Aldinga Beach, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Aldinga Beach is an outer southern suburb of Adelaide, lying within the City of Onkaparinga along the coast of the Fleurieu Peninsula. Before British colonisation the area was Country of the Kaurna people, who occupied the Adelaide plains and the western side of the peninsula; the Kaurna name recorded for Aldinga was Ngaltingga. The long sandy beach is a popular spot for swimming, surfing, snorkelling and scuba diving through the summer, and it looks out over the Aldinga Reef Aquatic Reserve, created to protect an unusual nearshore reef formation. Inland, the Aldinga Scrub Conservation Park preserves a remnant of the coastal scrub that once lined this shore, while the nearby Washpool wetland fills with the winter rains to provide important habitat for waterbirds such as the hooded plover. The smaller Silver Sands holiday area adjoins the suburb to the south, and a post office opened here in 1960 as the district settled into a relaxed seaside community.
Among Australia's less advantaged suburbs
Aldinga Beach is more socio-economically advantaged than about 19% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 925, 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.
Aldinga Beach at a glance
- Population (2021)
- 10,667
- Median age
- 39
- Median weekly household income
- $1,297
- SEIFA score
- 925
- Coordinates
- -35.2937, 138.4581
Aldinga Beach demographics (2021 Census)
The figures below profile Aldinga Beach 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 young adults (25–44) at 25%, 28% of homes are rented, and 21% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 2,222 | 21% |
| Youth (15–24) | 1,249 | 12% |
| Young adults (25–44) | 2,639 | 25% |
| Mid-life (45–64) | 2,605 | 24% |
| Seniors (65+) | 1,946 | 18% |
Share of the 10,661 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 1,057 | 26% |
| Owned with a mortgage | 1,720 | 43% |
| Rented | 1,116 | 28% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 3,683 | 91% |
| Townhouses & semis | 313 | 8% |
| Flats & apartments | 16 | 0% |
Tenure and dwelling shares are of the roughly 4,040 occupied private dwellings in Aldinga Beach.
- Median weekly rent
- $320
- Median monthly mortgage
- $1,408
- Average household size
- 2.5 people
- Median weekly family income
- $1,553
- Median weekly personal income
- $658
Community and culture
- Born overseas
- 2,103 (21%)
- Speaks a language other than English at home
- 437 (4%)
- Aboriginal and/or Torres Strait Islander
- 264 (2%)
Work and education
- Completed Year 12
- 3,836 (48%)
- Labour-force participation
- 59.3%
- Unemployment rate
- 6.1%
- Employed full-time
- 2,450
- Employed part-time
- 1,945
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 Aldinga Beach
Based on 2014–2023 records, the warmest month in Aldinga Beach 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 Aldinga Beach
Where is Aldinga Beach?
Aldinga Beach is a suburb of South Australia, Australia.
What is the population of Aldinga Beach?
At the 2021 Census, Aldinga Beach had a population of about 10,667.
Is Aldinga Beach an advantaged area?
Aldinga Beach has an ABS SEIFA score of 925, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 19 out of 100 — more socio-economically advantaged than about 19% of Australian suburbs.
What is the weather like in Aldinga Beach?
Aldinga Beach 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).
How big is Aldinga Beach?
Aldinga Beach is one of the most populous suburbs in South Australia — the 18th-largest by usual resident population at the 2021 Census (about 10,667 usual residents).
Where Aldinga Beach ranks
Aldinga Beach appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
- Largest suburbs in South Australia#18 of 25
Nearby suburbs in South Australia
More suburb guides in South Australia
Other hand-written, cited guides — browse all guides.