Suburb profile · ABS Census 2021
Illawong suburb profile
Illawong, NSW · Postcode 2234
This Illawong suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Illawong, NSW (postcode 2234). 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 Illawong with nearby suburbs.
Illawong at a glance
Population
7,427
Median rent
$650/wk
Household income
$2,778/wk
Median age
44
Illawong 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
+1% over 10 years
Population
7,427
was 7,271 in 2016
+156 · +2.1%
Median rent
$650/wk
was $620/wk in 2016
+$30 · +4.8%
Household income
$2,778/wk
was $2,466/wk in 2016
+$312 · +12.7%
Median age
44
was 43 in 2016
+1 · +2.3%
Dig deeper: Illawong population growth · Illawong then and now
Illawong vs nearby & Greater Sydney
Median Census 2021 figures for Illawong, nearby suburbs (8), and the Sydney metro median (suburbs with 1,000+ people).
Rent
+32.7% vs area
- Illawong$650/wk
- Nearby$605/wk
- Sydney$490/wk
Household income
+31.1% vs area
- Illawong$2,778/wk
- Nearby$2,675/wk
- Sydney$2,119.5/wk
Median age
+10% vs area
- Illawong44
- Nearby42.5
- Sydney40
Personal income
+9% vs area
- Illawong$985/wk
- Nearby$975.5/wk
- Sydney$903.5/wk
Nearby uses the same postcode first, then larger suburbs in NSW. See Sydney rankings.
Socio-economic profile
How Illawong compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Illawong ranks among Australia's most advantaged suburbs. It shows strong access to economic resources and high education and occupation levels.
Relative disadvantage (IRSD)
Decile 101,093
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 101,107.6
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 101,141.3
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 91,069.1
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Illawong on the map
OpenStreetMap outline for Illawong, NSW.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Illawong people
- Population
- 7,427
- Median age
- 44
- Born overseas
- 23.8%
- Average household size
- 3.1
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Illawong income
- Median household income
- $2,778/wk
- Median personal income
- $985/wk
Median total weekly household income
Median total weekly personal income
Illawong housing
- Median rent
- $650/wk
- Median mortgage repayment
- $2,976/mo
- Separate houses
- 89.5%
- Flats & apartments
- 2.6%
- Owned outright
- 48%
- Mortgaged
- 40%
- Rented
- 7.7%
- Unoccupied dwellings
- 3.5%
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
Illawong work
- Employment to population
- 60.6%
- Unemployment rate
- 3.1%
- Year 12 or above
- 65.7%
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 2234)
Compare Illawong with nearby suburbs
Illawong in numbers
Illawong had 7,427 residents at the 2021 Census, making it the 317th most populous suburb or locality in NSW out of 4,347. The median age is 44, 7% above the typical NSW suburb. The average household has 3.1 people. 23.8% of residents were born overseas.
Among occupied homes, 48% own their home outright, 40% are paying a mortgage, 7.7% rent. Separate houses make up 89.5% of dwellings, with 2.6% in flats or apartments. Median rent was $650/wk, 63% above the typical NSW suburb.
Median household income was $2,778/wk, 54% above the typical NSW suburb. The unemployment rate on Census night was 3.1%. 65.7% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 10 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 2.1% (from 7,271 to 7,427). Median rent moved from $620/wk to $650/wk (+4.8%).
Illawong suburb FAQs
- What is the median rent in Illawong, NSW?
- The median weekly rent in Illawong was $650/wk at the 2021 Census (ABS).
- How many people live in Illawong, NSW?
- Illawong had 7,427 residents at the 2021 Census, up 2.1% from 2016.
- What is the median household income in Illawong?
- Median household income in Illawong was $2,778/wk at the 2021 Census.
- Do most people rent or own in Illawong?
- 7.7% of occupied homes in Illawong were rented, 48% were owned outright and 40% were owned with a mortgage.
About this Illawong suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Illawong. 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