Illaroo, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Illaroo is more socio-economically advantaged than about 83% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1049, 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.
Illaroo at a glance
- Population (2021)
- 41
- Median age
- 50
- Median weekly household income
- $1,624
- SEIFA score
- 1049
- Coordinates
- -34.8632, 150.4773
Illaroo demographics (2021 Census)
The figures below profile Illaroo 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 mid-life (45–64) at 52%, 0% of homes are rented, and 18% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 7 | 17% |
| Youth (15–24) | 7 | 17% |
| Young adults (25–44) | 0 | 0% |
| Mid-life (45–64) | 22 | 52% |
| Seniors (65+) | 6 | 14% |
Share of the 42 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 15 | 83% |
| Owned with a mortgage | 3 | 17% |
| Rented | 0 | 0% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 14 | 100% |
| Townhouses & semis | 0 | 0% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 14 occupied private dwellings in Illaroo.
- Median monthly mortgage
- $2,125
- Average household size
- 2.8 people
- Median weekly family income
- $2,083
- Median weekly personal income
- $624
Community and culture
- Born overseas
- 7 (18%)
- Speaks a language other than English at home
- 5 (12%)
- Aboriginal and/or Torres Strait Islander
- 0 (0%)
Work and education
- Completed Year 12
- 14 (47%)
- Labour-force participation
- 54.3%
- Employed full-time
- 12
- Employed part-time
- 8
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 Illaroo
Based on 2014–2023 records, the warmest month in Illaroo is January (average daytime high around 27.5°C) and the coolest is July (around 15.1°C). The area receives roughly 1186 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.5°C | 16.6°C | 112 mm |
| Feb | 25.9°C | 16°C | 140 mm |
| Mar | 23.9°C | 15°C | 183 mm |
| Apr | 21.3°C | 12.2°C | 91 mm |
| May | 18°C | 9.1°C | 56 mm |
| Jun | 15.1°C | 7.1°C | 74 mm |
| Jul | 15.1°C | 6.3°C | 87 mm |
| Aug | 16.2°C | 6.6°C | 86 mm |
| Sep | 19.5°C | 8.4°C | 56 mm |
| Oct | 22.3°C | 10.9°C | 94 mm |
| Nov | 24°C | 12.6°C | 96 mm |
| Dec | 26.1°C | 14.8°C | 111 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Illaroo
Where is Illaroo?
Illaroo is a suburb of New South Wales, Australia.
What is the population of Illaroo?
At the 2021 Census, Illaroo had a population of about 41.
Is Illaroo an advantaged area?
Illaroo has an ABS SEIFA score of 1049, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 83 out of 100 — more socio-economically advantaged than about 83% of Australian suburbs.
What is the weather like in Illaroo?
Illaroo has average daytime highs of about 21.2°C and overnight lows of about 11.3°C, with roughly 1,186 mm of rain across the year (based on 2014–2023 climate normals).
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