Suburb profile · ABS Census 2021
Gillieston Heights suburb profile
Gillieston Heights, NSW · Postcode 2321
This Gillieston Heights suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Gillieston Heights, NSW (postcode 2321). 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 Gillieston Heights with nearby suburbs.
Gillieston Heights at a glance
Population
4,796
Median rent
$430/wk
Household income
$1,986/wk
Median age
30
Gillieston Heights 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
+284.6% over 10 years
Population
4,796
was 3,150 in 2016
+1,646 · +52.3%
Median rent
$430/wk
was $395/wk in 2016
+$35 · +8.9%
Household income
$1,986/wk
was $1,712/wk in 2016
+$274 · +16%
Median age
30
was 29 in 2016
+1 · +3.4%
Dig deeper: Gillieston Heights population growth · Gillieston Heights then and now
Gillieston Heights vs nearby & NSW
Median Census 2021 figures for Gillieston Heights, nearby suburbs (8), and the NSW state median (suburbs with 1,000+ people).
Rent
+2.4% vs area
- Gillieston Heights$430/wk
- Nearby$370/wk
- NSW$420/wk
Household income
+7.8% vs area
- Gillieston Heights$1,986/wk
- Nearby$2,074/wk
- NSW$1,843/wk
Median age
-25% vs area
- Gillieston Heights30
- Nearby37.5
- NSW40
Personal income
+17.2% vs area
- Gillieston Heights$947/wk
- Nearby$867/wk
- NSW$808/wk
Nearby uses the same postcode first, then larger suburbs in NSW.
Socio-economic profile
How Gillieston Heights compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Gillieston Heights sits around the national middle for socio-economic advantage. It shows lower education and occupation levels.
Relative disadvantage (IRSD)
Decile 51,009.1
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 5973.8
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 71,041.6
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 3935.4
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Gillieston Heights on the map
OpenStreetMap outline for Gillieston Heights, NSW.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Gillieston Heights people
- Population
- 4,796
- Median age
- 30
- Born overseas
- 9.6%
- Average household size
- 2.8
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Gillieston Heights income
- Median household income
- $1,986/wk
- Median personal income
- $947/wk
Median total weekly household income
Median total weekly personal income
Gillieston Heights housing
- Median rent
- $430/wk
- Median mortgage repayment
- $1,950/mo
- Separate houses
- 83.1%
- Flats & apartments
- 0.3%
- Owned outright
- 17.9%
- Mortgaged
- 40.2%
- Rented
- 36.8%
- Unoccupied dwellings
- 2.8%
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
Gillieston Heights work
- Employment to population
- 70%
- Unemployment rate
- 4.6%
- Year 12 or above
- 49.3%
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 2321)
Compare Gillieston Heights with nearby suburbs
Gillieston Heights in numbers
Gillieston Heights had 4,796 residents at the 2021 Census. The median age is 30, 27% below the typical NSW suburb. The average household has 2.8 people. 9.6% of residents were born overseas.
Among occupied homes, 17.9% own their home outright, 40.2% are paying a mortgage, 36.8% rent. Separate houses make up 83.1% of dwellings, with 0.3% in flats or apartments. Median rent was $430/wk, 8% above the typical NSW suburb.
Median household income was $1,986/wk, 10% above the typical NSW suburb. The unemployment rate on Census night was 4.6%. 49.3% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 5 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 52.3% (from 3,150 to 4,796). Median rent moved from $395/wk to $430/wk (+8.9%).
Gillieston Heights suburb FAQs
- What is the median rent in Gillieston Heights, NSW?
- The median weekly rent in Gillieston Heights was $430/wk at the 2021 Census (ABS).
- How many people live in Gillieston Heights, NSW?
- Gillieston Heights had 4,796 residents at the 2021 Census, up 52.3% from 2016.
- What is the median household income in Gillieston Heights?
- Median household income in Gillieston Heights was $1,986/wk at the 2021 Census.
- Do most people rent or own in Gillieston Heights?
- 36.8% of occupied homes in Gillieston Heights were rented, 17.9% were owned outright and 40.2% were owned with a mortgage.
About this Gillieston Heights suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Gillieston Heights. 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