Suburb profile · ABS Census 2021
Birrong suburb profile
Birrong, NSW · Postcode 2143
This Birrong suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Birrong, NSW (postcode 2143). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Birrong with nearby suburbs.
Birrong at a glance
Population
3,331
Median rent
$440/wk
Household income
$1,575/wk
Median age
36
Birrong trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
+14.9% over 10 years
Population
3,331
was 3,103 in 2016
+228 · +7.3%
Median rent
$440/wk
was $430/wk in 2016
+$10 · +2.3%
Household income
$1,575/wk
was $1,373/wk in 2016
+$202 · +14.7%
Median age
36
was 35 in 2016
+1 · +2.9%
Dig deeper: Birrong population growth · Birrong then and now
Birrong vs nearby & Greater Sydney
Median Census 2021 figures for Birrong, nearby suburbs (8), and the Sydney metro median (suburbs with 1,000+ people).
Rent
-10.2% vs area
- Birrong$440/wk
- Nearby$405/wk
- Sydney$490/wk
Household income
-25.7% vs area
- Birrong$1,575/wk
- Nearby$1,680.5/wk
- Sydney$2,119.5/wk
Median age
-10% vs area
- Birrong36
- Nearby32
- Sydney40
Personal income
-39.3% vs area
- Birrong$548/wk
- Nearby$709/wk
- Sydney$903.5/wk
Nearby uses the same postcode first, then larger suburbs in NSW. See Sydney rankings.
Socio-economic profile
How Birrong compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Birrong sits below average for socio-economic advantage compared with suburbs Australia-wide. It shows limited economic resources.
Relative disadvantage (IRSD)
Decile 1895.4
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 3948.7
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 2951.5
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 5974.9
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Birrong on the map
OpenStreetMap outline for Birrong, NSW.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Birrong people
- Population
- 3,331
- Median age
- 36
- Born overseas
- 47.2%
- Average household size
- 3.2
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Birrong income
- Median household income
- $1,575/wk
- Median personal income
- $548/wk
Median total weekly household income
Median total weekly personal income
Birrong housing
- Median rent
- $440/wk
- Median mortgage repayment
- $2,033/mo
- Separate houses
- 80.1%
- Flats & apartments
- 5.3%
- Owned outright
- 36%
- Mortgaged
- 27.4%
- Rented
- 29.7%
- Unoccupied dwellings
- 3.7%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Birrong work
- Employment to population
- 41.1%
- Unemployment rate
- 9.1%
- Year 12 or above
- 60%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 2143)
Compare Birrong with nearby suburbs
Birrong in numbers
Birrong had 3,331 residents at the 2021 Census. The median age is 36, 12% below the typical NSW suburb. The average household has 3.2 people. 47.2% of residents were born overseas.
Among occupied homes, 36% own their home outright, 27.4% are paying a mortgage, 29.7% rent. Separate houses make up 80.1% of dwellings, with 5.3% in flats or apartments. Median rent was $440/wk, 10% above the typical NSW suburb.
Median household income was $1,575/wk, 13% below the typical NSW suburb. The unemployment rate on Census night was 9.1%. 60% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 1 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 7.3% (from 3,103 to 3,331). Median rent moved from $430/wk to $440/wk (+2.3%).
Birrong suburb FAQs
- What is the median rent in Birrong, NSW?
- The median weekly rent in Birrong was $440/wk at the 2021 Census (ABS).
- How many people live in Birrong, NSW?
- Birrong had 3,331 residents at the 2021 Census, up 7.3% from 2016.
- What is the median household income in Birrong?
- Median household income in Birrong was $1,575/wk at the 2021 Census.
- Do most people rent or own in Birrong?
- 29.7% of occupied homes in Birrong were rented, 36% were owned outright and 27.4% were owned with a mortgage.
About this Birrong suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Birrong. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology · Richest suburbs in Sydney