Illawong at a glance
Walk score
2
Very car dependent
Population
7,427
Median age 44
The brief
What to know about Illawong.
The postcode for Illawong is 2234 (NSW), part of Greater Sydney.
Illawong (2234) sits in the Sutherland region of NSW.
Illawong has roughly 7,427 residents, with an established, older skew. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
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Day to day
What it’s like to live here.
Illawong scores 2/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 26°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1302mm. Data comes from the Bureau of Meteorology's Sydney (Observatory Hill) station, 32.5km away.
Schooling within or near the suburb covers 13 government primary, 2 government secondary, 3 Catholic, 2 independent.
Who lives here
Demographics.
The 2021 Census put Illawong's population at 7,427, with a median age of 44. That sits as an established, older skew. Households are predominantly owner-occupied (91% own, 8% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (89% family households, 10% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
7,427
Median age
44
Family households
89%
Lone person
10%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026· rental-nsw
Rental and ownership
Weekly rent (house)
$600/wk
Weekly rent (unit)
$650/wk
Owner occupied
91%
Renter occupied
8%
At a deeper level
7,427
Median age: 44
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Safety
Crime and safety.
134
total offences in 2025
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of January 2025· State Police Open Data
Getting around
Walkability.
2
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Illawong.
Local schools for Illawong
View the catchment for each school to find out more.
Government School Catchment
Illawong Public School
Tharawal Public School
Menai High School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1302 mm
Hottest Month (avg max)
26.2°C
Coldest Month (avg min)
8.4°C
Monthly Rainfall (mm)
Weather data from BOM station Sydney (Observatory Hill) (33 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Illawong.
- What is the Illawong postcode?
- Illawong is in the 2234 postcode, in NSW, in the Sutherland Shire Council region.
- Where is Illawong?
- Illawong is a suburb of Sydney, in NSW 2234. It is part of the Greater Sydney area, in the Sutherland Shire Council region.
- What is the average rent in Illawong?
- The median weekly rent for houses is $600, for units it's $650.
- What schools are in Illawong?
- There are 20 schools serving Illawong on this page, including Illawong Public School, Tharawal Public School, Menai High School.
- How walkable is Illawong?
- Illawong has a Walk Score of 2 out of 100, highly car-dependent. transit score 0, bike score 100.
- What suburbs are near Illawong?
- Illawong is close to Bonnet Bay, Lugarno, Alfords Point, Bangor, Peakhurst Heights.
- What is the population of Illawong?
- The population of Illawong is approximately 7,427 (2021 Census). The median age is 44.
For Sale
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Side by side
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
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