Port Willunga at a glance
Median house
$1,175,000
Median unit
$221,760
Walk score
2
Very car dependent
Population
1,785
Median age 44
The brief
What to know about Port Willunga.
The postcode for Port Willunga is 5173 (SA), part of Greater Adelaide.
The median house price in Port Willunga is $1,175,000.
Port Willunga (5173) sits in the Onkaparinga region of South Australia. The median house here is $1,175,000, well above the South Australia median of around $720K.
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.
Side by side
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Day to day
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 28°C (warm), winter mornings around 7°C (cool). Annual rainfall lands at about 448mm. Data comes from the Bureau of Meteorology's Adelaide (Kent Town) station, 11.1km away.
Schooling within or near the suburb covers 6 government primary, 2 government secondary, 1 Catholic, 2 independent.
Who lives here
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.
Population
1,785
Median age
44
Family households
66%
Lone person
30%
Demographics data as of May 2026· ABS 2021 Census
Houses change hands at $1,175,000 on a typical sale, well above the South Australia median. Units come in around $221,760, roughly 81% below the house median.
For buyers
A 20% deposit on the median house works out to roughly $235,000. Prices sit well above the South Australia median, so plan for a stretched deposit and shop carefully on borrowing capacity.
Market
The price of a home here.
Median house price
$1,175,000
+0.0% over the past year. Median unit price $221,760.
Sales data as of July 2026· sales-sa
Rental and ownership
Weekly rent (house)
$605/wk
Weekly rent (unit)
$328/wk
Owner occupied
75%
Renter occupied
23%
At a deeper level
$1,175,000
$221,760
1,785
Median age: 44
Rental data as of March 2026· rental-sa
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For investors
Investment overview.
Gross rental yield on houses sits at 2.68% (median rent $605/wk against a $1,175,000 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.
Gross Yield (House)
Source: data.sa.gov.au · July 20262.68%
Based on $1,175,000 median
Gross Yield (Unit)
Source: data.sa.gov.au · July 20267.69%
Based on $221,760 median
Annual Growth (House)
Source: data.sa.gov.au · July 2026–
Year-on-year capital growth
Annual Growth (Unit)
Source: data.sa.gov.au · July 2026–
Year-on-year capital growth
Owner Occupancy
Source: ABS Census 2021 · May 202675%
Higher = more owner-occupier demand
Days on Market
Source: data.sa.gov.au · July 2026–
Lower = higher buyer demand
Gross rental yield is annual rent divided by purchase price, before expenses. It does not account for vacancy rates, management fees, maintenance, or financing costs. Use this as a starting point for further research.
Safety
Crime and safety.
74
total offences in 2025-26
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of June 2026· State Police Open Data
Getting around
Walkability.
2
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Port Willunga.
Local schools for Port Willunga
View the catchment for each school to find out more.
Government School Catchment
Aldinga Beach Primary School
Aldinga Payinthi College
Seaford Rise Primary School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
448 mm
Hottest Month (avg max)
28.0°C
Coldest Month (avg min)
7.0°C
Monthly Rainfall (mm)
Weather data from BOM station Adelaide (Kent Town) (11 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Port Willunga.
- What is the median house price in Port Willunga?
- The median house price in Port Willunga, SA 5173 is $1,175,000. The median unit price is $221,760.
- 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 of Adelaide, in SA 5173. It is part of the Greater Adelaide area, in the City of Onkaparinga region.
- What is the average rent in Port Willunga?
- The median weekly rent for houses is $605, 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 cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
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