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ABS 2021 Census · Updated 21 May 2026
Big Hill is a regional centre in New South Wales, Australia, with a population of approximately 78, making it a boutique locality. Located approximately 133 km from the Sydney CBD, Big Hill is a regional area in New South Wales. The median household income is $121,316 per year.
Strong household incomes in Big Hill underpin solid property demand. As a regional location, growth prospects depend on local economic conditions and infrastructure investment.
Official Australia Post postcode for Big Hill. 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 Big Hill 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.
Big Hill is a smaller community of 78 — about 1% of the New South Wales suburb median (5,325) — so investors should factor in the narrower buyer pool and longer average time-on-market. Median household income of $121,316/year runs 24% above the New South Wales suburb median of $97,552, indicating strong purchasing power and the type of demographic profile that tends to sustain premium property prices through market cycles. Median weekly rent of $550 equates to $2,383/month — about 134% of the median mortgage repayment of $1,777/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. Big Hill is 133 km from Sydney, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand. Only 27% of dwellings are separate houses (vs 76% state median), so this is a unit-heavy market where body-corporate decisions and strata supply meaningfully shape investor returns.
How Big Hill stacks up against the median of all New South Wales suburbs in our dataset. Positive values mean Big Hill sits above the state median; negative means below.
| Metric | Big Hill | NSW median | Δ vs state |
|---|---|---|---|
| Population | 78 | 5,325 | -99% |
| Median household income | $121,316/yr | $97,552/yr | +24% |
| Median rent (weekly) | $550 | $430 | +28% |
| Median mortgage (monthly) | $1,777 | $2,167 | -18% |
| Distance to CBD | 133 km | 45 km | +196% |
| Separate houses | 27% | 76% | -49pp |
Pre-inspection briefing for Big Hill — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 78 means liquidity is thin and capital growth tends to lag the wider New South Wales market over full cycles.
Strong rental coverage: $550/week (~$2,383/month) covers 134% of the $1,777/month median mortgage repayment, so the shortfall sits at just $0/month. Investors targeting positive cash flow should shortlist this suburb.
Only 27% of dwellings are separate houses (vs 76% NSW 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 Big Hill property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Big Hill are modest for 2026 — incomes 24% above the NSW median of $97,552 and a population of 78 suggest gains will lag headline metro markets. Rental coverage runs at ~134% of the typical mortgage ($2,383/month rent vs $1,777/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 50/100 places Big Hill 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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Big Hill scores 50/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 78, median household income of $121,316/year and median weekly rent of $550. 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 Big Hill are an above-state-median household income of $121,316/year, a dwelling mix that is 27% 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.
Big Hill has a usual resident population of approximately 78, 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.
Big Hill sits 133 km straight-line from the Sydney 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 $550 in Big Hill, equating to approximately $28,600/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 Big Hill is $1,777, or approximately $21,324/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 $550 works out to $2,383/month, covering 134% of the median mortgage repayment of $1,777/month. That means rent exceeds the median repayment by roughly $606/month, so on these numbers Big Hill 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 (78 residents), interest-rate sensitivity on the $1,777 median mortgage, a unit-heavy dwelling mix (27% houses) where body-corporate costs and apartment supply affect resale, 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.