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ABS 2021 Census · Updated 21 May 2026
Eighteen Mile is a coastal suburb in New South Wales, Australia, with a population of approximately 3, making it a boutique locality. Located approximately 527 km from the Sydney CBD, Eighteen Mile is a coastal area in New South Wales. The median household income is $26,000 per year.
Eighteen Mile's income profile suggests a value-oriented market with competitive purchase prices. Seaside positioning attracts both owner-occupiers and holiday rental demand.
Official Australia Post postcode for Eighteen Mile. 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 Eighteen Mile 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.
Eighteen Mile is a smaller community of 3 — about 0% of the New South Wales suburb median (5,325) — so investors should factor in the narrower buyer pool and longer average time-on-market. Eighteen Mile's median household income of $26,000/year is 73% below the New South Wales suburb median ($97,552) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. The median weekly rent of $250 translates to approximately $13,000/year in gross rental income, setting the upper bound on yield before vacancy, rates, insurance and maintenance. Eighteen Mile is 527 km from Sydney, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand.
How Eighteen Mile stacks up against the median of all New South Wales suburbs in our dataset. Positive values mean Eighteen Mile sits above the state median; negative means below.
| Metric | Eighteen Mile | NSW median | Δ vs state |
|---|---|---|---|
| Population | 3 | 5,325 | -100% |
| Median household income | $26,000/yr | $97,552/yr | -73% |
| Median rent (weekly) | $250 | $430 | -42% |
| Distance to CBD | 527 km | 45 km | +1071% |
Pre-inspection briefing for Eighteen Mile — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 3 means liquidity is thin and capital growth tends to lag the wider New South Wales market over full cycles.
Gross rent of $250/week (~$13,000/year) sets the yield ceiling. Cross-check against your purchase price to confirm whether this suburb hits the 4–5% gross yield most Australian investors target.
With a population of 3, the resale market in Eighteen Mile may not reliably reward cosmetic renovations — a longer hold is typically a better strategy at this scale, letting land-value appreciation do the work instead.
Run the numbers on a Eighteen Mile property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Eighteen Mile are modest for 2026 — incomes 73% below the NSW median of $97,552 and a population of 3 suggest gains will lag headline metro markets. Rents sit around $250/week, setting the baseline gross rental income at roughly $13,000/year — refine this against current listings before running your numbers. The EquitySight investment score of 33/100 places Eighteen Mile in the lower tier of Australian suburbs we profile, and overall investor sentiment is cautious heading into the second half of 2026.
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Eighteen Mile scores 33/100 on our EquitySight investment framework — a weak rating. That score is driven by a population of 3, median household income of $26,000/year and median weekly rent of $250. 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 Eighteen Mile are a median household income of $26,000/year, 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.
Eighteen Mile has a usual resident population of approximately 3, compared with a New South Wales suburb median of 5,325 — 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.
Eighteen Mile sits 527 km straight-line from the Sydney 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 $250 in Eighteen Mile, equating to approximately $13,000/year in gross rental income (state median $430/week). Market rents have typically drifted above the recorded figure — verify against current listings on realestate.com.au and Domain before making an offer.
A reliable median mortgage figure was not captured for Eighteen Mile. Use our loan serviceability calculator to estimate a realistic monthly repayment for your target purchase price and deposit.
Census data was not complete enough in Eighteen Mile 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 (3 residents), interest-rate sensitivity, below-median household incomes ($26,000 vs $97,552 state median), the broader New South Wales 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.