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ABS 2021 Census · Updated 21 May 2026
Cosgrove is a coastal suburb in Queensland, Australia, with a population of approximately 665, making it a boutique locality. Located approximately 1116 km from the Brisbane CBD, Cosgrove is a coastal area in Queensland. The median household income is $102,752 per year.
Strong household incomes in Cosgrove underpin solid property demand. Coastal lifestyle appeal adds a premium that supports long-term demand.
Official Australia Post postcode for Cosgrove. 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 Cosgrove 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.
Cosgrove is a smaller community of 665 — about 12% of the Queensland suburb median (5,474) — so investors should factor in the narrower buyer pool and longer average time-on-market. Households here earn $102,752/year on average — 14% above the QLD suburb median of $90,298 — a modest premium that supports resilient owner-occupier demand. Median weekly rent of $370 equates to $1,603/month — about 92% of the median mortgage repayment of $1,733/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. Cosgrove is 1116 km from Brisbane, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand.
How Cosgrove stacks up against the median of all Queensland suburbs in our dataset. Positive values mean Cosgrove sits above the state median; negative means below.
| Metric | Cosgrove | QLD median | Δ vs state |
|---|---|---|---|
| Population | 665 | 5,474 | -88% |
| Median household income | $102,752/yr | $90,298/yr | +14% |
| Median rent (weekly) | $370 | $385 | -4% |
| Median mortgage (monthly) | $1,733 | $1,733 | 0% |
| Distance to CBD | 1116 km | 62 km | +1700% |
| Separate houses | 85% | 77% | +8pp |
Pre-inspection briefing for Cosgrove — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 665 means liquidity is thin and capital growth tends to lag the wider Queensland market over full cycles.
Strong rental coverage: $370/week (~$1,603/month) covers 92% of the $1,733/month median mortgage repayment, so the shortfall sits at just $130/month. Investors targeting positive cash flow should shortlist this suburb.
With 85% houses in a 665-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 Cosgrove property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Cosgrove are modest for 2026 — incomes 14% above the QLD median of $90,298 and a population of 665 suggest gains will lag headline metro markets. Rental coverage runs at ~92% of the typical mortgage ($1,603/month rent vs $1,733/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 49/100 places Cosgrove 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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Cosgrove scores 49/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 665, median household income of $102,752/year and median weekly rent of $370. 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 Cosgrove are an above-state-median household income of $102,752/year, a dwelling mix that is 85% 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.
Cosgrove has a usual resident population of approximately 665, compared with a Queensland suburb median of 5,474 — 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.
Cosgrove sits 1116 km straight-line from the Brisbane 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 $370 in Cosgrove, equating to approximately $19,240/year in gross rental income (state median $385/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 Cosgrove is $1,733, or approximately $20,796/year (vs $1,733/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 $370 works out to $1,603/month, covering 92% of the median mortgage repayment of $1,733/month. That leaves a $130/month shortfall (around $1,560/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 (665 residents), interest-rate sensitivity on the $1,733 median mortgage, the broader Queensland 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.