ABS 2021 Census · Updated 21 May 2026
Silkstone is an outer-metropolitan suburb of Brisbane, Australia, with a population of approximately 3,830, making it a boutique locality. Located approximately 29 km from the Brisbane CBD, Silkstone is a outer metro area in Queensland. The median household income is $68,588 per year.
Lower income levels in Silkstone typically translate to more affordable entry points for investors.
Official Australia Post postcode for Silkstone. 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 Silkstone on My School →Estimated 2 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.
Silkstone is a smaller community of 3,830 — about 70% of the Queensland suburb median (5,474) — so investors should factor in the narrower buyer pool and longer average time-on-market. Silkstone's median household income of $68,588/year is 24% 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 weekly rent of $305 equates to $1,322/month — about 96% of the median mortgage repayment of $1,383/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. At 29 km from Brisbane, Silkstone is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price.
This suburb suits long-term investors due to steady population growth and affordable entry prices. Look for established streets close to schools and shops rather than raw new-estate land. Local rents consume roughly 23% of household income — a useful sanity check on tenant affordability.
How Silkstone stacks up against the median of all Queensland suburbs in our dataset. Positive values mean Silkstone sits above the state median; negative means below.
| Metric | Silkstone | QLD median | Δ vs state |
|---|---|---|---|
| Population | 3,830 | 5,474 | -30% |
| Median household income | $68,588/yr | $90,298/yr | -24% |
| Median rent (weekly) | $305 | $385 | -21% |
| Median mortgage (monthly) | $1,383 | $1,733 | -20% |
| Distance to CBD | 29 km | 62 km | -53% |
| Separate houses | 87% | 77% | +10pp |
Pre-inspection briefing for Silkstone — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: household incomes 24% below the QLD median ($68,588 vs $90,298) means liquidity is thin and capital growth tends to lag the wider Queensland market over full cycles.
Strong rental coverage: $305/week (~$1,322/month) covers 96% of the $1,383/month median mortgage repayment, so the shortfall sits at just $61/month. Investors targeting positive cash flow should shortlist this suburb.
With 87% houses in a 3,830-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 Silkstone property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Silkstone are modest for 2026 — incomes 24% below the QLD median of $90,298 and a population of 3,830 suggest gains will lag headline metro markets. Rental coverage runs at ~96% of the typical mortgage ($1,322/month rent vs $1,383/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 53/100 places Silkstone 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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Silkstone scores 53/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 3,830, median household income of $68,588/year and median weekly rent of $305. 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 Silkstone are a median household income of $68,588/year, a dwelling mix that is 87% separate houses, roughly 1 schools and 2 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.
Silkstone has a usual resident population of approximately 3,830, 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.
Silkstone sits 29 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 $305 in Silkstone, equating to approximately $15,860/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 Silkstone is $1,383, or approximately $16,596/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 $305 works out to $1,322/month, covering 96% of the median mortgage repayment of $1,383/month. That leaves a $61/month shortfall (around $732/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 (3,830 residents), interest-rate sensitivity on the $1,383 median mortgage, below-median household incomes ($68,588 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.