compare to the region in terms of overall private health coverage?
In the Balgowlah - Clontarf - Seaforth SA2, 84.9% of the population are estimated to have private health insurance. Comparatively, Greater Sydney sees an estimated private health coverage rate of 59.9%.

Ancestry & LanguageCultural Diversity in Balgowlah - Clontarf - Seaforth

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32.9% of Balgowlah - Clontarf - Seaforth residents were born overseas and 14.3% speak a language other than English at home. The largest reported ancestries are English (30.5%) and Australian (21.0%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.

Detail

Balgowlah - Clontarf - Seaforth has higher levels of cultural diversity than many other areas, with 14.3% of residents speaking a non-English language at home and 32.9% born outside Australia. The most common religion is Christianity, representing 51.5% of the local population. Judaism shows the most notable local concentration, representing 0.4% of residents compared to 0.8% across Greater Sydney. English ancestry is the most common parental birthplace group in Balgowlah - Clontarf - Seaforth, representing 30.5% of the population compared to a regional average of 19.0%. This is followed by Australian ancestry at 21.0% and Irish ancestry at 9.8%.

There are also differences in other groups, with French ancestry representing 1.1% of the population (versus 0.5% regionally), South Australian ancestry at 1.3% (versus 0.5%), and Welsh ancestry at 0.9% (versus 0.4%).

Frequently Asked Questions - Diversity

What is the level of cultural diversity in the Balgowlah - Clontarf - Seaforth SA2?
Balgowlah - Clontarf - Seaforth was found to be more culturally diverse than the vast majority of local markets, with 14.3% of its population speaking a language other than English at home and 32.9% born overseas.
What is the most common religion in the Balgowlah - Clontarf - Seaforth SA2?
The main religion in Balgowlah - Clontarf - Seaforth was found to be Christianity, which makes up 51.5% of people in Balgowlah - Clontarf - Seaforth. However, the most apparent overrepresentation was in Judaism, which comprises 0.4% of the population, compared to 0.8% across Greater Sydney.
What are the top countries of origin in the Balgowlah - Clontarf - Seaforth SA2?
In terms of ancestry (country of birth of parents), the top three represented groups in Balgowlah - Clontarf - Seaforth are English, comprising 30.5% of the population, which is substantially higher than the regional average of 19.0%, Australian, comprising 21.0% of the population, and Irish, comprising 9.8% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: French is notably overrepresented at 1.1% of Balgowlah - Clontarf - Seaforth (vs 0.5% regionally), South African at 1.3% (vs 0.5%) and Welsh at 0.9% (vs 0.4%).
How does the percentage of people born overseas compare to the regional average?
32.9% of the the Balgowlah - Clontarf - Seaforth SA2 population was born overseas, compared to 40.5% regionally.
What percentage of the the Balgowlah - Clontarf - Seaforth SA2 population speaks a language other than English at home?
14.3% of the population in the Balgowlah - Clontarf - Seaforth SA2 speaks a language other than English at home, compared to 39.5% in the wider region.
How many people in the Balgowlah - Clontarf - Seaforth SA2 identify as Australian Aboriginal?
0.3% of the the Balgowlah - Clontarf - Seaforth SA2 population identifies as Australian Aboriginal, compared to 1.3% in the region.
What is the citizenship status of the population in the Balgowlah - Clontarf - Seaforth SA2?
89.0% of the the Balgowlah - Clontarf - Seaforth SA2 population holds citizenship, compared to 80.8% in the wider region.

Age StructureAge Profile of Balgowlah - Clontarf - Seaforth

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The median resident of Balgowlah - Clontarf - Seaforth is 42. 22.7% 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 of residents in Balgowlah - Clontarf - Seaforth is 42 years, which is older than the Greater Sydney median of 37 and the national median of 38. The 45 - 54 age group represents 16.5% of the local population, whereas the 25 - 34 demographic is smaller at 7.5%. Post-2021 Census data shows the 15 to 24 age bracket increased from 12.3% to 15.3% of the population, while the 35 to 44 cohort decreased from 12.7% to 11.1% and the 5 to 14 cohort declined from 16.1% to 14.7%.

Projections to 2041 suggest changes to the local age structure, with the 85+ cohort expected to grow by 80% (432 people) to reach 973 from a baseline of 540. The combined 65+ age cohorts are projected to account for 100% of the overall population growth, while the 55 to 64 and 25 to 34 demographics are expected to decrease in size.

Frequently Asked Questions - Age

What is the median age in the Balgowlah - Clontarf - Seaforth SA2?
According to the latest data, the median age in the Balgowlah - Clontarf - Seaforth SA2 is 42 years.
How does the Balgowlah - Clontarf - Seaforth SA2's median age compare to broader areas?
At 42 years, Balgowlah - Clontarf - Seaforth is 5 years older than the Greater Sydney average (37 years) and 4 years older than the national average (38 years).
What age groups are over-represented in the Balgowlah - Clontarf - Seaforth SA2?
The most over-represented age group in the Balgowlah - Clontarf - Seaforth SA2 compared to the Greater Sydney region is the 45 - 54 group, making up 16.5% of the population.
What age groups are under-represented in the Balgowlah - Clontarf - Seaforth SA2?
The most under-represented age group in the Balgowlah - Clontarf - Seaforth SA2 compared to the Greater Sydney region is the 25 - 34 group, making up 7.5% of the population.
Are there age groups with notable population variances?
Yes, certain age groups in the Balgowlah - Clontarf - Seaforth SA2 show significant variance compared to the Greater Sydney region. The most over-represented age group is 45-54 year-olds (16.5% vs 12.2%). The most under-represented age group is 25-34 year-olds (7.5% vs 16.1%).
What is the percentage of children (0-14 years) in the Balgowlah - Clontarf - Seaforth SA2?
The percentage of children aged 0-14 years in the Balgowlah - Clontarf - Seaforth SA2 is 19.0%.
What is the percentage of older people (65+ years) in the Balgowlah - Clontarf - Seaforth SA2?
The percentage of people aged 65 and over in the Balgowlah - Clontarf - Seaforth SA2 is 16.8%.

Data & MethodBoundaries, Sources & Method for Balgowlah - Clontarf - Seaforth

Data currency Refreshed

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 SA2 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, State agencies, Local governments Daily Aug 2026 this month all 9 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 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 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 — 67 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (20,732 at the 2021 Census → 20,936 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 (122011418). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.

Common questions about this page

Why can the Balgowlah - Clontarf - Seaforth SA2 boundary differ from the suburb boundary?
This page uses ABS Statistical Area Level 2 (SA2) boundaries for statistical reporting (e.g., census and ERP). SA2 areas can differ materially from Suburbs and Localities (SAL) boundaries, even when they share similar names, because they are defined for different purposes and often use different geographic boundaries.
Where does the data on this Balgowlah - Clontarf - Seaforth page come from?
AreaSearch compiles this page from official and industry sources — including ABS, Geoscience Australia, Valuer General, Provider directories, DEWR, JSA, State Transport Departments and ACARA — then aggregates them to the boundary shown and calculates the rankings, growth rates and benchmarks itself. Property sales come from the state valuation authority, rents from state rental bond lodgements, development applications from council and state planning portals, school data from ACARA, and public transport from state transport departments.
Is the Balgowlah - Clontarf - Seaforth data on this page just from the 2021 Census?
No. Most of this page is maintained well beyond the Census. Sourced entirely from current releases: development & approvals (Jun 2026), property sales & rents (Aug 2026), infrastructure projects (Aug 2026) and services & amenities (Jul 2026). Built on a Census baseline but carrying newer measures on top: population (to May 2026), age profile (to May 2026), employment (to Mar 2026), income (to FY 2023), education (to Aug 2026), transport (to Jul 2026) and health (to 2024). Population and age cohorts in particular are re-based to the latest ABS Estimated Resident Population rather than left at 2021 counts. Only housing, households and cultural diversity remain wholly Census-based, because no more current small-area dataset exists for those measures.

Nearby Areas