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ABS 2021 Census · Updated 21 May 2026
Darlington is a well-established middle-ring suburb of Adelaide, Australia, with a population of approximately 1,275, making it a boutique locality. Located approximately 12 km from the Adelaide CBD, Darlington is a middle ring area in South Australia. The median household income is $83,252 per year.
Household incomes in Darlington sit in a comfortable mid-range for the South Australia market. The short commute to the city centre is a key demand driver.
Official Australia Post postcode for Darlington. 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 Darlington 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.
Darlington is a smaller community of 1,275 — about 34% of the South Australia suburb median (3,699) — so investors should factor in the narrower buyer pool and longer average time-on-market. At $83,252/year, household income in Darlington is within 3% of the South Australia median ($80,964), placing the suburb firmly in the state's mainstream demographic band. Rent of $325/week (81% coverage of the $1,733/month median mortgage) leaves a gap of roughly $325/month that a typical investor bridges with negative gearing, depreciation and capital growth. 12 km from Adelaide places Darlington 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 Darlington stacks up against the median of all South Australia suburbs in our dataset. Positive values mean Darlington sits above the state median; negative means below.
| Metric | Darlington | SA median | Δ vs state |
|---|---|---|---|
| Population | 1,275 | 3,699 | -66% |
| Median household income | $83,252/yr | $80,964/yr | +3% |
| Median rent (weekly) | $325 | $320 | +2% |
| Median mortgage (monthly) | $1,733 | $1,616 | +7% |
| Distance to CBD | 12 km | 13 km | -8% |
| Separate houses | 76% | 73% | +3pp |
Pre-inspection briefing for Darlington — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 1,275 means liquidity is thin and capital growth tends to lag the wider South Australia market over full cycles.
Moderate rental coverage: rent of $325/week covers 81% of a $1,733/month mortgage, leaving a $325/month gap that an investor bridges with equity, depreciation and tax benefits.
With 76% houses in a 1,275-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 Darlington property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Darlington are modest for 2026 — incomes close to the SA median of $80,964 and a population of 1,275 suggest gains will lag headline metro markets. Rental coverage runs at ~81% of the typical mortgage ($1,408/month rent vs $1,733/month repayment), keeping cash flow in positive or near-neutral territory. The EquitySight investment score of 56/100 places Darlington 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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Darlington scores 56/100 on our EquitySight investment framework — a moderate rating. That score is driven by a population of 1,275, median household income of $83,252/year and median weekly rent of $325. 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 Darlington are proximity to Adelaide (12 km), an above-state-median household income of $83,252/year, a dwelling mix that is 76% 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.
Darlington has a usual resident population of approximately 1,275, 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.
Darlington sits 12 km straight-line from the Adelaide 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 $325 in Darlington, equating to approximately $16,900/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 Darlington is $1,733, or approximately $20,796/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 $325 works out to $1,408/month, covering 81% of the median mortgage repayment of $1,733/month. That leaves a $325/month shortfall (around $3,900/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 (1,275 residents), interest-rate sensitivity on the $1,733 median mortgage, 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.