Undercliffe at a glance
Population
27
Median age 59
The brief
What to know about Undercliffe.
The postcode for Undercliffe is 2206 (NSW), part of Greater Sydney.
Undercliffe (2206) sits in the Canterbury-Bankstown region of NSW.
Undercliffe has roughly 27 residents, with a retiree-heavy demographic. Households are predominantly owner-occupied.
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Day to day
What it’s like to live here.
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 10 government primary, 1 government secondary, 5 Catholic, 3 independent.
Who lives here
Demographics.
The 2021 Census put Undercliffe's population at 27, with a median age of 59. That sits as a retiree-heavy demographic. Households are predominantly owner-occupied (109% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (82% family households, 36% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
27
Median age
59
Family households
82%
Lone person
36%
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.
Rental and ownership
Weekly rent (house)
$550/wk
Weekly rent (unit)
$280/wk
Owner occupied
109%
Renter occupied
–
At a deeper level
27
Median age: 59
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Place
Location.
Amenities
Transport
Education
Schools in Undercliffe.
Local schools for Undercliffe
View the catchment for each school to find out more.
Government School Catchment
Undercliffe Public School
Arncliffe West Infants School
Ferncourt Public 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 Undercliffe.
- What is the Undercliffe postcode?
- Undercliffe is in the 2206 postcode, in NSW, in the Canterbury-Bankstown City Council region.
- Where is Undercliffe?
- Undercliffe is a suburb of Sydney, in NSW 2206. It is part of the Greater Sydney area, in the Canterbury-Bankstown City Council region.
- What is the average rent in Undercliffe?
- The median weekly rent for houses is $550, for units it's $280.
- What schools are in Undercliffe?
- There are 20 schools serving Undercliffe on this page, including Undercliffe Public School, Arncliffe West Infants School, Ferncourt Public School.
- What suburbs are near Undercliffe?
- Undercliffe is close to Turrella, Earlwood, Wolli Creek, Bardwell Valley, Marrickville South.
- What is the population of Undercliffe?
- The population of Undercliffe is approximately 27 (2021 Census). The median age is 59.
For Sale
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Surrounding Suburbs
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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 →
Always dated
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