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ABS 2021 Census · Updated 21 May 2026
Aldinga Beach is a coastal suburb in South Australia, Australia, with a population of approximately 10,667, making it a smaller community. Located approximately 43 km from the Adelaide CBD, Aldinga Beach is a coastal area in South Australia. The median household income is $67,444 per year.
Aldinga Beach's income profile suggests a value-oriented market with competitive purchase prices. The coastal setting provides a lifestyle factor that underpins property values.
Official Australia Post postcode for Aldinga Beach. A postcode may cover multiple suburbs.
Australia Post Postcode Finder →Usual resident population at the most recent census.
Weekly median rent for occupied homes. Live rental data integration coming soon.
Annual median household income (before tax) across all households.
Straight-line distance from the suburb centroid to the nearest capital city CBD. Actual driving distance will be longer.
Estimated 3 schools within or near this suburb.
Find schools near Aldinga Beach on My School →Estimated 4 parks and green spaces near this suburb.
Monthly median mortgage repayment for households currently paying off a mortgage.
Proportion of separate houses versus units, townhouses, and other home types. Useful for investors assessing rental demand mix.
With 10,667 residents, Aldinga Beach is one of South Australia's more populous suburbs — roughly 2.9× the state median of 3,699 — giving it a deep buyer and tenant pool that typically supports higher transaction volumes and shorter average days on market. Household income of $67,444/year is 17% below the South Australia median of $80,964, typically translating into lower entry prices and a tenant base more sensitive to rent increases. Median weekly rent of $320 equates to $1,387/month — about 99% of the median mortgage repayment of $1,408/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. At 43 km from Adelaide, Aldinga Beach is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price.
This suburb can suit investors targeting renter demand driven by lifestyle. Insurance, climate risk, and seasonal rental patterns all warrant a close look. Local rents consume roughly 25% of household income — a useful sanity check on tenant affordability.
How Aldinga Beach stacks up against the median of all South Australia suburbs in our dataset. Positive values mean Aldinga Beach sits above the state median; negative means below.
| Metric | Aldinga Beach | SA median | Δ vs state |
|---|---|---|---|
| Population | 10,667 | 3,699 | +188% |
| Median household income | $67,444/yr | $80,964/yr | -17% |
| Median rent (weekly) | $320 | $320 | 0% |
| Median mortgage (monthly) | $1,408 | $1,616 | -13% |
| Distance to CBD | 43 km | 13 km | +231% |
| Separate houses | 76% | 73% | +3pp |
Pre-inspection briefing for Aldinga Beach — every item is derived from public datasets, with full citations in our data sources page.
Moderate buy-and-hold potential: Aldinga Beach's 10,667-person market and $67,444 median household income work for investors who are selective on street location and property quality rather than counting on a suburb-wide rerating.
Strong rental coverage: $320/week (~$1,387/month) covers 99% of the $1,408/month median mortgage repayment, so the shortfall sits at just $21/month. Investors targeting positive cash flow should shortlist this suburb.
With 76% houses in a 10,667-person market, renovation margins depend on individual street and aspect rather than any suburb-wide story — do comparable-sales analysis before committing capital.
Run the numbers on a Aldinga Beach property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Aldinga Beach are modest for 2026 — incomes 17% below the SA median of $80,964 suggest gains will lag headline metro markets. Rental coverage runs at ~99% of the typical mortgage ($1,387/month rent vs $1,408/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 50/100 places Aldinga Beach in the mid tier of Australian suburbs we profile, and overall investor sentiment is balanced heading into the second half of 2026.
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Aldinga Beach scores 50/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 10,667, median household income of $67,444/year and median weekly rent of $320. Whether it fits your portfolio depends on whether you are targeting cash flow, capital growth, or a value-add renovation — all three are scored with suburb-specific numbers elsewhere on this page.
The main demand drivers in Aldinga Beach are a median household income of $67,444/year, a dwelling mix that is 76% separate houses, roughly 3 schools and 4 parks within the catchment. Together these shape both owner-occupier and tenant demand and are the factors we weight most heavily in the suburb's investment score.
Aldinga Beach has a usual resident population of approximately 10,667, compared with a South Australia suburb median of 3,699 — placing it in the upper half of the state's suburbs by size. Population is the clearest proxy for market depth: more residents mean more transactions and typically a shorter average days-on-market on resale.
Aldinga Beach sits 43 km straight-line from the Adelaide CBD. This is an outer-metro location; local employment and infrastructure announcements tend to move prices more than CBD connectivity alone.
The most recent census recorded a median weekly rent of $320 in Aldinga Beach, equating to approximately $16,640/year in gross rental income (state median $320/week). Market rents have typically drifted above the recorded figure — verify against current listings on realestate.com.au and Domain before making an offer.
The median monthly mortgage repayment in Aldinga Beach is $1,408, or approximately $16,896/year (vs $1,616/month state median). Stress-test your own borrowing at rates 1–2 percentage points above today's to make sure you can still service the loan through an RBA tightening cycle.
A median weekly rent of $320 works out to $1,387/month, covering 99% of the median mortgage repayment of $1,408/month. That leaves a $21/month shortfall (around $252/year before tax benefits), so a typical owner-occupier-priced property here is negatively geared. Actual cash flow depends on your deposit, loan terms, ownership costs and marginal tax rate — run the full numbers in our rental yield calculator.
The main risks are interest-rate sensitivity on the $1,408 median mortgage, below-median household incomes ($67,444 vs $80,964 state median), the broader South Australia market cycle. Each of these is covered in the Risk Factors section above with suburb-specific numbers rather than generic warnings.
Every number on this page comes from the ABS 2021 Census of Population and Housing, Australia Post postcode reference data, and OpenStreetMap amenity tiles. The investment score, strategy verdicts, and comparison table are computed deterministically from those inputs — no opinion, no estimation. See our full methodology and the data sources and licences for the formulas we use.