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ABS 2021 Census · Updated 21 May 2026
Seventeen Mile Rocks is a well-established middle-ring suburb of Brisbane, Australia, with a population of approximately 2,699, making it a boutique locality. Located approximately 11 km from the Brisbane CBD, Seventeen Mile Rocks is a middle ring area in Queensland. The median household income is $136,084 per year.
Seventeen Mile Rocks benefits from a high-income resident base, supporting premium property pricing. Close CBD access strengthens tenant appeal and resale value.
Official Australia Post postcode for Seventeen Mile Rocks. 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 Seventeen Mile Rocks 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.
Seventeen Mile Rocks is a smaller community of 2,699 — about 49% of the Queensland suburb median (5,474) — so investors should factor in the narrower buyer pool and longer average time-on-market. Median household income of $136,084/year runs 51% above the Queensland suburb median of $90,298, indicating strong purchasing power and the type of demographic profile that tends to sustain premium property prices through market cycles. Rent of $425/week (85% coverage of the $2,156/month median mortgage) leaves a gap of roughly $314/month that a typical investor bridges with negative gearing, depreciation and capital growth. 11 km from Brisbane places Seventeen Mile Rocks in the middle commuter belt, close enough for daily trips by car or rail but at a materially lower price point than inner suburbs.
This suburb suits long-term investors looking for a balance of rental yield and capital growth. Schools and transport underpin family demand. Local rents consume roughly 16% of household income — a useful sanity check on tenant affordability.
How Seventeen Mile Rocks stacks up against the median of all Queensland suburbs in our dataset. Positive values mean Seventeen Mile Rocks sits above the state median; negative means below.
| Metric | Seventeen Mile Rocks | QLD median | Δ vs state |
|---|---|---|---|
| Population | 2,699 | 5,474 | -51% |
| Median household income | $136,084/yr | $90,298/yr | +51% |
| Median rent (weekly) | $425 | $385 | +10% |
| Median mortgage (monthly) | $2,156 | $1,733 | +24% |
| Distance to CBD | 11 km | 62 km | -82% |
| Separate houses | 91% | 77% | +14pp |
Pre-inspection briefing for Seventeen Mile Rocks — every item is derived from public datasets, with full citations in our data sources page.
Strong buy-and-hold fundamentals: household incomes run 51% above the Queensland suburb median ($136,084 vs $90,298), and the 11 km CBD distance keeps this suburb in the primary demand zone. In Queensland, suburbs with this profile have historically clustered in the upper tercile of 10-year capital growth.
Strong rental coverage: $425/week (~$1,842/month) covers 85% of the $2,156/month median mortgage repayment, so the shortfall sits at just $314/month. Investors targeting positive cash flow should shortlist this suburb.
With 91% houses in a 2,699-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 Seventeen Mile Rocks property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Seventeen Mile Rocks enters 2026 with a demographic tailwind — household incomes 51% above the Queensland suburb median of $90,298 and a population of 2,699 give it the depth and purchasing power to outperform the wider QLD market over the next 12–18 months. Rental coverage runs at ~85% of the typical mortgage ($1,842/month rent vs $2,156/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 71/100 places Seventeen Mile Rocks in the upper-middle tier of Australian suburbs we profile, and overall investor sentiment is constructive heading into the second half of 2026.
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Seventeen Mile Rocks scores 71/100 on our EquitySight investment framework — a good rating. That score is driven by a population of 2,699, median household income of $136,084/year and median weekly rent of $425. 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 Seventeen Mile Rocks are proximity to Brisbane (11 km), an above-state-median household income of $136,084/year, a dwelling mix that is 91% 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.
Seventeen Mile Rocks has a usual resident population of approximately 2,699, 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.
Seventeen Mile Rocks sits 11 km straight-line from the Brisbane CBD. This is comfortable commuter territory, with reasonable rail and road access to the city.
The most recent census recorded a median weekly rent of $425 in Seventeen Mile Rocks, equating to approximately $22,100/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 Seventeen Mile Rocks is $2,156, or approximately $25,872/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 $425 works out to $1,842/month, covering 85% of the median mortgage repayment of $2,156/month. That leaves a $314/month shortfall (around $3,768/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 (2,699 residents), interest-rate sensitivity on the $2,156 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.