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ABS 2021 Census · Updated 21 May 2026
Wedge Island is a well-established middle-ring suburb of Perth, Australia, with a population of approximately 18, making it a boutique locality. Located approximately 140 km from the Perth CBD, Wedge Island is a middle ring area in Western Australia. The median household income is $94,224 per year.
Wedge Island 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 Wedge Island. 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 Wedge Island 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.
Wedge Island is a smaller community of 18 — about 0% of the Western Australia suburb median (5,605) — so investors should factor in the narrower buyer pool and longer average time-on-market. Household income of $94,224/year is 6% below the Western Australia median of $99,736, typically translating into lower entry prices and a tenant base more sensitive to rent increases. Wedge Island is 140 km from Perth, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand.
How Wedge Island stacks up against the median of all Western Australia suburbs in our dataset. Positive values mean Wedge Island sits above the state median; negative means below.
| Metric | Wedge Island | WA median | Δ vs state |
|---|---|---|---|
| Population | 18 | 5,605 | -100% |
| Median household income | $94,224/yr | $99,736/yr | -6% |
| Median mortgage (monthly) | $1,850 | $1,902 | -3% |
| Distance to CBD | 140 km | 20 km | +600% |
Pre-inspection briefing for Wedge Island — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 18 means liquidity is thin and capital growth tends to lag the wider Western Australia market over full cycles.
Median rental data was not captured for Wedge Island. Use current realestate.com.au and Domain listings to triangulate a realistic weekly rent before committing, then feed that number into our rental yield calculator.
With a population of 18, the resale market in Wedge Island may not reliably reward cosmetic renovations — a longer hold is typically a better strategy at this scale, letting land-value appreciation do the work instead.
Run the numbers on a Wedge Island property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Wedge Island are modest for 2026 — incomes 6% below the WA median of $99,736 and a population of 18 suggest gains will lag headline metro markets. Rental fundamentals will need to be verified against live listings, as a clean median rent was not recorded for Wedge Island. The EquitySight investment score of 48/100 places Wedge Island in the mid tier of Australian suburbs we profile, and overall investor sentiment is cautious heading into the second half of 2026.
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Wedge Island scores 48/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 18, median household income of $94,224/year. 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 Wedge Island are a median household income of $94,224/year, 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.
Wedge Island has a usual resident population of approximately 18, 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.
Wedge Island sits 140 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.
A reliable median rent was not captured for Wedge Island. Benchmark expected weekly rent on realestate.com.au and Domain, or the state rental tribunal's rent dashboard. Most Australian investors target a 4–5% gross yield as a baseline.
The median monthly mortgage repayment in Wedge Island is $1,850, or approximately $22,200/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.
Census data was not complete enough in Wedge Island to compute a clean rent-to-mortgage coverage. Use current listings to benchmark weekly rent, then plug your expected purchase price into our rental yield calculator to see whether the investment runs cash-flow positive or negative.
The main risks are a thin buyer pool (18 residents), interest-rate sensitivity on the $1,850 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.