ABS 2021 Census · Updated 31 March 2026
Tarnma is a regional centre in South Australia, Australia, with a population of approximately 20, making it a boutique locality. Located approximately 91 km from the Adelaide CBD, Tarnma is a regional area in South Australia. The median household income is $44,200 AUD per year (ABS 2021 Census).
Lower income levels in Tarnma typically translate to more affordable entry points for investors. Distance from major centres is a consideration, though regional markets can offer higher rental yields.
Map shows Tarnma, South Australia, Australia.
Official Australia Post postcode for Tarnma. 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 Tarnma 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, Tarnma 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 $206/week (ABS 2021) indicates an affordable rental market.
Long-term holding in Tarnma requires careful assessment of local economic resilience.
Rental yields in Tarnma tend to be lower — investors may need to rely on capital growth instead.
Limited buyer depth in Tarnma makes flip strategies higher-risk — consider rental conversion instead.
Run the numbers on a Tarnma property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital growth in Tarnma may remain subdued in 2026, with limited demand drivers in the near term. The rental pipeline in Tarnma is thinner — flexible lease terms could help secure tenants faster. Tarnma is not a headline market, but contrarian investors may see long-term potential.
Tarnma is a regional area in South Australia with a population of 20. The median rent is $206/week and the median household income is $44,200/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 Tarnma include regional employment hubs, lifestyle, and affordability. 63% of dwellings are separate houses. The area has approximately 1 schools and 1 parks nearby.
According to the ABS 2021 Census, Tarnma has a population of approximately 20. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
Tarnma is approximately 91 km straight-line distance from the Adelaide CBD (calculated from ABS 2021 suburb centroid coordinates). Road travel times will vary; check current mapping services for up-to-date routes.