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ABS 2021 Census · Updated 21 May 2026
Secret Harbour is an outer-metropolitan suburb of Perth, Australia, with a population of approximately 12,474, making it a smaller community. Located approximately 52 km from the Perth CBD, Secret Harbour is a outer metro area in Western Australia. The median household income is $129,584 per year.
Secret Harbour benefits from a high-income resident base, supporting premium property pricing. Greater distance from the CBD may temper short-term capital growth.
Official Australia Post postcode for Secret Harbour. 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 Secret Harbour on My School →Estimated 5 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 12,474 residents, Secret Harbour is one of Western Australia's more populous suburbs — roughly 2.2× the state median of 5,605 — giving it a deep buyer and tenant pool that typically supports higher transaction volumes and shorter average days on market. Median household income of $129,584/year runs 30% 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. Rent of $380/week (82% coverage of the $2,000/month median mortgage) leaves a gap of roughly $353/month that a typical investor bridges with negative gearing, depreciation and capital growth. Secret Harbour is 52 km from Perth, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand.
This suburb suits long-term investors due to steady population growth and affordable entry prices. Look for established streets close to schools and shops rather than raw new-estate land. Local rents consume roughly 15% of household income — a useful sanity check on tenant affordability.
How Secret Harbour stacks up against the median of all Western Australia suburbs in our dataset. Positive values mean Secret Harbour sits above the state median; negative means below.
| Metric | Secret Harbour | WA median | Δ vs state |
|---|---|---|---|
| Population | 12,474 | 5,605 | +123% |
| Median household income | $129,584/yr | $99,736/yr | +30% |
| Median rent (weekly) | $380 | $350 | +9% |
| Median mortgage (monthly) | $2,000 | $1,902 | +5% |
| Distance to CBD | 52 km | 20 km | +160% |
| Separate houses | 93% | 79% | +14pp |
Pre-inspection briefing for Secret Harbour — every item is derived from public datasets, with full citations in our data sources page.
Solid buy-and-hold profile: a population of 12,474 and household income close to the WA median ($129,584 vs $99,736) give the market enough depth for patient capital growth without the premium entry price of inner suburbs.
Moderate rental coverage: rent of $380/week covers 82% of a $2,000/month mortgage, leaving a $353/month gap that an investor bridges with equity, depreciation and tax benefits.
A dwelling mix skewed to houses (93% vs 79% WA median) combined with a population of 12,474 creates a deeper market for value-add renovations — older stock, separate titles and stronger buyer competition are the usual pattern here.
Run the numbers on a Secret Harbour property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Property values in Secret Harbour should track the wider Western Australia market through 2026, with the $129,584/year median household income (30% above the $99,736 state median) keeping the suburb firmly mid-pack. Rental coverage runs at ~82% of the typical mortgage ($1,647/month rent vs $2,000/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 64/100 places Secret Harbour in the upper-middle tier of Australian suburbs we profile, and overall investor sentiment is balanced heading into the second half of 2026.
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Secret Harbour scores 64/100 on our EquitySight investment framework — a good rating. That score is driven by a population of 12,474, median household income of $129,584/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 Secret Harbour are an above-state-median household income of $129,584/year, a dwelling mix that is 93% separate houses, roughly 3 schools and 5 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.
Secret Harbour has a usual resident population of approximately 12,474, compared with a Western Australia suburb median of 5,605 — 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.
Secret Harbour sits 52 km straight-line from the Perth CBD. This is a regional market where CBD distance is only indicative — local industry diversity and commute alternatives matter more.
The most recent census recorded a median weekly rent of $380 in Secret Harbour, 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 Secret Harbour is $2,000, or approximately $24,000/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 82% of the median mortgage repayment of $2,000/month. That leaves a $353/month shortfall (around $4,236/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 interest-rate sensitivity on the $2,000 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.