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ABS 2021 Census · Updated 21 May 2026
Mount Lewis is an outer-metropolitan suburb of Sydney, Australia, with a population of approximately 1,234, making it a boutique locality. Located approximately 16 km from the Sydney CBD, Mount Lewis is a outer metro area in New South Wales. The median household income is $80,028 per year.
Household incomes in Mount Lewis sit in a comfortable mid-range for the New South Wales market.
Official Australia Post postcode for Mount Lewis. 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 Mount Lewis 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.
Mount Lewis is a smaller community of 1,234 — about 23% of the New South Wales suburb median (5,325) — so investors should factor in the narrower buyer pool and longer average time-on-market. Household income of $80,028/year is 18% below the New South Wales median of $97,552, typically translating into lower entry prices and a tenant base more sensitive to rent increases. Median rent of $400/week (~$1,733/month) covers only 67% of the median mortgage of $2,571/month — the remaining $838/month must be funded from other income, so this suburb tilts toward capital growth rather than yield. 16 km from Sydney places Mount Lewis in the middle commuter belt, close enough for daily trips by car or rail but at a materially lower price point than inner suburbs.
How Mount Lewis stacks up against the median of all New South Wales suburbs in our dataset. Positive values mean Mount Lewis sits above the state median; negative means below.
| Metric | Mount Lewis | NSW median | Δ vs state |
|---|---|---|---|
| Population | 1,234 | 5,325 | -77% |
| Median household income | $80,028/yr | $97,552/yr | -18% |
| Median rent (weekly) | $400 | $430 | -7% |
| Median mortgage (monthly) | $2,571 | $2,167 | +19% |
| Distance to CBD | 16 km | 45 km | -64% |
| Separate houses | 81% | 76% | +5pp |
Pre-inspection briefing for Mount Lewis — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 1,234 means liquidity is thin and capital growth tends to lag the wider New South Wales market over full cycles.
Moderate rental coverage: rent of $400/week covers 67% of a $2,571/month mortgage, leaving a $838/month gap that an investor bridges with equity, depreciation and tax benefits.
With 81% houses in a 1,234-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 Mount Lewis property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Mount Lewis are modest for 2026 — incomes 18% below the NSW median of $97,552 and a population of 1,234 suggest gains will lag headline metro markets. Rental coverage runs at ~67% of the typical mortgage ($1,733/month rent vs $2,571/month repayment), leaving a manageable top-up for most investors. The EquitySight investment score of 51/100 places Mount Lewis 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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Mount Lewis scores 51/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 1,234, median household income of $80,028/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 Mount Lewis are proximity to Sydney (16 km), a median household income of $80,028/year, a dwelling mix that is 81% 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.
Mount Lewis has a usual resident population of approximately 1,234, 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.
Mount Lewis sits 16 km straight-line from the Sydney 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 $400 in Mount Lewis, equating to approximately $20,800/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.
The median monthly mortgage repayment in Mount Lewis is $2,571, or approximately $30,852/year (vs $2,167/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 67% of the median mortgage repayment of $2,571/month. That leaves a $838/month shortfall (around $10,056/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 (1,234 residents), interest-rate sensitivity on the $2,571 median mortgage, below-median household incomes ($80,028 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.