Port Willunga, SA 5173
City of OnkaparingaAll suburbs in postcode 5173
Updated
Median house price
$1,025,000
+22.4% over the past year.
Median of 10 house sales · SA Government · the latest published quarter (updated October 2026)
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Port Willunga at a glance
- Median unit
- $221,760
- Weekly rent
- $600
- Houses · units $328
- Population
- 1,785
- Median age 44
Prices: Median of 10 house sales · SA Government · the latest published quarter (updated October 2026) · Rent: SA rental bond data, June 2026 · Population: 2021 Census
House prices in Port Willunga
Houses change hands at $1,025,000 on a typical sale, above the South Australia median (10 house sales, SA Government quarterly medians, the latest published quarter (updated October 2026)). Units come in around $221,760, roughly 78% below the house median. The last 12 months delivered strong growth (+22.4%), well clear of the long-run average for the state.
For sellers
Twelve-month growth is +22.4%, supporting confident pricing at the upper end of recent comparables.
For buyers
A 20% deposit on the median house works out to roughly $205,000. Prices sit above the South Australia median, so plan for a stretched deposit and shop carefully on borrowing capacity.
Rental data as of June 2026· SA rental bond data
Free appraisal in Port Willunga
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What to know about Port Willunga
Port Willunga (5173) sits in the Onkaparinga region of South Australia. The median house here is $1,025,000, above the South Australia median of around $720K. Prices have moved +22.4% over the past year, well clear of the South Australia average (5%).
Port Willunga has roughly 1,785 residents, with an established, older skew. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
What it’s like to live here
Port Willunga scores 2/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 27°C (warm), winter mornings around 8°C (cool). Annual rainfall lands at about 479 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schooling within or near the suburb covers 6 government primary, 2 government secondary, 1 Catholic, 2 independent.
Schools in Port Willunga
Location
Walkability
- Walk
- 2/100
- Transit
- 0/100
- Bike
- 100/100
Very car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Port Willunga's population at 1,785, with a median age of 44. That sits as an established, older skew. Households are predominantly owner-occupied (75% own, 23% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (66% family households, 30% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Family households
- 66%
- Lone person
- 30%
- Owner occupied
- 75%
- Renter occupied
- 23%
Demographics data as of May 2026· ABS 2021 Census
Investment overview
Gross rental yield on houses sits at 3.04% (median rent $600/wk against a $1,025,000 price tag). Units yield 7.69% gross, often the better cash-flow play for first-time investors. Renter share is modest (23%), so the rental pool is smaller and tenant demand can be patchier than in higher-density suburbs. The 12-month growth of +22.4% adds a capital-growth case on top of the yield.
- Gross yield, housesSource: data.sa.gov.au · Oct 2026
- 3.04%
- On the $1,025,000 median
- Gross yield, unitsSource: data.sa.gov.au · Oct 2026
- 7.69%
- On the $221,760 median
- 12-month change, housesSource: data.sa.gov.au · Oct 2026
- +22.4%
Gross rental yield is a year’s rent divided by the purchase price, before expenses. It leaves out vacancy, management fees, maintenance and financing costs, so treat it as a starting point.
Crime and safety
85 offences recorded in 2025-26
Top offence categories
Source: State Police Open Data
Crime data as of June 2026
Weather year-round
- Annual rainfall
- 479 mm
- Hottest month, avg max
- 27.0°C
- Coldest month, avg min
- 8.0°C
Rainfall by month
Our 1991 to 2020 averages of SILO data (Queensland Government, built from Bureau of Meteorology observations, CC BY 4.0) for this location.
Climate data as of October 2026· SILO (Queensland Government), from Bureau of Meteorology observations
Questions about Port Willunga
- What is the median house price in Port Willunga?
- The median house price in Port Willunga, SA 5173 is $1,025,000 (The SA Government's quarterly suburb median from 10 house sales, the latest published quarter (updated October 2026)). The median unit price is $221,760. Annual growth is +22.4%.
- How much is my house worth in Port Willunga?
- A useful starting point is the Port Willunga median house price of $1,025,000 (units $221,760). Your home will sit above or below that depending on land size, condition, position and what comparable homes nearby have sold for recently. For a figure specific to your property, request a free property appraisal from a local agent using the form on this page.
- Is Port Willunga a good investment?
- On the published figures, the gross rental yield on houses in Port Willunga is 3.0%: the median weekly house rent is $600 (SA rental bond data, June 2026) against the median house price of $1,025,000 (SA Government, the latest published quarter, updated October 2026). The median house price rose 22.4% over 12 months on the same SA Government figures. Whether Port Willunga is a good investment for you depends on the price you pay, your loan and holding costs, vacancy and your tax position. These are published market figures, not financial advice.
- What is the Port Willunga postcode?
- Port Willunga is in the 5173 postcode, in SA, in the City of Onkaparinga region.
- Where is Port Willunga?
- Port Willunga is a suburb in the City of Onkaparinga area, SA 5173.
- What is the average rent in Port Willunga?
- The median weekly rent for houses is $600, for units it's $328.
- What schools are in Port Willunga?
- There are 12 schools serving Port Willunga on this page, including Aldinga Beach Primary School, Aldinga Payinthi College, Tatachilla Lutheran College.
- How walkable is Port Willunga?
- Port Willunga has a Walk Score of 2 out of 100, highly car-dependent. transit score 0, bike score 100.
- What suburbs are near Port Willunga?
- Port Willunga is close to Aldinga, Aldinga Beach, Maslin Beach, Whites Valley, Tatachilla.
- What is the population of Port Willunga?
- The population of Port Willunga is approximately 1,785 (2021 Census). The median age is 44.
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Sources. House and unit medians from the NSW Valuer General, Land Victoria, the SA Government and the ABS; rents from the state rental bond authorities. Census from the ABS (2021), climate from the Bureau of Meteorology, hazard from Geoscience Australia, schools from ACARA and crime from state police open data. Each figure carries its source and date. How we source data
How we’re paid. The guides and this page are free. When a seller asks, we introduce one local agent, and the agent pays us a flat fee for the introduction, never a share of their commission; it costs the seller nothing. If a figure looks wrong, tell us and we’ll fix it.