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ABS 2021 Census · Updated 21 May 2026
Mardella is an outer-metropolitan suburb of Perth, Australia, with a population of approximately 446, making it a boutique locality. Located approximately 42 km from the Perth CBD, Mardella is a outer metro area in Western Australia. The median household income is $118,976 per year.
Strong household incomes in Mardella underpin solid property demand. Greater distance from the CBD may temper short-term capital growth.
Official Australia Post postcode for Mardella. 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 1 school within or near this suburb.
Find schools near Mardella on My School →Estimated 1 park 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.
Mardella is a smaller community of 446 — about 8% of the Western Australia suburb median (5,605) — so investors should factor in the narrower buyer pool and longer average time-on-market. Median household income of $118,976/year runs 19% above the Western Australia suburb median of $99,736, indicating strong purchasing power and the type of demographic profile that tends to sustain premium property prices through market cycles. Median rent of $380/week (~$1,647/month) covers only 66% of the median mortgage of $2,500/month — the remaining $853/month must be funded from other income, so this suburb tilts toward capital growth rather than yield. At 42 km from Perth, Mardella is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price.
How Mardella stacks up against the median of all Western Australia suburbs in our dataset. Positive values mean Mardella sits above the state median; negative means below.
| Metric | Mardella | WA median | Δ vs state |
|---|---|---|---|
| Population | 446 | 5,605 | -92% |
| Median household income | $118,976/yr | $99,736/yr | +19% |
| Median rent (weekly) | $380 | $350 | +9% |
| Median mortgage (monthly) | $2,500 | $1,902 | +31% |
| Distance to CBD | 42 km | 20 km | +110% |
| Separate houses | 92% | 79% | +13pp |
Pre-inspection briefing for Mardella — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 446 means liquidity is thin and capital growth tends to lag the wider Western Australia market over full cycles.
Moderate rental coverage: rent of $380/week covers 66% of a $2,500/month mortgage, leaving a $853/month gap that an investor bridges with equity, depreciation and tax benefits.
With 92% houses in a 446-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 Mardella property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Mardella are modest for 2026 — incomes 19% above the WA median of $99,736 and a population of 446 suggest gains will lag headline metro markets. Rental coverage runs at ~66% of the typical mortgage ($1,647/month rent vs $2,500/month repayment), leaving a manageable top-up for most investors. The EquitySight investment score of 58/100 places Mardella 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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Mardella scores 58/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 446, median household income of $118,976/year and median weekly rent of $380. 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 Mardella are an above-state-median household income of $118,976/year, a dwelling mix that is 92% separate houses, roughly 1 schools and 1 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.
Mardella has a usual resident population of approximately 446, compared with a Western Australia suburb median of 5,605 — placing it in the lower 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.
Mardella sits 42 km straight-line from the Perth 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 $380 in Mardella, equating to approximately $19,760/year in gross rental income (state median $350/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 Mardella is $2,500, or approximately $30,000/year (vs $1,902/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 $380 works out to $1,647/month, covering 66% of the median mortgage repayment of $2,500/month. That leaves a $853/month shortfall (around $10,236/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 a thin buyer pool (446 residents), interest-rate sensitivity on the $2,500 median mortgage, the broader Western 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.