Gillieston Heights, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Around the national middle
Gillieston Heights is more socio-economically advantaged than about 42% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 974, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Gillieston Heights at a glance
- Population (2021)
- 4,796
- Median age
- 30
- Median weekly household income
- $1,986
- SEIFA score
- 974
- Coordinates
- -32.7609, 151.5199
Gillieston Heights demographics (2021 Census)
The figures below profile Gillieston Heights using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is young adults (25–44) at 37%, 38% of homes are rented, and 10% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 1,289 | 27% |
| Youth (15–24) | 543 | 11% |
| Young adults (25–44) | 1,770 | 37% |
| Mid-life (45–64) | 755 | 16% |
| Seniors (65+) | 444 | 9% |
Share of the 4,801 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 311 | 18% |
| Owned with a mortgage | 698 | 41% |
| Rented | 638 | 38% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,443 | 85% |
| Townhouses & semis | 126 | 7% |
| Flats & apartments | 6 | 0% |
Tenure and dwelling shares are of the roughly 1,690 occupied private dwellings in Gillieston Heights.
- Median weekly rent
- $430
- Median monthly mortgage
- $1,950
- Average household size
- 2.8 people
- Median weekly family income
- $2,159
- Median weekly personal income
- $947
Community and culture
- Born overseas
- 459 (10%)
- Speaks a language other than English at home
- 335 (7%)
- Aboriginal and/or Torres Strait Islander
- 380 (8%)
Work and education
- Completed Year 12
- 1,675 (49%)
- Labour-force participation
- 73.4%
- Unemployment rate
- 4.6%
- Employed full-time
- 1,508
- Employed part-time
- 753
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Gillieston Heights
Based on 2014–2023 records, the warmest month in Gillieston Heights is January (average daytime high around 30.1°C) and the coolest is July (around 17.4°C). The area receives roughly 773 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 30.1°C | 19.4°C | 75 mm |
| Feb | 28.6°C | 18.9°C | 79 mm |
| Mar | 26.8°C | 17.8°C | 133 mm |
| Apr | 23.6°C | 14.3°C | 62 mm |
| May | 20.4°C | 10.8°C | 29 mm |
| Jun | 17.4°C | 8.7°C | 44 mm |
| Jul | 17.4°C | 7.7°C | 44 mm |
| Aug | 18.8°C | 8.1°C | 41 mm |
| Sep | 22°C | 10.5°C | 47 mm |
| Oct | 25°C | 13.4°C | 74 mm |
| Nov | 26.7°C | 15.4°C | 67 mm |
| Dec | 29°C | 17.7°C | 78 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Gillieston Heights
Where is Gillieston Heights?
Gillieston Heights is a suburb of New South Wales, Australia.
What is the population of Gillieston Heights?
At the 2021 Census, Gillieston Heights had a population of about 4,796.
Is Gillieston Heights an advantaged area?
Gillieston Heights has an ABS SEIFA score of 974, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 42 out of 100 — more socio-economically advantaged than about 42% of Australian suburbs.
What is the weather like in Gillieston Heights?
Gillieston Heights has average daytime highs of about 23.8°C and overnight lows of about 13.6°C, with roughly 773 mm of rain across the year (based on 2014–2023 climate normals).
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