Suburb overview
Hewett is an outer-metropolitan suburb of Adelaide, Australia, with a population of approximately 2,961, making it a boutique locality. Located approximately 41 km from the Adelaide CBD, Hewett is a outer metro area in South Australia. The median household income is $126,828 per year.
Location
Key indicators
Postcode
5118
Postcode for Hewett, from a community postcode dataset cross-checked against Australia Post. A postcode may cover multiple suburbs.
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Population
2,961
Usual resident population at the most recent census.
Median weekly rent
$690/wk
Median weekly rent — as at Jan–Mar 2026, Consumer & Business Services (SA) (CC BY 4.0).
Distance to CBD
41 km
Straight-line distance from the suburb centroid to the nearest capital city CBD. Actual driving distance will be longer.
Housing
Median monthly mortgage
$1,733/mo
Monthly median mortgage repayment for households currently paying off a mortgage.
Home type
97% houses
Proportion of separate houses versus units, townhouses, and other home types. Useful for investors assessing rental demand mix.
Why people like living in Hewett
- Outer-metro setting about 41 km from Adelaide — more space, quieter streets.
- Predominantly separate houses (97%) — suburban lifestyle with more land.
- Newer estates with modern homes and family-sized blocks.
Who Hewett suits
Pros and cons
Pros
- Rent sits within an affordable share of local incomes, supporting tenant demand.
- Affordable entry point compared with inner-city suburbs.
- Established infrastructure and existing community base.
Cons
- Long distance to the CBD (41 km) — plan for commute time or local employment.
- New-estate oversupply risk — many similar homes can compete for the same buyers.
Investment insight
2,961 residents places Hewett squarely in the middle of the South Australia suburb size distribution (state median 3,699), with market depth comparable to most SA localities. Median household income of $126,828/year runs 57% above the South Australia suburb median of $80,964, indicating strong purchasing power and the type of demographic profile that tends to sustain premium property prices through market cycles. Median rent of $690/week (as at Jan–Mar 2026, Consumer & Business Services (SA)) equates to roughly $2,990/month — about 173% of the $1,733/month median mortgage repayment recorded at the 2021 Census. On those figures rental income covers most or all of the recorded repayment, but repayments on new loans have risen with interest rates since 2021, so re-run the coverage at today's rates before treating this as a cash-flow suburb. At 41 km from Adelaide, Hewett is an outer-metro location where buyers are typically trading commute time for floor space and a lower entry price. Separate houses make up 97% of dwellings — 24 percentage points above the South Australia median of 73% — pointing to a family-oriented, land-rich market where value is concentrated in the underlying block.
Investment tip
This suburb suits long-term investors due to steady population growth and affordable entry prices. Look for established streets close to schools and shops rather than raw new-estate land. At the 2021 Census, local rents consumed roughly 14% of household income — a dated but useful sanity check on tenant affordability.
Hewett vs South Australia median
How Hewett stacks up against the median of all South Australia suburbs in our dataset. Positive values mean Hewett sits above the state median; negative means below.
| Metric | Hewett | SA median | Δ vs state |
|---|---|---|---|
| Population | 2,961 | 3,699 | -20% |
| Median household income | $126,828/yr | $80,964/yr | +57% |
| Median rent (weekly, 2021 Census) | $340 | $320 | +6% |
| Median mortgage (monthly, 2021 Census) | $1,733 | $1,616 | +7% |
| Distance to CBD | 41 km | 13 km | +215% |
| Separate houses | 97% | 73% | +24pp |
Investor checklist
Pre-inspection briefing for Hewett — every item is derived from public datasets, with full citations in our data sources page.
- Market depth: 2,961 residents — 80% of the SA suburb median (3,699).
- Purchasing power: median household income $126,828/year (+57% vs South Australia suburb median of $80,964).
- Cash-flow coverage (2021 Census): $340/week rent (≈ $1,473/month) covered ~85% of the $1,733/month median mortgage at the 2021 Census — verify against current rents and rates.
- CBD access: 41 km straight-line from Adelaide (state suburb median 13 km).
- Dwelling mix: 97% separate houses — house-dominant market (vs 73% state median).
- Rate stress-test: budget ~$173/month extra for a 1-percentage-point RBA rate rise on top of the $1,733/month median repayment.
- Tenant rent burden: 14% of the median household income is spent on rent — comfortably affordable.
Investment strategy
Limited buy-and-hold upside: a small population of 2,961 means liquidity is thin and capital growth tends to lag the wider South Australia market over full cycles.
Strong rental coverage at the 2021 Census: $340/week (~$1,473/month) covered 85% of the $1,733/month median mortgage, a shortfall of just $260/month. Both rents and repayments have moved since 2021 — verify current figures, though this suburb has historically leaned cash-flow-friendly.
With 97% houses in a 2,961-person market, renovation margins depend on individual street and aspect rather than any suburb-wide story — do comparable-sales analysis before committing capital.
Risk factors
- Interest-rate sensitivity: the $1,733/month median mortgage in Hewett means a 1-percentage-point RBA rate rise could add roughly $173/month to repayments, reducing buyer borrowing capacity and cooling prices.
- Premium-pricing risk: incomes 57% above the South Australia median ($126,828 vs $80,964) correlate with elevated purchase prices and compressed gross yields — enter only with a clear capital-growth thesis and a comfortable deposit.
- Liquidity risk: with 2,961 residents, Hewett has a thinner pool of buyers and tenants than larger suburbs. Expect longer days-on-market on resale and budget for potential vacancy gaps between tenancies.
- Commute distance: at 41 km from the nearest CBD, Hewett depends on local employment rather than city-driven commuter demand, which amplifies the market's sensitivity to regional industry slowdowns.
- House-dominant stock: 97% of dwellings are separate houses, so value is concentrated in land — weather events, insurance repricing and land-tax changes hit investors here more directly than in a unit-heavy suburb.
Run the numbers on a Hewett property
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Start your journey near Hewett →2026 outlook
Capital-growth expectations for Hewett are modest for 2026 — incomes 57% above the SA median of $80,964 and a population of 2,961 suggest gains will lag headline metro markets. At the 2021 Census, rental coverage ran at ~85% of the typical mortgage ($1,473/month rent vs $1,733/month repayment), keeping cash flow in positive or near-neutral territory. Verify against current rents and rates. Overall investor sentiment for Hewett is balanced heading into the second half of 2026, based on its income, rent and mortgage profile relative to the South Australia median.
Frequently asked questions
Is Hewett a good suburb for investment?
Whether Hewett suits you depends on your strategy, but the fundamentals are concrete: a population of 2,961, a median household income of $126,828/year and median weekly rent of $340. Weigh those against your goal — cash flow, capital growth, or a value-add renovation — each of which we break down with suburb-specific ABS numbers elsewhere on this page.
What drives property demand in Hewett?
The main demand drivers in Hewett are an above-state-median household income of $126,828/year, a dwelling mix that is 97% separate houses. Together these shape both owner-occupier and tenant demand.
What is the population of Hewett?
Hewett has a usual resident population of approximately 2,961, 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.
How far is Hewett from the Adelaide CBD?
Hewett sits 41 km straight-line from the Adelaide CBD. This is an outer-metro location; local employment and infrastructure announcements tend to move prices more than CBD connectivity alone.
What is the median rent in Hewett?
The median weekly rent in Hewett is $690 (as at Jan–Mar 2026, Consumer & Business Services (SA)), equating to approximately $35,880/year in gross rental income. Confirm against current listings on realestate.com.au and Domain before making an offer.
What is the typical mortgage repayment in Hewett?
The median monthly mortgage repayment in Hewett 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.
Is Hewett cash-flow positive for investors?
A median weekly rent of $340 works out to $1,473/month, covering 85% of the median mortgage repayment of $1,733/month. That leaves a $260/month shortfall (around $3,120/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.
What are the main risks of investing in Hewett?
The main risks are a thin buyer pool (2,961 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.
How we built this Hewett profile
The population figure on this page comes from the ABS 2021 Census. The postcode comes from a community postcode dataset cross-checked against Australia Post. The dwelling mix is from the ABS 2021 Census. The median household income is the ABS 2021 Census median weekly household income, annualised. Distance to the CBD is calculated from the suburb's ABS centroid. The Census median rent and mortgage figures are 2021 figures and are labelled as such wherever they appear — they are five years old and have moved substantially since. The current median weekly rent in Key indicators is a genuine recent figure from Consumer & Business Services (SA) (Jan–Mar 2026), published under a Creative Commons licence and dated on the page. We do not publish an investment score or school/park counts for this suburb. See our methodology and data sources for exactly what's measured and what's estimated.