Birrong

Population growth drivers in Birrong are slightly above average based on AreaSearch's ranking of recent, and medium term trends

Based on analysis of ABS population updates for the broader area, and new addresses validated by AreaSearch, Birrong's population is estimated at around 3,597 as of Nov 2025. This reflects an increase of 266 people (8.0%) since the 2021 Census, which reported a population of 3,331 people. The change is inferred from the resident population of 3,461 estimated by AreaSearch following examination of the latest ERP data release by the ABS in Jun 2024 and an additional 18 validated new addresses since the Census date. This level of population equates to a density ratio of 2,997 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Birrong's 8.0% growth since the 2021 census exceeded the SA4 region (7.5%) and the state, marking it as a growth leader in the region. Population growth for the area was primarily driven by overseas migration that contributed approximately 62.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in Jun 2024 with 2022 as the base year. For any SA2 areas not covered by this data, AreaSearch is utilising NSW State Government's SA2 level projections, 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. Future population trends indicate a population increase just below the median of national statistical areas, with the area expected to increase by 361 persons to 2041 based on aggregated SA2-level projections, reflecting a gain of 6.7% in total over the 17 years.

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

Birrong has seen approximately 15 new homes approved annually over the past five financial years, totalling an estimated 77 homes. As of FY26, 20 approvals have been recorded. On average, around 1.7 new residents arrive per new home annually between FY21 and FY25, suggesting balanced supply and demand in Birrong's housing market. However, this ratio has intensified to 5.7 people per dwelling over the past two financial years, indicating growing popularity and potential undersupply. Development projects in Birrong have an average construction value of $436,000, slightly above the regional average.

This year, $4.2 million in commercial approvals have been registered, suggesting limited focus on commercial development. Compared to Greater Sydney, Birrong has 19.0% less new development per person and ranks among the 48th percentile nationally, offering more limited housing choices for buyers. New building activity consists of 53.0% detached dwellings and 47.0% attached dwellings, with a growing mix of townhouses and apartments providing options across different price points. This shift reflects reduced availability of development sites and addresses changing lifestyle demands and affordability requirements, differing from the current housing mix which is predominantly houses (84.0%).

Birrong has approximately 345 people per dwelling approval, indicating an established area. By 2041, population forecasts estimate Birrong will gain around 240 residents. With current construction levels, housing supply should meet demand adequately, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

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

No infrastructure changes will influence this area's performance more than local projects and planning initiatives. AreaSearch has identified zero such projects that could impact this area. Key projects include Sydney Metro Bankstown Line Conversion, 101-103 Hector Street Sefton, Salt Pan Creek Channel Repairs, and New Bankstown Hospital.

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Employment drivers in Birrong are experiencing difficulties, placing it among the bottom 20% of areas assessed across Australia

Birrong has a skilled workforce with diverse sector representation. Its unemployment rate was 10.1% in the past year, with an estimated employment growth of 2.5%.

As of September 2025, 1,438 residents were employed, but the unemployment rate was higher than Greater Sydney's at 5.9%, indicating room for improvement. Workforce participation lagged significantly at 45.1% compared to Greater Sydney's 60.0%. The dominant employment sectors included health care & social assistance, retail trade, and manufacturing. Transport, postal & warehousing had notably high concentration with employment levels at 1.7 times the regional average.

However, professional & technical services were under-represented at 6.8% compared to Greater Sydney's 11.5%. The area seemed to offer limited local employment opportunities as indicated by Census data. In the 12-month period ending September 2025, employment increased by 2.5%, while labour force grew by 3.7%, causing unemployment to rise by 1.1 percentage points. For comparison, Greater Sydney recorded employment growth of 2.1% and unemployment rose by 0.2 percentage points. State-level data from NSW as of 25-Nov-25 showed employment contracting by 0.03% (losing 2,260 jobs), with the state unemployment rate at 3.9%. National employment forecasts from Jobs and Skills Australia indicated national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Birrong's employment mix suggested local employment should increase by 6.3% over five years and 13.3% over ten years, though these are simple extrapolations for illustrative purposes only.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

Birrong suburb's median taxpayer income was $42,712 and average was $54,436 in financial year 2023. This is lower than Greater Sydney's median of $60,817 and average of $83,003. By September 2025, estimated median income is approximately $46,496 and average is $59,259, considering an 8.86% Wage Price Index growth since financial year 2023. In 2021 Census figures, individual incomes were at the 6th percentile ($548 weekly), while household incomes were at the 39th percentile. Income brackets showed that 31.2% of Birrong residents earned between $1,500 and $2,999 per week (1,122 individuals). Housing affordability pressures were severe; only 82.2% of income remained after housing costs, ranking at the 39th percentile.

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

Birrong's dwelling structure, as per the latest Census, consisted of 83.7% houses and 16.3% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Sydney metro had 61.5% houses and 38.4% other dwellings. Birrong's home ownership rate was 38.3%, with mortgaged dwellings at 29.4% and rented ones at 32.3%. The median monthly mortgage repayment in Birrong was $2,033, below Sydney metro's $2,240. The median weekly rent was $440, compared to Sydney metro's $425. Nationally, Birrong's mortgage repayments were higher at $1,863 and rents substantially above the national figure of $375.

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

Family households constitute 78.7% of all households, including 43.2% couples with children, 18.3% couples without children, and 15.0% single parent families. Non-family households account for the remaining 21.3%, with lone person households at 18.1% and group households comprising 3.4% of the total. The median household size is 3.2 people, which is larger than the Greater Sydney average of 3.1.

Educational outcomes in Birrong fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area's university qualification rate is 24.7%, significantly lower than Greater Sydney's average of 38.0%. Bachelor degrees are the most common at 18.0%, followed by postgraduate qualifications (5.1%) and graduate diplomas (1.6%). Vocational credentials are prevalent, with 26.5% of residents aged 15+ holding them, including advanced diplomas (10.6%) and certificates (15.9%). Educational participation is high at 32.3%, comprising primary education (10.1%), secondary education (8.7%), and tertiary education (7.1%).

Educational participation is notably high, with 32.3% of residents currently enrolled in formal education. This includes 10.1% in primary education, 8.7% in secondary education, and 7.1% pursuing tertiary education.

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

Birrong has 20 active public transport stops offering a mix of train and bus services. These stops are served by 9 different routes, together facilitating 2,449 weekly passenger trips. Residents enjoy excellent transport accessibility, with an average proximity of 174 meters to the nearest stop.

The service frequency is 349 trips per day across all routes, translating to about 122 weekly trips per individual stop.

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

Analysis of health metrics shows strong performance throughout Birrong, with younger cohorts particularly having a very low prevalence of common health conditions. The rate of private health cover is found to be very low at approximately 49% of the total population (around 1,744 people), compared to the national average of 55.7%.

The most common medical conditions in the area are asthma and arthritis, impacting 6.3 and 5.9% of residents respectively, while 75.5% of residents declare themselves completely clear of medical ailments, similar to the Greater Sydney average of 75.8%. As of 2016, 15.8% of Birrong's residents are aged 65 and over (around 568 people). Health outcomes among seniors require more attention than those in the broader population, despite being above average.

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

Birrong has a culturally diverse population, with 49.8% born overseas and 68.9% speaking a language other than English at home. Christianity is the main religion in Birrong, comprising 37.7%. Buddhism is overrepresented compared to Greater Sydney's average, making up 14.2%.

The top three ancestry groups are Other (20.3%), Vietnamese (17.4%), and Chinese (15.0%), all higher than regional averages. Lebanese (10.5%) and Macedonian (1.9%) are notably overrepresented compared to regional figures, while Korean is slightly above average at 0.8%.

Birrong's population is slightly younger than the national pattern

Birrong's median age is 36 years, nearly matching Greater Sydney's average of 37 years. This is modestly below the Australian median age of 38 years. Compared to Greater Sydney, Birrong has a higher proportion of residents aged 55-64 (12.6%) but fewer residents aged 35-44 (12.7%). Between the 2021 Census and now, the 75 to 84 age group has increased from 3.9% to 4.9% of Birrong's population. Conversely, the 55 to 64 cohort has decreased from 13.4% to 12.6%. By 2041, demographic modeling suggests Birrong's age profile will change significantly. The 75 to 84 age group is projected to grow by 72%, adding 127 residents to reach 304. Residents aged 65 and above are expected to drive 77% of population growth, highlighting demographic aging trends. Meanwhile, the 25 to 34 and 0 to 4 age cohorts are projected to experience population declines.