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ABS 2021 Census · Updated 21 May 2026
Cogra Bay is a well-established middle-ring suburb of Sydney, Australia, with a population of approximately 13, making it a boutique locality. Located approximately 39 km from the Sydney CBD, Cogra Bay is a middle ring area in New South Wales. The median household income is $71,448 per year.
Lower income levels in Cogra Bay typically translate to more affordable entry points for investors. Greater distance from the CBD may temper short-term capital growth.
Official Australia Post postcode for Cogra Bay. 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 Cogra Bay 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.
Cogra Bay is a smaller community of 13 — about 0% of the New South Wales suburb median (5,325) — so investors should factor in the narrower buyer pool and longer average time-on-market. Cogra Bay's median household income of $71,448/year is 27% below the New South Wales suburb median ($97,552) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. Median weekly rent of $700 equates to $3,033/month — about 133% of the median mortgage repayment of $2,280/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. At 39 km from Sydney, Cogra Bay is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price.
How Cogra Bay stacks up against the median of all New South Wales suburbs in our dataset. Positive values mean Cogra Bay sits above the state median; negative means below.
| Metric | Cogra Bay | NSW median | Δ vs state |
|---|---|---|---|
| Population | 13 | 5,325 | -100% |
| Median household income | $71,448/yr | $97,552/yr | -27% |
| Median rent (weekly) | $700 | $430 | +63% |
| Median mortgage (monthly) | $2,280 | $2,167 | +5% |
| Distance to CBD | 39 km | 45 km | -13% |
Pre-inspection briefing for Cogra Bay — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 13 means liquidity is thin and capital growth tends to lag the wider New South Wales market over full cycles.
Strong rental coverage: $700/week (~$3,033/month) covers 133% of the $2,280/month median mortgage repayment, so the shortfall sits at just $0/month. Investors targeting positive cash flow should shortlist this suburb.
With a population of 13, the resale market in Cogra Bay may not reliably reward cosmetic renovations — a longer hold is typically a better strategy at this scale, letting land-value appreciation do the work instead.
Run the numbers on a Cogra Bay property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Cogra Bay are modest for 2026 — incomes 27% below the NSW median of $97,552 and a population of 13 suggest gains will lag headline metro markets. Rental coverage runs at ~133% of the typical mortgage ($3,033/month rent vs $2,280/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 48/100 places Cogra Bay 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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Cogra Bay scores 48/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 13, median household income of $71,448/year and median weekly rent of $700. 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 Cogra Bay are a median household income of $71,448/year, 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.
Cogra Bay has a usual resident population of approximately 13, compared with a New South Wales suburb median of 5,325 — 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.
Cogra Bay sits 39 km straight-line from the Sydney 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 $700 in Cogra Bay, equating to approximately $36,400/year in gross rental income (state median $430/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 Cogra Bay is $2,280, or approximately $27,360/year (vs $2,167/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 $700 works out to $3,033/month, covering 133% of the median mortgage repayment of $2,280/month. That means rent exceeds the median repayment by roughly $753/month, so on these numbers Cogra Bay leans cash-flow-positive before accounting for strata, council rates, insurance and maintenance. 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 (13 residents), interest-rate sensitivity on the $2,280 median mortgage, below-median household incomes ($71,448 vs $97,552 state median), the broader New South Wales 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.