Port Willunga, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Less advantaged than the national average
Port Willunga is more socio-economically advantaged than about 22% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 932, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Port Willunga at a glance
- Population (2021)
- 1,785
- Median age
- 44
- Median weekly household income
- $1,313
- SEIFA score
- 932
- Coordinates
- -35.2637, 138.4612
Port Willunga demographics (2021 Census)
The figures below profile Port Willunga using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 29%, 23% of homes are rented, and 16% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 330 | 18% |
| Youth (15–24) | 206 | 11% |
| Young adults (25–44) | 387 | 22% |
| Mid-life (45–64) | 514 | 29% |
| Seniors (65+) | 357 | 20% |
Share of the 1,794 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 268 | 38% |
| Owned with a mortgage | 265 | 38% |
| Rented | 164 | 23% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 676 | 95% |
| Townhouses & semis | 27 | 4% |
| Flats & apartments | 7 | 1% |
Tenure and dwelling shares are of the roughly 710 occupied private dwellings in Port Willunga.
- Median weekly rent
- $328
- Median monthly mortgage
- $1,300
- Average household size
- 2.3 people
- Median weekly family income
- $1,631
- Median weekly personal income
- $690
Community and culture
- Born overseas
- 271 (16%)
- Speaks a language other than English at home
- 44 (3%)
- Aboriginal and/or Torres Strait Islander
- 53 (3%)
Work and education
- Completed Year 12
- 751 (53%)
- Labour-force participation
- 57.3%
- Unemployment rate
- 6.3%
- Employed full-time
- 410
- Employed part-time
- 317
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Port Willunga
Based on 2014–2023 records, the warmest month in Port Willunga is January (average daytime high around 26.7°C) and the coolest is July (around 13.2°C). The area receives roughly 801 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 26.7°C | 16.2°C | 32 mm |
| Feb | 25.4°C | 15.8°C | 24 mm |
| Mar | 23.7°C | 14.9°C | 20 mm |
| Apr | 20.5°C | 13.2°C | 47 mm |
| May | 16.5°C | 11.1°C | 96 mm |
| Jun | 14°C | 9.1°C | 114 mm |
| Jul | 13.2°C | 8.4°C | 138 mm |
| Aug | 13.9°C | 8.1°C | 124 mm |
| Sep | 16.2°C | 9.2°C | 73 mm |
| Oct | 19.5°C | 10.8°C | 53 mm |
| Nov | 21.6°C | 12.4°C | 46 mm |
| Dec | 24.5°C | 14.2°C | 34 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Port Willunga
Where is Port Willunga?
Port Willunga is a suburb of South Australia, Australia.
What is the population of Port Willunga?
At the 2021 Census, Port Willunga had a population of about 1,785.
Is Port Willunga an advantaged area?
Port Willunga has an ABS SEIFA score of 932, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 22 out of 100 — more socio-economically advantaged than about 22% of Australian suburbs.
What is the weather like in Port Willunga?
Port Willunga has average daytime highs of about 19.6°C and overnight lows of about 11.9°C, with roughly 801 mm of rain across the year (based on 2014–2023 climate normals).
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