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ABS 2021 Census · Updated 21 May 2026
Idalia is a coastal suburb in Queensland, Australia, with a population of approximately 4,563, making it a boutique locality. Located approximately 1107 km from the Brisbane CBD, Idalia is a coastal area in Queensland. The median household income is $131,248 per year.
Above-average earnings in Idalia support sustained property values. The coastal setting provides a lifestyle factor that underpins property values.
Official Australia Post postcode for Idalia. 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 Idalia 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.
4,563 residents places Idalia squarely in the middle of the Queensland suburb size distribution (state median 5,474), with market depth comparable to most QLD localities. Median household income of $131,248/year runs 45% 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. Median weekly rent of $400 equates to $1,733/month — about 90% of the median mortgage repayment of $1,920/month — meaning rental income covers most of a typical owner's repayment and this is a genuine cash-flow suburb before tax benefits. Idalia is 1107 km from Brisbane, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand.
This suburb can suit investors targeting renter demand driven by lifestyle. Insurance, climate risk, and seasonal rental patterns all warrant a close look. Local rents consume roughly 16% of household income — a useful sanity check on tenant affordability.
How Idalia stacks up against the median of all Queensland suburbs in our dataset. Positive values mean Idalia sits above the state median; negative means below.
| Metric | Idalia | QLD median | Δ vs state |
|---|---|---|---|
| Population | 4,563 | 5,474 | -17% |
| Median household income | $131,248/yr | $90,298/yr | +45% |
| Median rent (weekly) | $400 | $385 | +4% |
| Median mortgage (monthly) | $1,920 | $1,733 | +11% |
| Distance to CBD | 1107 km | 62 km | +1685% |
| Separate houses | 73% | 77% | -4pp |
Pre-inspection briefing for Idalia — every item is derived from public datasets, with full citations in our data sources page.
Moderate buy-and-hold potential: Idalia's 4,563-person market and $131,248 median household income work for investors who are selective on street location and property quality rather than counting on a suburb-wide rerating.
Strong rental coverage: $400/week (~$1,733/month) covers 90% of the $1,920/month median mortgage repayment, so the shortfall sits at just $187/month. Investors targeting positive cash flow should shortlist this suburb.
With 73% houses in a 4,563-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 Idalia property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Idalia are modest for 2026 — incomes 45% above the QLD median of $90,298 and a population of 4,563 suggest gains will lag headline metro markets. Rental coverage runs at ~90% of the typical mortgage ($1,733/month rent vs $1,920/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 68/100 places Idalia in the upper-middle tier of Australian suburbs we profile, and overall investor sentiment is balanced heading into the second half of 2026.
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Idalia scores 68/100 on our EquitySight investment framework — a good rating. That score is driven by a population of 4,563, median household income of $131,248/year and median weekly rent of $400. 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 Idalia are an above-state-median household income of $131,248/year, a dwelling mix that is 73% 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.
Idalia has a usual resident population of approximately 4,563, 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.
Idalia sits 1107 km straight-line from the Brisbane 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 $400 in Idalia, equating to approximately $20,800/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 Idalia is $1,920, or approximately $23,040/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 $400 works out to $1,733/month, covering 90% of the median mortgage repayment of $1,920/month. That leaves a $187/month shortfall (around $2,244/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 (4,563 residents), interest-rate sensitivity on the $1,920 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.