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ABS 2021 Census · Updated 21 May 2026
Williamstown is a well-established middle-ring suburb of Melbourne, Australia, with a population of approximately 14,407, making it a smaller community. Located approximately 8 km from the Melbourne CBD, Williamstown is a middle ring area in Victoria. The median household income is $125,372 per year.
Strong household incomes in Williamstown underpin solid property demand. Its proximity to the CBD adds a strong location premium.
Official Australia Post postcode for Williamstown. 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 4 schools within or near this suburb.
Find schools near Williamstown on My School →Estimated 6 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.
Williamstown's population of 14,407 sits 94% above the Victoria suburb median of 7,416, giving it a wider tenant and buyer catchment than the average VIC locality. Median household income of $125,372/year runs 32% above the Victoria suburb median of $95,160, indicating strong purchasing power and the type of demographic profile that tends to sustain premium property prices through market cycles. Rent of $450/week (72% coverage of the $2,700/month median mortgage) leaves a gap of roughly $750/month that a typical investor bridges with negative gearing, depreciation and capital growth. At 8 km from the Melbourne CBD, Williamstown sits inside the high-demand inner ring — properties here compete directly with the city's employment, transport and amenity networks. Only 50% of dwellings are separate houses (vs 78% state median), so this is a unit-heavy market where body-corporate decisions and strata supply meaningfully shape investor returns.
Middle-ring locations like this one historically reward patient holders — focus on homes near catchment-zone schools and major transport. Local rents consume roughly 19% of household income — a useful sanity check on tenant affordability.
How Williamstown stacks up against the median of all Victoria suburbs in our dataset. Positive values mean Williamstown sits above the state median; negative means below.
| Metric | Williamstown | VIC median | Δ vs state |
|---|---|---|---|
| Population | 14,407 | 7,416 | +94% |
| Median household income | $125,372/yr | $95,160/yr | +32% |
| Median rent (weekly) | $450 | $380 | +18% |
| Median mortgage (monthly) | $2,700 | $1,950 | +38% |
| Distance to CBD | 8 km | 32 km | -75% |
| Separate houses | 50% | 78% | -28pp |
Pre-inspection briefing for Williamstown — every item is derived from public datasets, with full citations in our data sources page.
Strong buy-and-hold fundamentals: household incomes run 32% above the Victoria suburb median ($125,372 vs $95,160), and the 8 km CBD distance keeps this suburb in the primary demand zone. In Victoria, suburbs with this profile have historically clustered in the upper tercile of 10-year capital growth.
Moderate rental coverage: rent of $450/week covers 72% of a $2,700/month mortgage, leaving a $750/month gap that an investor bridges with equity, depreciation and tax benefits.
Only 50% of dwellings are separate houses (vs 78% VIC median) — this is a unit and townhouse market, where cosmetic flips struggle against body-corporate restrictions, thinner after-reno uplift and competing new supply.
Run the numbers on a Williamstown property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Williamstown enters 2026 with a demographic tailwind — household incomes 32% above the Victoria suburb median of $95,160 and a population of 14,407 give it the depth and purchasing power to outperform the wider VIC market over the next 12–18 months. Rental coverage runs at ~72% of the typical mortgage ($1,950/month rent vs $2,700/month repayment), leaving a manageable top-up for most investors. The EquitySight investment score of 84/100 places Williamstown in the top tier of Australian suburbs we profile, and overall investor sentiment is constructive heading into the second half of 2026.
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Williamstown scores 84/100 on our EquitySight investment framework — a strong rating. That score is driven by a population of 14,407, median household income of $125,372/year and median weekly rent of $450. 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 Williamstown are proximity to Melbourne (8 km), an above-state-median household income of $125,372/year, a dwelling mix that is 50% separate houses, roughly 4 schools and 6 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.
Williamstown has a usual resident population of approximately 14,407, compared with a Victoria suburb median of 7,416 — 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.
Williamstown sits 8 km straight-line from the Melbourne CBD. This is inner-ring territory — pricing competes directly with established Melbourne employment nodes.
The most recent census recorded a median weekly rent of $450 in Williamstown, equating to approximately $23,400/year in gross rental income (state median $380/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 Williamstown is $2,700, or approximately $32,400/year (vs $1,950/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 $450 works out to $1,950/month, covering 72% of the median mortgage repayment of $2,700/month. That leaves a $750/month shortfall (around $9,000/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 $2,700 median mortgage, the broader Victoria 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.