Thirlmere at a glance
Walk score
2
Very car dependent
Population
4,986
Median age 38
The brief
What to know about Thirlmere.
The postcode for Thirlmere is 2572 (NSW), part of Greater Sydney.
Thirlmere (2572) sits in the Wollondilly region of NSW.
Thirlmere has roughly 4,986 residents, with a typical family-age mix. Households are mostly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Day to day
What it’s like to live here.
Thirlmere 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.
Schooling within or near the suburb covers 4 government primary, 1 government secondary, 1 Catholic, 1 independent.
Who lives here
Demographics.
The 2021 Census put Thirlmere's population at 4,986, with a median age of 38. That sits as a typical family-age mix. Households are mostly owner-occupied (69% own, 23% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (76% family households, 23% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
4,986
Median age
38
Family households
76%
Lone person
23%
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)
$420/wk
Weekly rent (unit)
$420/wk
Owner occupied
69%
Renter occupied
23%
At a deeper level
4,986
Median age: 38
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Safety
Crime and safety.
127
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
45
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Thirlmere.
Local schools for Thirlmere
View the catchment for each school to find out more.
Government School Catchment
Thirlmere Public School
Tahmoor Public School
Buxton Public School
© ACARA, licensed under CC BY 4.0.
Frequently asked
About Thirlmere.
- What is the Thirlmere postcode?
- Thirlmere is in the 2572 postcode, in NSW, in the Wollondilly Shire Council region.
- Where is Thirlmere?
- Thirlmere is a suburb of Sydney, in NSW 2572. It is part of the Greater Sydney area, in the Wollondilly Shire Council region.
- What is the average rent in Thirlmere?
- The median weekly rent for houses is $420, for units it's $420.
- What schools are in Thirlmere?
- There are 8 schools serving Thirlmere on this page, including Thirlmere Public School, Tahmoor Public School, Buxton Public School.
- How walkable is Thirlmere?
- Thirlmere has a Walk Score of 2 out of 100, highly car-dependent. transit score 0, bike score 45.
- What suburbs are near Thirlmere?
- Thirlmere is close to Couridjah, Tahmoor, Lakesland, Picton, Mowbray Park.
- What is the population of Thirlmere?
- The population of Thirlmere is approximately 4,986 (2021 Census). The median age is 38.
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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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