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ABS 2021 Census · Updated 21 May 2026
St Lucia is a well-established middle-ring suburb of Brisbane, Australia, with a population of approximately 12,220, making it a smaller community. Located 4 km from the Brisbane CBD, St Lucia is a middle ring area in Queensland. The median household income is $91,572 per year.
Strong household incomes in St Lucia underpin solid property demand. Its proximity to the CBD adds a strong location premium.
Official Australia Post postcode for St Lucia. 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 3 schools within or near this suburb.
Find schools near St Lucia on My School →Estimated 5 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.
With 12,220 residents, St Lucia is one of Queensland's more populous suburbs — roughly 2.2× the state median of 5,474 — giving it a deep buyer and tenant pool that typically supports higher transaction volumes and shorter average days on market. At $91,572/year, household income in St Lucia is within 1% of the Queensland median ($90,298), placing the suburb firmly in the state's mainstream demographic band. Rent of $410/week (89% coverage of the $2,000/month median mortgage) leaves a gap of roughly $223/month that a typical investor bridges with negative gearing, depreciation and capital growth. At 4 km from the Brisbane CBD, St Lucia sits inside the high-demand inner ring — properties here compete directly with the city's employment, transport and amenity networks. Only 29% of dwellings are separate houses (vs 77% state median), so this is a unit-heavy market where body-corporate decisions and strata supply meaningfully shape investor returns.
Middle-ring locations like this one historically reward patient holders — focus on homes near catchment-zone schools and major transport. Local rents consume roughly 23% of household income — a useful sanity check on tenant affordability.
How St Lucia stacks up against the median of all Queensland suburbs in our dataset. Positive values mean St Lucia sits above the state median; negative means below.
| Metric | St Lucia | QLD median | Δ vs state |
|---|---|---|---|
| Population | 12,220 | 5,474 | +123% |
| Median household income | $91,572/yr | $90,298/yr | +1% |
| Median rent (weekly) | $410 | $385 | +6% |
| Median mortgage (monthly) | $2,000 | $1,733 | +15% |
| Distance to CBD | 4 km | 62 km | -94% |
| Separate houses | 29% | 77% | -48pp |
Pre-inspection briefing for St Lucia — every item is derived from public datasets, with full citations in our data sources page.
Solid buy-and-hold profile: a population of 12,220 and household income close to the QLD median ($91,572 vs $90,298) give the market enough depth for patient capital growth without the premium entry price of inner suburbs.
Strong rental coverage: $410/week (~$1,777/month) covers 89% of the $2,000/month median mortgage repayment, so the shortfall sits at just $223/month. Investors targeting positive cash flow should shortlist this suburb.
Only 29% of dwellings are separate houses (vs 77% QLD 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 St Lucia property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Property values in St Lucia should track the wider Queensland market through 2026, with the $91,572/year median household income (close to the $90,298 state median) keeping the suburb firmly mid-pack. Rental coverage runs at ~89% of the typical mortgage ($1,777/month rent vs $2,000/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 75/100 places St Lucia 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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St Lucia scores 75/100 on our EquitySight investment framework — a good rating. That score is driven by a population of 12,220, median household income of $91,572/year and median weekly rent of $410. 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 St Lucia are proximity to Brisbane (4 km), an above-state-median household income of $91,572/year, a dwelling mix that is 29% separate houses, roughly 3 schools and 5 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.
St Lucia has a usual resident population of approximately 12,220, compared with a Queensland suburb median of 5,474 — placing it in the upper 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.
St Lucia sits 4 km straight-line from the Brisbane CBD. This is inner-ring territory — pricing competes directly with established Brisbane employment nodes.
The most recent census recorded a median weekly rent of $410 in St Lucia, equating to approximately $21,320/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 St Lucia is $2,000, or approximately $24,000/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 $410 works out to $1,777/month, covering 89% of the median mortgage repayment of $2,000/month. That leaves a $223/month shortfall (around $2,676/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 interest-rate sensitivity on the $2,000 median mortgage, a unit-heavy dwelling mix (29% houses) where body-corporate costs and apartment supply affect resale, 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.