Birchgrove (NSW)

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Based on evaluation of ABS demographic updates for the wider region alongside address records validated by Districts since the Census, the resident population of Birchgrove is estimated to be approximately 3,310 as of May 2026. This represents a growth of 82 residents (2.5%) compared to the 2021 Census, which recorded 3,228 individuals. This demographic shift is calculated from the estimated resident headcount of 3,310, derived by Districts from the ABS June 2025 release of ERP data and address tracking post-Census. With these numbers, the local population density reaches 5,610 persons per square kilometer, placing the area in the top 10% of all Australian locations analyzed by Districts and highlighting the high demand for local land. The 2.5% increase post-Census is within 1.6 percentage points of the broader SA3 region (4.1%), indicating competitive growth characteristics. The main driver of population gains in recent times was overseas migration, which accounted for roughly of the total growth.

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Birchgrove is characterized by a highly educated workforce with strong representation in the technology industry and a very low unemployment rate of 1.9%, according to statistical area data compiled by Districts. In March 2026, there were 1,946 employed residents, while the unemployment rate was 2.2% lower than the Greater Sydney average of 4.1%. The rate of workforce participation is close to the Greater Sydney average of 69.1%. Census records show that a high proportion of residents, 68.7%, worked from home, though this may have been influenced by pandemic-related lockdowns.

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The latest postcode-level ATO statistics for the 2023 financial year show that incomes in the suburb of Birchgrove rank in the highest percentile nationally, with a median of $91,183 and an average of $169,838. In comparison, Greater Sydney recorded a median income of $60,817 and an average of $83,003. Adjusting these figures for a Wage Price Index increase of 10.32% since the 2023 financial year results in estimated figures of approximately $100,593 for the median and $187,365 for the average as of March 2026. According to Census data, household, family, and personal incomes in Birchgrove are all exceptionally high, falling between the 99th and 99th percentiles across the country. The statistics indicate that 47.1% of the population (1,559 people) falls into the weekly earnings bracket of $4000+, unlike the broader region where the - range is most common at . A substantial of residents earn more than per week, indicating high local affluence that supports economic activity. After housing costs are paid, residents keep of their income, demonstrating high purchasing power and placing the area in the th decile for the SEIFA income index.

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The local housing stock at the time of the latest Census consisted of 28.4% detached houses and 71.5% semi-detached properties, apartments, and other dwellings, compared to the Sydney metropolitan average of 55.9% detached houses and 44.1% other dwelling types. The home ownership rate in Birchgrove was high at 41.8%, with the remaining properties occupied by residents with a mortgage (30.5%) or tenants renting their homes (27.8%). The median monthly mortgage payment in the area was significantly higher than the Sydney metro average, standing at $4,000, while the median weekly rent was $700, compared to regional figures of $2,427 and $470 respectively. Nationally, mortgage payments in Birchgrove are much higher than the Australian average of $1,863, and rents are also well above the national median of $375.

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Families make up 72.4% of all local households, consisting of 32.7% couples with children, 32.1% couples without children, and 6.7% single parents. Non-family households account for the remaining 27.6%, with single-person households representing 25.1% and group households making up 2.2% of the total. The median household size is 2.4 residents, which is smaller than the Greater Sydney average of 2.7.

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The level of education in Birchgrove is significantly higher than regional and national averages, with 65.5% of residents aged 15 and over holding a university qualification, compared to 30.4% in Australia and 32.2% in NSW. This educational profile positions the community well for professional services and knowledge-based jobs. Bachelor degrees are the most common qualification at 39.3%, followed by postgraduate degrees at 21.5% and graduate diplomas at 4.7%. Vocational education accounts for 15.8% of qualifications among residents aged 15 and over, comprising advanced diplomas at 8.5% and certificates at 7.3%.

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Public transport options in Birchgrove include 14 active stops, combining ferry and bus services. These stops are served by 4 different routes, which together handle 1,678 passenger trips each week. Transport access is rated as excellent, with residents living an average of 169 meters from their nearest stop. Being a mostly residential suburb, the majority of commuters travel outside the area. Private vehicles are the main transport method at 70%, with 10% walking and 8% using buses. Car ownership stands at an average of 0.9 vehicles per household, which is below the regional average. A high proportion of residents, 68.7%, worked from home according to the 2021 Census, which may have been influenced by pandemic conditions.

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Health statistics show excellent outcomes in Birchgrove based on Districts' evaluation of mortality and chronic disease trends, which indicate a very low incidence of common health issues across all age groups. Furthermore, the rate of private health insurance is exceptionally high at roughly 94% of the population (3,100 people). This compares to a rate of 59.9% across Greater Sydney and a national average of 55.7%.

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Birchgrove shows higher cultural diversity than average, with 9.5% of residents speaking a language other than English at home and 29.0% born outside Australia. Christianity is the primary religion, representing 41.6% of the population. The most distinct relative overrepresentation is for Judaism, which accounts for 0.7% of residents compared to 0.8% across Greater Sydney.

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The median age of 46 years in Birchgrove is higher than the Greater Sydney average of 37 and the national median of 38. Compared to Greater Sydney, the 55 - 64 age bracket is overrepresented at 15.5% of the local population, while the 25 - 34 bracket is underrepresented at 9.1%. Since the 2021 Census, the proportion of residents aged 15 to 24 grew from 8.3% to 10.3%, and the 75 to 84 bracket increased from 6.1% to 8.0%. On the other hand, the 5 to 14 cohort decreased from 12.4% to 10.7%, and the 45 to cohort fell from to . Demographic projections for indicate significant shifts for Birchgrove. The to age group is expected to grow by people (), rising from to . The aging trend is pronounced, with residents aged and older accounting for of the projected population growth. Conversely, the to and to age brackets are projected to contract.

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Birchgrove currently has an estimated 145 children under 5 years old, comprising approximately 94 children aged 0-2 and 62 children aged 3-4. This cohort declined by an estimated 10% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 9% by 2041 (to approximately 132 children). Meanwhile the 5-12 cohort currently amounts to 251. Birth rates in the area have averaged 10.6 per 1,000 residents over the latest two-year period, a moderate rate (within the middle tier nationally). This rate has slowed down slightly in recent years however.