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ABS 2021 Census · Updated 21 May 2026
Undullah is a regional centre in Queensland, Australia, with a population of approximately 24, making it a boutique locality. Located approximately 45 km from the Brisbane CBD, Undullah is a regional area in Queensland. The median household income is $207,948 per year.
Undullah benefits from a high-income resident base, supporting premium property pricing. As a regional location, growth prospects depend on local economic conditions and infrastructure investment.
Official Australia Post postcode for Undullah. 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 Undullah 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.
Undullah is a smaller community of 24 — about 0% 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 $207,948/year runs 130% 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. At 45 km from Brisbane, Undullah is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price. Separate houses make up 92% of dwellings — 15 percentage points above the Queensland median of 77% — pointing to a family-oriented, land-rich market where value is concentrated in the underlying block.
How Undullah stacks up against the median of all Queensland suburbs in our dataset. Positive values mean Undullah sits above the state median; negative means below.
| Metric | Undullah | QLD median | Δ vs state |
|---|---|---|---|
| Population | 24 | 5,474 | -100% |
| Median household income | $207,948/yr | $90,298/yr | +130% |
| Median mortgage (monthly) | $1,500 | $1,733 | -13% |
| Distance to CBD | 45 km | 62 km | -27% |
| Separate houses | 92% | 77% | +15pp |
Pre-inspection briefing for Undullah — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 24 means liquidity is thin and capital growth tends to lag the wider Queensland market over full cycles.
Median rental data was not captured for Undullah. Use current realestate.com.au and Domain listings to triangulate a realistic weekly rent before committing, then feed that number into our rental yield calculator.
With 92% houses in a 24-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 Undullah property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Undullah are modest for 2026 — incomes 130% above the QLD median of $90,298 and a population of 24 suggest gains will lag headline metro markets. Rental fundamentals will need to be verified against live listings, as a clean median rent was not recorded for Undullah. The EquitySight investment score of 54/100 places Undullah 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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Undullah scores 54/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 24, median household income of $207,948/year. 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 Undullah are an above-state-median household income of $207,948/year, a dwelling mix that is 92% 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.
Undullah has a usual resident population of approximately 24, 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.
Undullah sits 45 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.
A reliable median rent was not captured for Undullah. Benchmark expected weekly rent on realestate.com.au and Domain, or the state rental tribunal's rent dashboard. Most Australian investors target a 4–5% gross yield as a baseline.
The median monthly mortgage repayment in Undullah is $1,500, or approximately $18,000/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.
Census data was not complete enough in Undullah to compute a clean rent-to-mortgage coverage. Use current listings to benchmark weekly rent, then plug your expected purchase price into our rental yield calculator to see whether the investment runs cash-flow positive or negative.
The main risks are a thin buyer pool (24 residents), interest-rate sensitivity on the $1,500 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.