ABS 2021 Census · Updated 31 March 2026
Semaphore Park is a well-established middle-ring suburb of Adelaide, Australia, with a population of approximately 4,541, making it a boutique locality. Located approximately 13 km from the Adelaide CBD, Semaphore Park is a middle ring area in South Australia. The median household income is $65,624 AUD per year (ABS 2021 Census).
Lower income levels in Semaphore Park typically translate to more affordable entry points for investors. Close CBD access strengthens tenant appeal and resale value.
Map shows Semaphore Park, South Australia, Australia.
Official Australia Post postcode for Semaphore Park. 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 Semaphore Park on My School →Estimated 2 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 →Semaphore Park'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 $250/week (ABS 2021) indicates an affordable rental market. Owner-occupiers face a median mortgage repayment of $1,786/month.
A buy-and-hold approach in Semaphore Park could work well with careful property selection and a longer time horizon.
Rental yields in Semaphore Park tend to be lower — investors may need to rely on capital growth instead.
Limited buyer depth in Semaphore Park makes flip strategies higher-risk — consider rental conversion instead.
Run the numbers on a Semaphore Park property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital growth in Semaphore Park may remain subdued in 2026, with limited demand drivers in the near term. Tenants in Semaphore Park have options — presenting well-maintained properties is key to minimising vacancy. Investor sentiment is cautiously optimistic — selective opportunities exist for well-researched buyers.
Semaphore Park is a middle ring area in South Australia with a population of 4,541. The median rent is $250/week and the median household income is $65,624/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 Semaphore Park include established amenities and transport access. 49% of dwellings are separate houses. The area has approximately 1 schools and 2 parks nearby.
According to the ABS 2021 Census, Semaphore Park has a population of approximately 4,541. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
Semaphore Park is approximately 13 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.