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ABS 2021 Census · Updated 21 May 2026
Thomastown is a well-established middle-ring suburb of Melbourne, Australia, with a population of approximately 20,234, making it a sizeable community. Located approximately 15 km from the Melbourne CBD, Thomastown is a middle ring area in Victoria. The median household income is $63,700 per year.
Household earnings in Thomastown are below the state average, which may affect long-term capital growth. The short commute to the city centre is a key demand driver.
Official Australia Post postcode for Thomastown. 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 5 schools within or near this suburb.
Find schools near Thomastown on My School →Estimated 8 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 20,234 residents, Thomastown is one of Victoria's more populous suburbs — roughly 2.7× the state median of 7,416 — giving it a deep buyer and tenant pool that typically supports higher transaction volumes and shorter average days on market. Thomastown's median household income of $63,700/year is 33% below the Victoria suburb median ($95,160) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. Median weekly rent of $350 equates to $1,517/month — about 90% of the median mortgage repayment of $1,690/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. 15 km from Melbourne places Thomastown in the middle commuter belt, close enough for daily trips by car or rail but at a materially lower price point than inner suburbs.
Middle-ring locations like this one historically reward patient holders — focus on homes near catchment-zone schools and major transport. Local rents consume roughly 29% of household income — a useful sanity check on tenant affordability.
How Thomastown stacks up against the median of all Victoria suburbs in our dataset. Positive values mean Thomastown sits above the state median; negative means below.
| Metric | Thomastown | VIC median | Δ vs state |
|---|---|---|---|
| Population | 20,234 | 7,416 | +173% |
| Median household income | $63,700/yr | $95,160/yr | -33% |
| Median rent (weekly) | $350 | $380 | -8% |
| Median mortgage (monthly) | $1,690 | $1,950 | -13% |
| Distance to CBD | 15 km | 32 km | -53% |
| Separate houses | 78% | 78% | 0pp |
Pre-inspection briefing for Thomastown — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: household incomes 33% below the VIC median ($63,700 vs $95,160) means liquidity is thin and capital growth tends to lag the wider Victoria market over full cycles.
Strong rental coverage: $350/week (~$1,517/month) covers 90% of the $1,690/month median mortgage repayment, so the shortfall sits at just $173/month. Investors targeting positive cash flow should shortlist this suburb.
With 78% houses in a 20,234-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 Thomastown property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Thomastown are modest for 2026 — incomes 33% below the VIC median of $95,160 suggest gains will lag headline metro markets. Rental coverage runs at ~90% of the typical mortgage ($1,517/month rent vs $1,690/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 61/100 places Thomastown 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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Thomastown scores 61/100 on our EquitySight investment framework — a good rating. That score is driven by a population of 20,234, median household income of $63,700/year and median weekly rent of $350. 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 Thomastown are proximity to Melbourne (15 km), a median household income of $63,700/year, a dwelling mix that is 78% separate houses, roughly 5 schools and 8 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.
Thomastown has a usual resident population of approximately 20,234, 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.
Thomastown sits 15 km straight-line from the Melbourne CBD. This is comfortable commuter territory, with reasonable rail and road access to the city.
The most recent census recorded a median weekly rent of $350 in Thomastown, equating to approximately $18,200/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 Thomastown is $1,690, or approximately $20,280/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 $350 works out to $1,517/month, covering 90% of the median mortgage repayment of $1,690/month. That leaves a $173/month shortfall (around $2,076/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 $1,690 median mortgage, below-median household incomes ($63,700 vs $95,160 state median), 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.