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ABS 2021 Census · Updated 21 May 2026
South Yunderup is an outer-metropolitan suburb of Perth, Australia, with a population of approximately 3,860, making it a boutique locality. Located approximately 73 km from the Perth CBD, South Yunderup is a outer metro area in Western Australia. The median household income is $78,936 per year.
Household incomes in South Yunderup sit in a comfortable mid-range for the Western Australia market. While further from the city, improving transport links could boost future demand.
Official Australia Post postcode for South Yunderup. 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 South Yunderup on My School →Estimated 2 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.
South Yunderup is a smaller community of 3,860 — about 69% of the Western Australia suburb median (5,605) — so investors should factor in the narrower buyer pool and longer average time-on-market. South Yunderup's median household income of $78,936/year is 21% below the Western Australia suburb median ($99,736) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. Rent of $335/week (80% coverage of the $1,824/month median mortgage) leaves a gap of roughly $372/month that a typical investor bridges with negative gearing, depreciation and capital growth. South Yunderup is 73 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 22% of household income — a useful sanity check on tenant affordability.
How South Yunderup stacks up against the median of all Western Australia suburbs in our dataset. Positive values mean South Yunderup sits above the state median; negative means below.
| Metric | South Yunderup | WA median | Δ vs state |
|---|---|---|---|
| Population | 3,860 | 5,605 | -31% |
| Median household income | $78,936/yr | $99,736/yr | -21% |
| Median rent (weekly) | $335 | $350 | -4% |
| Median mortgage (monthly) | $1,824 | $1,902 | -4% |
| Distance to CBD | 73 km | 20 km | +265% |
| Separate houses | 75% | 79% | -4pp |
Pre-inspection briefing for South Yunderup — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: household incomes 21% below the WA median ($78,936 vs $99,736) means liquidity is thin and capital growth tends to lag the wider Western Australia market over full cycles.
Moderate rental coverage: rent of $335/week covers 80% of a $1,824/month mortgage, leaving a $372/month gap that an investor bridges with equity, depreciation and tax benefits.
With 75% houses in a 3,860-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 South Yunderup property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for South Yunderup are modest for 2026 — incomes 21% below the WA median of $99,736 and a population of 3,860 suggest gains will lag headline metro markets. Rental coverage runs at ~80% of the typical mortgage ($1,452/month rent vs $1,824/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 51/100 places South Yunderup 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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South Yunderup scores 51/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 3,860, median household income of $78,936/year and median weekly rent of $335. 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 South Yunderup are a median household income of $78,936/year, a dwelling mix that is 75% separate houses, roughly 1 schools and 2 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.
South Yunderup has a usual resident population of approximately 3,860, 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.
South Yunderup sits 73 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 $335 in South Yunderup, equating to approximately $17,420/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 South Yunderup is $1,824, or approximately $21,888/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 $335 works out to $1,452/month, covering 80% of the median mortgage repayment of $1,824/month. That leaves a $372/month shortfall (around $4,464/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 (3,860 residents), interest-rate sensitivity on the $1,824 median mortgage, below-median household incomes ($78,936 vs $99,736 state median), 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.