Birrong
At just 1.2 km2, Birrong packs in 3,331 residents at a density of 2,786 people per km2, yet 83.7% of dwellings are separate houses, an unusual combination for inner-western Sydney. The median house price reached $1,320,000, while nearly half the population was born overseas, 28.2 percentage points above the national figure. Household income sits at the 51.4th percentile nationally, close to average, but SEIFA tells a more complex story: the IRSD disadvantage decile is 1, placing Birrong among the most disadvantaged suburbs in Australia despite those mid-range incomes.
Population
3,331
Median Age
36.0
Household IncomeiMedian weekly household income (ABS Census)
$1,575/wk
DAs (12 months)iDevelopment Applications lodged in the past year
29
Median House
$1.3M
2024-2025 (PSI derived)
The median house price is $1,320,000, supported by price history showing a rise from $1,291,000 in 2024 to $1,440,000 in 2025, an 11.5% gain in one year. Monthly mortgage repayments average $2,033, and mortgage-to-income sits at 29.8%, just below the 30% stress threshold, indicating reasonable serviceability compared to many Sydney suburbs. Separate houses dominate at 83.7% of stock, with semi-detached dwellings at 10.8% and apartments at only 5.5%. Bedroom distribution skews larger: 44.8% are three-bedroom and 36.7% are four-plus-bedroom homes, well above national norms. Outright owners account for 38.7% of households, higher than the mortgage-holder share of 29.4%, which points to long-held family ownership rather than recent buyer activity.
For Buyers
The median house price is $1,320,000, supported by price history showing a rise from $1,291,000 in 2024 to $1,440,000 in 2025, an 11.5% gain in one year. Monthly mortgage repayments average $2,033, and mortgage-to-income sits at 29.8%, just below the 30% stress threshold, indicating reasonable serviceability compared to many Sydney suburbs. Separate houses dominate at 83.7% of stock, with semi-detached dwellings at 10.8% and apartments at only 5.5%. Bedroom distribution skews larger: 44.8% are three-bedroom and 36.7% are four-plus-bedroom homes, well above national norms. Outright owners account for 38.7% of households, higher than the mortgage-holder share of 29.4%, which points to long-held family ownership rather than recent buyer activity.
For Investors
Renters make up 31.9% of households, providing a consistent tenant base, and weekly rent averages $440. Against the $1,320,000 median, that implies a gross yield near 1.7%, modest but not unusual for western Sydney detached housing. Vacancy sits at 3.7%, slightly above typical tight-market levels, suggesting moderate rather than strong rental absorption. Overseas migration drives population growth at a net 297 arrivals per year, compared to net internal outflow of 198, so demand is sustained by international residents rather than intrastate movement. Development activity recorded 26 applications in the past 12 months, including secondary dwellings and subdivisions, which signals incremental densification consistent with an established suburb showing early gentrification signals.
Development Activity
Total DAs
135
Last 12 Months
29
YoY ChangeiYear-over-year change in DA lodgements
-14.7%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Birrong iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Birrong Public School
K-6 · 451 students
Birrong Girls High School
7-12 · 726 students
Birrong Boys High School
7-12 · 366 students
Demographics
The median age is 36, which is 4.0 years below the national figure, reflecting a relatively young resident base. Overseas-born residents reach 49.8%, compared to the national average, a gap of 28.2 percentage points, one of the most internationally sourced populations in NSW. Leading ancestry groups are Vietnamese (645 residents), Chinese (559), Lebanese (392) and English (330). Arabic is the most spoken non-English language (306 speakers), followed by Mandarin (128) and Cantonese (67). University qualifications reach 38.0%, which is 7.9 points above national, suggesting a more educated population than the SEIFA decile 1 disadvantage score implies. Average household size is 3.2 persons, 0.7 above the national figure, consistent with the high share of couples-with-children families (1,176 of 2,780 total family units).
Age Distribution
Bedrooms
Dwelling Structure
83.7%
Houses
10.8%
Townhouse
5.5%
Apartment
Tenure
Price history shows a clear upward move: $1,291,000 in 2024 rising to $1,440,000 in 2025, a one-year CAGR of 11.5%. The current median of $1,320,000 places Birrong in a mid-upper band for western Sydney detached stock. Tenure splits between outright owners (38.7%), mortgage holders (29.4%) and renters (31.9%), with outright ownership the largest single category, reflecting generational holding of family homes. The stock is overwhelmingly separate houses at 83.7%, leaving apartments at only 5.5%, so the suburb offers limited entry-level unit options. Four-plus-bedroom homes account for 36.7% of all dwellings, higher than state averages, aligning with the 3.2-person average household size. Mortgage stress is not flagged, with repayments averaging $2,033 per month against household income in the 51.4th percentile.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$2,033
Rent / wk
$440
HH Size
3.2
Personal Income / wk
$548
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
3.7%
Unoccupied
37
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
27.9%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
29.8%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
16.6%
Couples, no children
2,780
Total families
Economy & Employment
Healthcare is the dominant industry at 18.2% of local workers (124 people), followed by Education at 9.5% (65), Finance at 8.7% (59), Professional/Tech at 8.2% (56) and Manufacturing at 8.1% (55). By occupation, Professionals lead at 265 workers, with Clerical/Admin (169), Labourers (133) and Community/Personal (107) below. The unemployment rate is 11.0%, above typical Sydney benchmarks, and the participation rate is only 37.3%, which is low, with 1,304 residents not in the labour force. Full-time employment among those working runs at 65.1%. SEIFA deciles present a divergence: IRSD is decile 1 (most disadvantaged nationally), yet IEO (education and occupation) reaches decile 5, indicating the workforce has credentials but the broader socioeconomic base reflects disadvantage through low income concentration and high need-for-assistance rates.
Unemployment
9.1%
Labour Force
10,785
Unemployed
979
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
65.1%
Part-time
23.9%
Participation
37.3%
Employed
891
Occupations
Top Industries
University
38.0%
Postgraduate
8.3%
Born Overseas
49.8%
Dwellings
962
Transport to Work
Car dependence is high: 83.6% of residents drive to work, compared to national figures, while only 8.1% use public transport and 2.3% walk or cycle. The IRSAD decile is 3, meaning Birrong ranks in the lower third nationally on the combined advantage-disadvantage index, and IRSD decile 1 places it among the most disadvantaged suburbs in Australia. Housing stress indicators are not flagged: rent-to-income is 27.9% and mortgage-to-income is 29.8%, both below the 30% threshold, which is more positive than the SEIFA scores suggest. About 7.2% of residents (226 people) need daily assistance, above average. No schools are recorded inside the suburb boundary, so families rely on schools in neighbouring areas. Volunteering participation stands at 7.1%.
Drive
83.6%
Public Transport
8.1%
Walk / Cycle
2.3%
Work from Home
N/A
Population Forecast
+1.1%/yr
(+261 people/yr)
EstablishedBirrong's population grew 18.6% over the past decade, well above most established suburbs nationally, and current annual growth runs at 1.1%, adding roughly 261 people per year. The SA2-level historical data shows a rise from 23,053 in 2023 to 23,744 in 2025, with medium forecasts projecting 25,289 by 2031. Overseas migration is the primary driver at a net 297 arrivals per year, while net internal migration runs at negative 198 annually, meaning residents choosing to move elsewhere are offset by international inflows. Gentrification is scored at 17 and classified as not gentrifying, yet early signals include the 33.3% rent growth over the period and real income growth of 10.1%. Affordability has held stable, shifting only from 76.9% to 75.8% between 2011 and 2021.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Overseas Migration
Net Overseas / yr
+297
Net Internal / yr
-198
Gentrification Signal
Not gentrifying
Population +20% since 2011, Net internal outflow -198/yr, Strong overseas inflow +297/yr
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Birrong compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Birrong a good suburb to live in?
Birrong offers affordable housing relative to many Sydney suburbs, with a median house price of $1,320,000 and mortgage-to-income of 29.8%, below the 30% stress threshold. SEIFA scores are low, with IRSD at decile 1, indicating significant disadvantage nationally, though university qualifications reach 38%, which is 7.9 points above the national figure.
What is the median house price in Birrong?
The median house price is $1,320,000 as of 2024-2025. Prices rose 11.5% from $1,291,000 in 2024 to $1,440,000 in 2025. Monthly mortgage repayments average $2,033, and weekly rent sits at $440.
What schools are in Birrong?
No schools are recorded inside the Birrong suburb boundary in this dataset. Families rely on schools in neighbouring areas. The local population is reasonably educated, with university qualifications at 38.0%, which is 7.9 points above the national average.
Is Birrong safe?
Detailed crime statistics are not available for Birrong in this dataset. As a contextual indicator, the suburb scores IRSD decile 1, the most disadvantaged tier nationally, and 7.2% of residents (226 people) need daily assistance, both factors that are typically associated with higher community needs.
Is Birrong good for property investment?
Birrong has a 31.9% renter share and weekly rent of $440, giving a gross yield near 1.7% against the $1,320,000 median. Price growth was 11.5% in one year (2024 to 2025). Overseas migration adds a net 297 residents per year, supporting rental demand. Vacancy sits at 3.7%, indicating moderate rather than tight conditions.
How is Birrong's population changing?
Population grew 18.6% over the past decade and is increasing at 1.1% annually, adding roughly 261 people per year. Overseas migration drives growth at a net 297 arrivals per year, while internal migration shows net outflow of 198. Medium forecasts project the SA2 population reaching 25,289 by 2031.
What languages are spoken in Birrong?
About 49.8% of residents were born overseas, which is 28.2 percentage points above the national figure. Arabic is the most spoken non-English language (306 speakers), followed by Mandarin (128), Cantonese (67), Urdu (29) and Macedonian (29), reflecting the suburb's strong Vietnamese, Chinese and Lebanese heritage communities.
How much development is happening in Birrong?
There were 26 development applications lodged in the past 12 months, including secondary dwellings, subdivisions and demolition and rebuild works. This volume of applications, particularly for secondary dwellings and subdivisions, points to incremental densification activity within the suburb's 1.2 km2 footprint.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
Explore Birrong on the Map
View parcels, zoning overlays, DA applications, schools and more.
Open Interactive Map