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ABS 2021 Census · Updated 21 May 2026
Waterloo is a regional centre in South Australia, Australia, with a population of approximately 82, making it a boutique locality. Located approximately 108 km from the Adelaide CBD, Waterloo is a regional area in South Australia. The median household income is $44,148 per year.
Lower income levels in Waterloo typically translate to more affordable entry points for investors. Regional positioning means lower entry costs but potentially longer hold periods for capital gains.
Official Australia Post postcode for Waterloo. 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 Waterloo 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.
Waterloo is a smaller community of 82 — about 2% of the South Australia suburb median (3,699) — so investors should factor in the narrower buyer pool and longer average time-on-market. Waterloo's median household income of $44,148/year is 45% below the South Australia suburb median ($80,964) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. Median rent of $73/week (~$316/month) covers only 68% of the median mortgage of $467/month — the remaining $151/month must be funded from other income, so this suburb tilts toward capital growth rather than yield. Waterloo is 108 km from Adelaide, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand.
How Waterloo stacks up against the median of all South Australia suburbs in our dataset. Positive values mean Waterloo sits above the state median; negative means below.
| Metric | Waterloo | SA median | Δ vs state |
|---|---|---|---|
| Population | 82 | 3,699 | -98% |
| Median household income | $44,148/yr | $80,964/yr | -45% |
| Median rent (weekly) | $73 | $320 | -77% |
| Median mortgage (monthly) | $467 | $1,616 | -71% |
| Distance to CBD | 108 km | 13 km | +731% |
| Separate houses | 63% | 73% | -10pp |
Pre-inspection briefing for Waterloo — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 82 means liquidity is thin and capital growth tends to lag the wider South Australia market over full cycles.
Moderate rental coverage: rent of $73/week covers 68% of a $467/month mortgage, leaving a $151/month gap that an investor bridges with equity, depreciation and tax benefits.
Only 63% of dwellings are separate houses (vs 73% SA 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 Waterloo property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Waterloo are modest for 2026 — incomes 45% below the SA median of $80,964 and a population of 82 suggest gains will lag headline metro markets. Rental coverage runs at ~68% of the typical mortgage ($316/month rent vs $467/month repayment), leaving a manageable top-up for most investors. The EquitySight investment score of 24/100 places Waterloo 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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Waterloo scores 24/100 on our EquitySight investment framework — a weak rating. That score is driven by a population of 82, median household income of $44,148/year and median weekly rent of $73. 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 Waterloo are a median household income of $44,148/year, a dwelling mix that is 63% 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.
Waterloo has a usual resident population of approximately 82, compared with a South Australia suburb median of 3,699 — 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.
Waterloo sits 108 km straight-line from the Adelaide 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 $73 in Waterloo, equating to approximately $3,796/year in gross rental income (state median $320/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 Waterloo is $467, or approximately $5,604/year (vs $1,616/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 $73 works out to $316/month, covering 68% of the median mortgage repayment of $467/month. That leaves a $151/month shortfall (around $1,812/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 (82 residents), interest-rate sensitivity on the $467 median mortgage, below-median household incomes ($44,148 vs $80,964 state median), the broader South Australia 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.