ABS 2021 Census · Updated 31 March 2026
Seacliff is a well-established middle-ring suburb of Adelaide, Australia, with a population of approximately 2,117, making it a boutique locality. Located approximately 14 km from the Adelaide CBD, Seacliff is a middle ring area in South Australia. The median household income is $100,412 AUD per year (ABS 2021 Census).
Seacliff 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 Seacliff, South Australia, Australia.
Official Australia Post postcode for Seacliff. 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 Seacliff 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 →Seacliff'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 $350/week (ABS 2021) indicates an affordable rental market. Owner-occupiers face a median mortgage repayment of $1,950/month. A median household income of $100,412/year supports premium property values and indicates a well-employed resident base.
With robust local demand and income levels, Seacliff is a natural candidate for patient investors.
Expect competitive but not exceptional rental returns in Seacliff's current market.
Limited buyer depth in Seacliff makes flip strategies higher-risk — consider rental conversion instead.
Run the numbers on a Seacliff property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Seacliff is well-positioned for continued price appreciation through 2026, underpinned by high household incomes and location appeal. Tenants in Seacliff have options — presenting well-maintained properties is key to minimising vacancy. The market mood around Seacliff is balanced — neither bullish nor bearish heading into 2026.
Seacliff is a middle ring area in South Australia with a population of 2,117. The median rent is $350/week and the median household income is $100,412/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 Seacliff include established amenities and transport access. 61% of dwellings are separate houses. The area has approximately 1 schools and 1 parks nearby.
According to the ABS 2021 Census, Seacliff has a population of approximately 2,117. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
Seacliff is approximately 14 km straight-line distance from the Adelaide CBD (calculated from ABS 2021 suburb centroid coordinates). This is within comfortable commuting range with good transport links.