ABS 2021 Census · Updated 31 March 2026
Mount Colah is a well-established middle-ring suburb of Sydney, Australia, with a population of approximately 7,816, making it a smaller community. Located approximately 24 km from the Sydney CBD, Mount Colah is a middle ring area in New South Wales. The median household income is $130,260 AUD per year (ABS 2021 Census).
Above-average earnings in Mount Colah support sustained property values.
Map shows Mount Colah, New South Wales, Australia.
Official Australia Post postcode for Mount Colah. 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 2 schools within or near this suburb based on ABS 2021 data.
Find schools near Mount Colah on My School →Estimated 3 parks 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 →Mount Colah'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 $525/week (ABS 2021) indicates a mid-range rental market. Owner-occupiers face a median mortgage repayment of $2,544/month. A median household income of $130,260/year supports premium property values and indicates a well-employed resident base. 81% of dwellings are separate houses, indicating a predominantly family-oriented, land-rich market.
Solid fundamentals in Mount Colah support capital growth over a medium to long hold period.
Mount Colah's rental market favours investors seeking yield — occupancy rates are typically strong in this area.
Limited buyer depth in Mount Colah makes flip strategies higher-risk — consider rental conversion instead.
Run the numbers on a Mount Colah property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →The outlook for capital growth in Mount Colah is encouraging heading into 2026, driven by constrained supply and buyer competition. Tenants in Mount Colah have options — presenting well-maintained properties is key to minimising vacancy. Overall, investor sentiment toward Mount Colah is positive, backed by solid fundamentals.
Mount Colah is a middle ring area in New South Wales with a population of 7,816. The median rent is $525/week and the median household income is $130,260/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 Mount Colah include established amenities and transport access. 81% of dwellings are separate houses. The area has approximately 2 schools and 3 parks nearby.
According to the ABS 2021 Census, Mount Colah has a population of approximately 7,816. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
Mount Colah is approximately 24 km straight-line distance from the Sydney CBD (calculated from ABS 2021 suburb centroid coordinates). This is within comfortable commuting range with good transport links.