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Suburb profile ·Onkaparinga LGA · SA ·5173

Port Willunga SA 5173

Port Willunga is in Onkaparinga LGA, SA, postcode 5173, with population 1,785.

The read

Livability-led

There are enough stretched or weaker signals here that you should assume trade-offs rather than a clean story. Use compare mode to see whether the downside is price, local quality, or weaker momentum before treating it as a target suburb.

$605/wk
-3.4% YoY
Mar 2025 → Mar 2026 · 5 periods
SA private rent report · suburb grain · Mar 2026
$652
$521
Mar 2025Mar 2026
Why it fits

Transport coverage adds a practical access signal.

What to check

Gross yield looks low for an income-first use case.

Median house
$1.2M
House median, latest period
6.8%YoY D7 vs AU
Median rent
$605/wk
Rent context available
3.4%YoY D10 vs AU
Gross yield
2.7%
Low yield band
D8 vs AU
Population
1,785
2K local footprint
D8 vs AU
Schools
No matched school data
Solar
4,074
207 added 12mo · 23MW

Price history

HousesUnits

Trend & investor depth

Indicative cashflow-$649/wk (-$33,745/yr) · interest-only @ 6.1%, 80% LVR

Indicative cashflow is interest-only and excludes tax — use the calculator for a full projection.

Affordability

Buying
17.2x
median home price as a multiple of annual household income
Stretched
Renting
46%
median weekly rent as a share of gross household income (the 30% rule)
High stress

Owners with a mortgage repay a median of $1,300/mo, while renters pay about $2,622/mo — renting runs $1,322/mo higher on these medians.

Median price
$1.18M
Household income · yr
$68K
Median rent · wk
$605
Owner mortgage · mo
$1,300
Gross yield
2.7%

Household income

$68K household · yr-9.3% vs SA suburb median
Personal
$36K
Family
$85K
Household
$68K
Crime 2024-25
62
3,473 per 100k
D5 vs AU

Crime

Rate · per 100k3,473
Total incidents62· 2024-25
  • Assault1243%
  • Break And Enter1450%
  • Drug Offences00%
  • Fraud27%

Full data detail

Port Willunga SA — Property Data and Demographics

Port Willunga is a small locality in South Australia within the Onkaparinga local government area (postcode 5173). The area has roughly 1,785 residents and a settled mid-life population, with a median age of 44. Households earn a median income of $68K per year, with an average household size of 2.3 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.9% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are technicians & trades, professionals, community & personal service. Employment in the area leans toward healthcare and construction. The top ancestries reported are English, Australian, Scottish.

Port Willunga has a median house price of $1.2 million, which has risen solidly by 6.8% year-on-year. The current median weekly rent is $605. This gives a gross rental yield of approximately 2.7%. The median monthly mortgage repayment is $1,300.

Public transport access includes 14 bus stops. The crime rate in the Onkaparinga LGA is below average at 3,473 incidents per 100,000 population.

On the investment side, Gross rental yield sits at around 2.7% (low yield). Property prices are near the state median ($1.2M/$950K). The price-to-income ratio of 17.2x is considered stretched. House prices have moved +6.8% year-on-year. Population growth of +0.9% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.

Market & money
Investment signalsHeuristics
Rental Yield2.7% Low Yield
Price vs State$1.2M/$950K· Near Median
Affordability17.2x Stretched
Price Momentum+6.8% Rising
Pop. Growth+0.9%· Stable
Development+0%· Steady
InvestmentSA
Mortgage · mth$1,300
Rent · wk(Census)$328
Market rent · wk(Q1 2026)$605
Gross yield1.5%
Price / income17.2x
Population growth · Onkaparinga LGAABS ERP
Population (2025)184,827
5-year growth+1.1% CAGR
YoY change+0.9%
20012025
Development · Onkaparinga LGAABS Approvals
Approvals (2026)892
Houses574
Units319
YoY change+0%
Employment · Onkaparinga LGASALM
Unemployment (Dec-25)4.4%
YoY change-0.7pp
Dec-10Dec-25
Property investors · Postcode 5173ATO
Negatively geared336 (4.4% of filers)
Avg rental loss$5,345/yr
Landlords (rental income)753
Reported capital gains463
People & prosperity
DemographicsCensus 21
Population1,785
Median age44
Household size2.3
HH income · wk$1,313
Personal income · wk$690
Persons / bedroom0.7
SEIFA indexABS
Advantage (IRSAD)3/10
Education (IEO)4/10
Economic (IER)3/10
Disadvantage (IRSD)3/10
Area & amenity
Local amenitiesOSM
Supermarkets0
Pharmacies0
GP / clinics0
Fuel stations0
Cafes & dining1
TransportGTFS
Bus stops14
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Current status
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Sources & freshness
Strong evidence

Port Willunga carries enough direct local evidence for a first-pass decision.

QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.

PRICE POSTURE
Prices come from release-based suburb series.

Official quarterly house sales workbooks; units remain on ABS fallback coverage

RENT POSTURE
Rent is using a state market dataset when available.

Use current rent as a starting signal, not as a fixed underwriting truth.

SERVICE POSTURE
Service coverage is matched locally, not inferred nationally.

Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.

Data status
Property prices
SA metropolitan median house sales · 2026-Q1 · Official quarterly house sales workbooks; units remain on ABS fallback coverage
stable source · automated · every update · quarterly
Available
Market rent
SA Housing Authority / CBS · Q1 2026 · State market dataset
medium stability · automated · every update · quarterly
Available
Crime
State crime dataset · 2024-25 · Area-level release dataset
Available
Schools
ACARA 2025 · No local school matches exposed
stable source · automated · every update · annual
Missing
Hospitals
AIHW · No linked local hospital coverage
medium stability · manual file · snapshot · mixed
Missing
Transport
GTFS feeds · 14 matched stops/stations
medium stability · manual file · snapshot · mixed
Available
Population growth
ABS ERP · 2025 · Annual estimate series
stable source · automated · every update · annual
Available
Building approvals
ABS Building Approvals · 2026 · Annual release series
stable source · automated · every update · monthly
Available
Available means a direct local dataset is linked. Verify means coverage exists but freshness or precision is weaker, such as ABS price fallback, Census rent fallback, or low-confidence hospital matching.

Port Willunga FAQ

Common questions
  1. What LGA is Port Willunga in?

    Port Willunga is in the Onkaparinga Local Government Area, SA, postcode 5173. Council-level context for Onkaparinga LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.

  2. What is the median house price in Port Willunga?

    The current median house price in Port Willunga, SA is $1.2M, based on the latest available sales data from state Valuers General offices and ABS Data by Region.

  3. What is the typical weekly rent in Port Willunga?

    The median weekly rent in Port Willunga is $605/wk, based on the current market rent dataset. The current rent signal is rent context available.

  4. What does the rent signal say about Port Willunga?

    Rent context available: Port Willunga has usable rent context. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.

  5. Is Port Willunga a good investment?

    QuickProperty's investment signals for Port Willunga show: Low Yield, Near Median, Stretched. These are computed from price, rent, income, and population data — not an opaque score.

  6. Where does QuickProperty get its data for Port Willunga?

    Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.

  7. How often is the Port Willunga data updated?

    Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.