Balgowlah - Clontarf - Seaforth

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

Based on AreaSearch's analysis, Balgowlah - Clontarf - Seaforth's population is around 21,389 as of Feb 2026. This reflects an increase of 657 people (3.2%) since the 2021 Census, which reported a population of 20,732 people. The change is inferred from the estimated resident population of 20,884 from the ABS as of June 2024 and an additional 65 validated new addresses since the Census date. This level of population equates to a density ratio of 2,810 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Balgowlah - Clontarf - Seaforth's 3.2% growth since the census positions it within 0.3 percentage points of the SA4 region (3.5%), demonstrating competitive growth fundamentals. Population growth for the area was primarily driven by overseas migration, which contributed approximately 77.5% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, AreaSearch is utilising the NSW State Government's SA2 level projections, as released in 2022 with 2021 as the base year. Growth rates by age group from these aggregations are also applied to all areas for years 2032 to 2041. Regarding demographic trends, projections indicate a decline in overall population, with the area's population expected to shrink by 111 persons by 2041 according to this methodology. However, growth across specific age cohorts is anticipated, led by the 85 and over age group, which is projected to grow by 470 people. See the age section for more details.

Residential development activity is lower than average in Balgowlah - Clontarf - Seaforth according to AreaSearch's national comparison of local real estate markets

Balgowlah - Clontarf - Seaforth has recorded around 60 residential properties granted approval per year, with 304 homes approved over the past 5 financial years (between FY-21 and FY-25) and 36 so far in FY-26. As the area has experienced population decline, development activity has been adequate in relative terms, which is a positive for buyers, while new homes are being built at an average construction cost of $792,000, showing that developers are focusing on the premium market with high-end developments. Additionally, $18.6 million in commercial approvals have been registered this financial year, suggesting balanced commercial development activity.

Relative to Greater Sydney, Balgowlah - Clontarf - Seaforth shows moderately higher construction activity (23.0% above regional average per person over the 5 year period), maintaining good buyer choice while supporting existing property values. This activity is likewise lower than nationally, reflecting market maturity and pointing to possible development constraints. Recent construction comprises 51.0% standalone homes and 49.0% attached dwellings, showing an expanding range of medium-density options creating a mix of opportunities across price brackets, from traditional family housing to more affordable compact alternatives. The location has approximately 381 people per dwelling approval, reflecting an established area.

With population projections showing stability or decline, Balgowlah - Clontarf - Seaforth should see reduced housing demand pressures, benefiting potential buyers.

Balgowlah - Clontarf - Seaforth has strong levels of nearby infrastructure activity, ranking in the top 40% nationally

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total 14 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include the Stockland Balgowlah Shopping Centre Expansion & Residential, Totem Road Precinct - Balgowlah Heights, Seaforth Village Masterplan & Redevelopment, and Seaforth Public School Expansion & Modernisation, with the list below detailing those likely to be of 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.

While Balgowlah - Clontarf - Seaforth retains a healthy unemployment rate of 3.8%, recent employment declines have impacted its national performance ranking

Balgowlah - Clontarf - Seaforth has a highly educated workforce, with the technology sector a particular standout in terms of representation, and an unemployment rate of only 3.8%. As of December 2025, 11,209 residents are in work while the unemployment rate is 0.4% below Greater Sydney's rate of 4.2%, and workforce participation is broadly similar to Greater Sydney's 70.2%. Based on Census responses, a high 62.7% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

The dominant employment sectors among residents include professional & technical, finance & insurance, and health care & social assistance. The area demonstrates a particularly notable concentration in professional & technical, with employment levels at 1.7 times the regional average. Conversely, health care & social assistance shows lower representation at 11.0% versus the regional average of 14.1%. The predominantly residential area appears to offer limited employment opportunities locally, as indicated by the count of the Census working population versus the resident population.

Based on AreaSearch analysis of SALM and ABS data, over the 12 months to December 2025, labour force levels decreased by 0.2% while employment declined by 1.7%, causing the unemployment rate to rise by 1.4 percentage points. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%, with a marginal rise. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Balgowlah - Clontarf - Seaforth. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific projections to Balgowlah - Clontarf - Seaforth's employment mix suggests local employment should increase by 7.4% over five years and 14.7% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

According to AreaSearch's aggregation of the latest postcode level ATO data released for FY-23, the Balgowlah - Clontarf - Seaforth SA2 had a median income among taxpayers of $75,428 with the average level standing at $149,660. This is among the top percentile nationally and compares to levels of $60,817 and $83,003 across Greater Sydney respectively. Based on Wage Price Index growth of 8.86% since FY-23, current estimates would be approximately $82,111 (median) and $162,920 (average) as of September 2025. According to 2021 Census figures, household, family and personal incomes all rank highly in Balgowlah - Clontarf - Seaforth, between the 94th and 99th percentiles nationally. Looking at income distribution, 44.7% of the population (9,560 individuals) fall within the $4000+ income range, unlike trends in the region where 30.9% fall within the $1,500 - 2,999 range. The locality demonstrates considerable affluence with 55.4% earning over $3,000 per week, supporting premium retail and service offerings. Housing accounts for 14.9% of income while strong earnings rank residents within the 98th percentile for disposable income and the area's SEIFA income ranking places it in the 10th decile.

Balgowlah - Clontarf - Seaforth displays a diverse mix of dwelling types, with above-average rates of outright home ownership

Dwelling structure within Balgowlah - Clontarf - Seaforth, as evaluated at the latest Census, comprised 65.4% houses and 34.6% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Sydney metro's 55.9% houses and 44.1% other dwellings. Meanwhile, the level of home ownership within Balgowlah - Clontarf - Seaforth was well beyond that of Sydney metro, at 39.9%, with the remainder of dwellings either mortgaged (38.7%) or rented (21.4%). The median monthly mortgage repayment in the area was well above the Sydney metro average at $4,000, while the median weekly rent figure was recorded at $697, compared to Sydney metro's $2,427 and $470. Nationally, Balgowlah - Clontarf - Seaforth's mortgage repayments are significantly higher than the Australian average of $1,863, while rents are substantially above the national figure of $375.

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

Family households dominate at 80.0% of all households, comprising 45.8% couples with children, 24.8% couples without children, and 8.6% single parent families. Non-family households make up the remaining 20.0%, with lone person households at 17.4% and group households comprising 2.6% of the total. The median household size of 2.9 people is larger than the Greater Sydney average of 2.7.

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

Educational attainment in Balgowlah - Clontarf - Seaforth significantly surpasses broader benchmarks, with 51.9% of residents aged 15+ holding university qualifications compared to 30.4% in Australia and 32.2% in NSW. This substantial educational advantage positions the area strongly for knowledge-based opportunities. Bachelor degrees lead at 35.1%, followed by postgraduate qualifications (13.3%) and graduate diplomas (3.5%). Vocational pathways account for 22.0% of qualifications among those aged 15+ – advanced diplomas (11.2%) and certificates (10.8%).

Educational participation is notably high, with 33.2% of residents currently enrolled in formal education. This includes 11.3% in primary education, 10.4% in secondary education, and 6.0% pursuing tertiary education.

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

Public transport analysis reveals 208 active transport stops operating within Balgowlah - Clontarf - Seaforth, comprising a mix of buses. These stops are serviced by 73 individual routes, collectively providing 4,466 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 127 meters from the nearest transport stop. As a primarily residential area, most residents commute outward; the car remains the dominant mode at 79%, with 9% by bus and 5% walking. Vehicle ownership averages 1.4 per dwelling, which is above the regional average. A high 62.7% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 638 trips per day across all routes, equating to approximately 21 weekly trips per individual stop. The accompanying map shows the 100 nearest stops to the location centrepoint.

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

Health outcomes data demonstrates outstanding results across Balgowlah - Clontarf - Seaforth, based on AreaSearch's assessment of mortality rates and chronic condition prevalence. There is a very low prevalence of common health conditions across all age groups, and the rate of private health cover is exceptionally high at approximately 85% of the total population (18,159 people). This compares to 59.9% across Greater Sydney and a national average of 55.7%.

The most common medical conditions in the area were found to be asthma and arthritis, impacting 6.2 and 5.4% of residents, respectively, while 77.5% declared themselves as completely clear of medical ailments compared to 74.6% across Greater Sydney. The area has 17.1% of residents aged 65 and over (3,655 people), which is higher than the 15.4% in Greater Sydney. Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

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

Balgowlah - Clontarf - Seaforth is 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. The main religion in Balgowlah - Clontarf - Seaforth is Christianity, which makes up 51.5% of the population. However, the most apparent overrepresentation is in Judaism, which comprises 0.4% of the population, compared to 0.8% across Greater Sydney.

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 Australian at 1.3% (vs 0.5%), and Welsh at 0.9% (vs 0.4%).

Balgowlah - Clontarf - Seaforth's median age exceeds the national pattern

The 42-year median age in Balgowlah - Clontarf - Seaforth is significantly above Greater Sydney's average of 37 and similarly considerably older than Australia's 38 years. The 45 - 54 age group shows strong representation at 16.6% compared to Greater Sydney, whereas the 25 - 34 cohort is less prevalent at 6.8%. Post-2021 Census data shows the 15 to 24 age group has grown from 12.3% to 15.0% of the population, while the 55 to 64 cohort increased from 12.9% to 14.0%. Conversely, the 35 to 44 cohort has declined from 12.7% to 11.1% and the 5 to 14 group dropped from 16.1% to 15.0%. Population forecasts for 2041 indicate substantial demographic changes for Balgowlah - Clontarf - Seaforth. Leading the demographic shift, the 85+ group will grow by 76% (414 people), reaching 960 from 545. Notably, the combined 65+ age groups will account for 100% of total population growth, reflecting the area's aging demographic profile. In contrast, the 25 to 34 and 55 to 64 cohorts are expected to experience population declines.