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ABS 2021 Census · Updated 21 May 2026
Oldbury is an outer-metropolitan suburb of Perth, Australia, with a population of approximately 296, making it a boutique locality. Located approximately 35 km from the Perth CBD, Oldbury is a outer metro area in Western Australia. The median household income is $100,256 per year.
Oldbury benefits from a high-income resident base, supporting premium property pricing. While further from the city, improving transport links could boost future demand.
Official Australia Post postcode for Oldbury. 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 Oldbury 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.
Oldbury is a smaller community of 296 — about 5% of the Western Australia suburb median (5,605) — so investors should factor in the narrower buyer pool and longer average time-on-market. At $100,256/year, household income in Oldbury is within 1% of the Western Australia median ($99,736), placing the suburb firmly in the state's mainstream demographic band. Median rent of $300/week (~$1,300/month) covers only 54% of the median mortgage of $2,400/month — the remaining $1,100/month must be funded from other income, so this suburb tilts toward capital growth rather than yield. At 35 km from Perth, Oldbury is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price.
How Oldbury stacks up against the median of all Western Australia suburbs in our dataset. Positive values mean Oldbury sits above the state median; negative means below.
| Metric | Oldbury | WA median | Δ vs state |
|---|---|---|---|
| Population | 296 | 5,605 | -95% |
| Median household income | $100,256/yr | $99,736/yr | +1% |
| Median rent (weekly) | $300 | $350 | -14% |
| Median mortgage (monthly) | $2,400 | $1,902 | +26% |
| Distance to CBD | 35 km | 20 km | +75% |
| Separate houses | 83% | 79% | +4pp |
Pre-inspection briefing for Oldbury — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 296 means liquidity is thin and capital growth tends to lag the wider Western Australia market over full cycles.
Weak cash flow: $300/week rent covers only 54% of the $2,400/month median mortgage — a $1,100/month gap that must be funded from other income. This suburb is a capital-growth play, not a yield play.
With 83% houses in a 296-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 Oldbury property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Oldbury are modest for 2026 — incomes close to the WA median of $99,736 and a population of 296 suggest gains will lag headline metro markets. Rental coverage runs at ~54% of the typical mortgage ($1,300/month rent vs $2,400/month repayment), meaning investors will rely on capital growth rather than yield. The EquitySight investment score of 54/100 places Oldbury 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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Oldbury scores 54/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 296, median household income of $100,256/year and median weekly rent of $300. 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 Oldbury are an above-state-median household income of $100,256/year, a dwelling mix that is 83% 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.
Oldbury has a usual resident population of approximately 296, 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.
Oldbury sits 35 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 $300 in Oldbury, equating to approximately $15,600/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 Oldbury is $2,400, or approximately $28,800/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 $300 works out to $1,300/month, covering 54% of the median mortgage repayment of $2,400/month. That leaves a $1,100/month shortfall (around $13,200/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 (296 residents), interest-rate sensitivity on the $2,400 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.