ABS 2021 Census · Updated 31 March 2026
Castle Cove is a well-established middle-ring suburb of Sydney, Australia, with a population of approximately 2,643, making it a boutique locality. Located approximately 9 km from the Sydney CBD, Castle Cove is a middle ring area in New South Wales. The median household income is $178,828 AUD per year (ABS 2021 Census).
Castle Cove benefits from a high-income resident base, supporting premium property pricing. The short commute to the city centre is a key demand driver.
Map shows Castle Cove, New South Wales, Australia.
Official Australia Post postcode for Castle Cove. A postcode may cover multiple suburbs.
Australia Post Postcode Finder →Usual resident population at census night. Source: ABS 2021 Census of Population and Housing.
ABS Census Data →Weekly median rent for occupied private dwellings. Source: ABS 2021 Census. Live rental data integration coming soon.
State Rental Authority →Annual median household income (before tax) for all households. Source: ABS 2021 Census.
ABS Census Data →Straight-line distance from the suburb centroid (ABS 2021 SAL geography) to the nearest capital city CBD. Actual driving distance will be longer.
Estimated 1 school within or near this suburb based on ABS 2021 data.
Find schools near Castle Cove on My School →Estimated 1 park and green spaces near this suburb. Source: ABS 2021 data.
Monthly median mortgage repayment for households currently paying off a mortgage. Source: ABS 2021 Census.
ABS Census Data →Proportion of separate houses vs units, townhouses, and other dwelling types. Source: ABS 2021 Census. Relevant for investors assessing rental demand mix.
ABS Census Data →Castle Cove's middle-ring location balances affordability with accessibility. These suburbs often benefit from established infrastructure, good schools, and transport links — making them attractive to families and long-term tenants. The median rent of $1,000/week (ABS 2021) indicates a premium rental market. Owner-occupiers face a median mortgage repayment of $4,000/month. A median household income of $178,828/year supports premium property values and indicates a well-employed resident base. 84% of dwellings are separate houses, indicating a predominantly family-oriented, land-rich market.
With robust local demand and income levels, Castle Cove is a natural candidate for patient investors.
Strong tenant demand in Castle Cove underpins consistent rental income and low vacancy risk.
The resale market in Castle Cove may not support quick-turnaround renovation projects.
Run the numbers on a Castle Cove property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Castle Cove is well-positioned for continued price appreciation through 2026, underpinned by high household incomes and location appeal. The rental market in Castle Cove should see steady occupancy, with moderate upward pressure on rents. Castle Cove remains on the radar of active property investors in New South Wales.
Castle Cove is a middle ring area in New South Wales with a population of 2,643. The median rent is $1,000/week and the median household income is $178,828/year (ABS 2021 Census). As with any property investment, conduct thorough due diligence on current listings, vacancy rates, and local infrastructure plans before committing.
Key demand drivers in Castle Cove include established amenities and transport access. 84% of dwellings are separate houses. The area has approximately 1 schools and 1 parks nearby.
According to the ABS 2021 Census, Castle Cove has a population of approximately 2,643. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
Castle Cove is approximately 9 km straight-line distance from the Sydney CBD (calculated from ABS 2021 suburb centroid coordinates). This close proximity means excellent access to employment, dining, and entertainment.