ABS 2021 Census · Updated 31 March 2026
Duncan is a regional centre in South Australia, Australia, with a population of approximately 67, making it a boutique locality. Located approximately 162 km from the Adelaide CBD, Duncan is a regional area in South Australia. The median household income is $97,500 AUD per year (ABS 2021 Census).
Strong household incomes in Duncan underpin solid property demand. Regional positioning means lower entry costs but potentially longer hold periods for capital gains.
Map shows Duncan, South Australia, Australia.
Official Australia Post postcode for Duncan. 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 Duncan 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 →As a regional centre, Duncan serves a wide catchment area. Regional property can offer higher rental yields than metro equivalents, though investors should assess local employment diversity and infrastructure plans. The median rent of $158/week (ABS 2021) indicates an affordable rental market. Owner-occupiers face a median mortgage repayment of $550/month. The median household income of $97,500/year reflects a solid demographic, supporting sustainable rental demand.
A buy-and-hold approach in Duncan could work well with careful property selection and a longer time horizon.
Rental yields in Duncan tend to be lower — investors may need to rely on capital growth instead.
Renovation or flip strategies in Duncan face headwinds from a smaller buyer pool and slower turnover.
Run the numbers on a Duncan property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital growth in Duncan may remain subdued in 2026, with limited demand drivers in the near term. Landlords in Duncan may face longer tenant search times; competitive pricing will be important. Investor sentiment toward Duncan is currently lukewarm — value hunters may find opportunity here.
Duncan is a regional area in South Australia with a population of 67. The median rent is $158/week and the median household income is $97,500/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 Duncan include regional employment hubs, lifestyle, and affordability. 54% of dwellings are separate houses. The area has approximately 1 schools and 1 parks nearby.
According to the ABS 2021 Census, Duncan has a population of approximately 67. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
Duncan is approximately 162 km straight-line distance from the Adelaide CBD (calculated from ABS 2021 suburb centroid coordinates). As a regional or remote location, travel to the capital is significant — local amenities and employment are important investment considerations.