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ABS 2021 Census · Updated 21 May 2026
Blacksoil is an outer-metropolitan suburb of Brisbane, Australia, with a population of approximately 106, making it a boutique locality. Located approximately 34 km from the Brisbane CBD, Blacksoil is a outer metro area in Queensland. The median household income is $71,500 per year.
Blacksoil's income profile suggests a value-oriented market with competitive purchase prices. While further from the city, improving transport links could boost future demand.
Official Australia Post postcode for Blacksoil. 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 Blacksoil 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.
Blacksoil is a smaller community of 106 — about 2% of the Queensland suburb median (5,474) — so investors should factor in the narrower buyer pool and longer average time-on-market. Blacksoil's median household income of $71,500/year is 21% below the Queensland suburb median ($90,298) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. Median rent of $300/week (~$1,300/month) covers only 60% of the median mortgage of $2,167/month — the remaining $867/month must be funded from other income, so this suburb tilts toward capital growth rather than yield. At 34 km from Brisbane, Blacksoil is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price.
How Blacksoil stacks up against the median of all Queensland suburbs in our dataset. Positive values mean Blacksoil sits above the state median; negative means below.
| Metric | Blacksoil | QLD median | Δ vs state |
|---|---|---|---|
| Population | 106 | 5,474 | -98% |
| Median household income | $71,500/yr | $90,298/yr | -21% |
| Median rent (weekly) | $300 | $385 | -22% |
| Median mortgage (monthly) | $2,167 | $1,733 | +25% |
| Distance to CBD | 34 km | 62 km | -45% |
| Separate houses | 81% | 77% | +4pp |
Pre-inspection briefing for Blacksoil — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 106 means liquidity is thin and capital growth tends to lag the wider Queensland market over full cycles.
Weak cash flow: $300/week rent covers only 60% of the $2,167/month median mortgage — a $867/month gap that must be funded from other income. This suburb is a capital-growth play, not a yield play.
With 81% houses in a 106-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 Blacksoil property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Blacksoil are modest for 2026 — incomes 21% below the QLD median of $90,298 and a population of 106 suggest gains will lag headline metro markets. Rental coverage runs at ~60% of the typical mortgage ($1,300/month rent vs $2,167/month repayment), leaving a manageable top-up for most investors. The EquitySight investment score of 41/100 places Blacksoil 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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Blacksoil scores 41/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 106, median household income of $71,500/year and median weekly rent of $300. 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 Blacksoil are a median household income of $71,500/year, a dwelling mix that is 81% 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.
Blacksoil has a usual resident population of approximately 106, 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.
Blacksoil sits 34 km straight-line from the Brisbane 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 $300 in Blacksoil, equating to approximately $15,600/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 Blacksoil is $2,167, or approximately $26,004/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 $300 works out to $1,300/month, covering 60% of the median mortgage repayment of $2,167/month. That leaves a $867/month shortfall (around $10,404/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 (106 residents), interest-rate sensitivity on the $2,167 median mortgage, below-median household incomes ($71,500 vs $90,298 state median), 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.