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ABS 2021 Census · Updated 21 May 2026
Coolbinia is a well-established middle-ring suburb of Perth, Australia, with a population of approximately 1,751, making it a boutique locality. Located 4 km from the Perth CBD, Coolbinia is a middle ring area in Western Australia. The median household income is $167,908 per year.
Strong household incomes in Coolbinia underpin solid property demand. Its proximity to the CBD adds a strong location premium.
Official Australia Post postcode for Coolbinia. 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 Coolbinia 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.
Coolbinia is a smaller community of 1,751 — about 31% 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 $167,908/year runs 68% 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 $350/week (~$1,517/month) covers only 58% of the median mortgage of $2,600/month — the remaining $1,083/month must be funded from other income, so this suburb tilts toward capital growth rather than yield. At 4 km from the Perth CBD, Coolbinia sits inside the high-demand inner ring — properties here compete directly with the city's employment, transport and amenity networks.
How Coolbinia stacks up against the median of all Western Australia suburbs in our dataset. Positive values mean Coolbinia sits above the state median; negative means below.
| Metric | Coolbinia | WA median | Δ vs state |
|---|---|---|---|
| Population | 1,751 | 5,605 | -69% |
| Median household income | $167,908/yr | $99,736/yr | +68% |
| Median rent (weekly) | $350 | $350 | 0% |
| Median mortgage (monthly) | $2,600 | $1,902 | +37% |
| Distance to CBD | 4 km | 20 km | -80% |
| Separate houses | 80% | 79% | +1pp |
Pre-inspection briefing for Coolbinia — every item is derived from public datasets, with full citations in our data sources page.
Strong buy-and-hold fundamentals: household incomes run 68% above the Western Australia suburb median ($167,908 vs $99,736), and the 4 km CBD distance keeps this suburb in the primary demand zone. In Western Australia, suburbs with this profile have historically clustered in the upper tercile of 10-year capital growth.
Weak cash flow: $350/week rent covers only 58% of the $2,600/month median mortgage — a $1,083/month gap that must be funded from other income. This suburb is a capital-growth play, not a yield play.
With 80% houses in a 1,751-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 Coolbinia property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Coolbinia enters 2026 with a demographic tailwind — household incomes 68% above the Western Australia suburb median of $99,736 and a population of 1,751 give it the depth and purchasing power to outperform the wider WA market over the next 12–18 months. Rental coverage runs at ~58% of the typical mortgage ($1,517/month rent vs $2,600/month repayment), meaning investors will rely on capital growth rather than yield. The EquitySight investment score of 77/100 places Coolbinia in the upper-middle tier of Australian suburbs we profile, and overall investor sentiment is constructive heading into the second half of 2026.
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Coolbinia scores 77/100 on our EquitySight investment framework — a good rating. That score is driven by a population of 1,751, median household income of $167,908/year and median weekly rent of $350. 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 Coolbinia are proximity to Perth (4 km), an above-state-median household income of $167,908/year, a dwelling mix that is 80% 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.
Coolbinia has a usual resident population of approximately 1,751, 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.
Coolbinia sits 4 km straight-line from the Perth CBD. This is inner-ring territory — pricing competes directly with established Perth employment nodes.
The most recent census recorded a median weekly rent of $350 in Coolbinia, equating to approximately $18,200/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 Coolbinia is $2,600, or approximately $31,200/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 $350 works out to $1,517/month, covering 58% of the median mortgage repayment of $2,600/month. That leaves a $1,083/month shortfall (around $12,996/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 (1,751 residents), interest-rate sensitivity on the $2,600 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.