Thirlmere NSW

Postcode 2572 · Wollondilly LGA

Thirlmere is a smaller suburb in New South Wales within the Wollondilly local government area (postcode 2572). With a population of 4,986, the suburb has an established demographic with a median age of 38. Households earn a median income of $89K per year, with an average household size of 2.7 people. The most common occupations are technicians & trades, professionals, clerical & administrative. The top ancestries reported are Australian, English, Irish.

The median house price in Thirlmere is $700,000, having dropped significantly 25.5% over the past year. Units have a median price of $620,000 (-15.1% YoY). The current median weekly rent is $605. This gives a gross rental yield of approximately 4.5%. The median monthly mortgage repayment is $2,300.

Thirlmere is served by 1 school, including 1 primary. The average ICSEA score is 959, which is around the national average of 1,000. Public transport access includes 10 rail stations, 137 bus stops. The crime rate in the Wollondilly LGA is low at 1,550 incidents per 100,000 population.

From an investment perspective, Thirlmere offers a gross rental yield of 4.5%, rated as moderate yield. Property prices sit below the state median ($700K/$1.5M), suggesting a potential value opportunity. The price-to-income ratio of 7.9x is considered moderate. House prices have moved -25.5% year-on-year.

INVESTMENT SIGNALS
Rental Yield4.5% Moderate Yield
Price vs State$700K/$1.5M Below Median
Affordability7.9x Moderate
Price Momentum-25.5% Falling
SEIFA INDEX (ABS)
Advantage5/10
Education4/10
Economic7/10
Disadvantage5/10
MEDIAN HOUSE
$700K
-25.5% YoY
MEDIAN UNIT
$620K
-15.1% YoY
MEDIAN RENT /WK
$420
POPULATION
4,986
DEMOGRAPHICS
Median Age38
Household Size2.7
HH Income /wk$1,708
Personal Income /wk$782
Mortgage /mth$2,300
CRIME (Wollondilly LGA)
Crime Rate (per 100k)1,550
Total Incidents927
TRANSPORT
Rail Stations10
Bus Stops137
242 Station St
250 Station St
Leonard St After Station St
Leonard St Before Station St
Nattai St At Station St
SCHOOLS (1)
Avg ICSEA959
Total Students401
Government1
Thirlmere Public SchoolPrimary · Government · ICSEA 959
Data: 2026