Hallett Cove, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Hallett Cove is a coastal suburb of Adelaide in the City of Marion, about 21 km south of the city centre, set around a small rocky beach where the Field River meets the sea. It is best known for the Hallett Cove Conservation Park, whose clifftops carry glacial striations — scratches worn into the rock that are among Australia's clearest evidence of the Permian glaciation, when this land lay within the ancient supercontinent of Gondwana. The park also holds deep archaeological significance and great cultural significance for the Kaurna people. The suburb takes its name from John Hallett, who is said to have come upon the cove in 1837 while searching for missing stock. Today it is a quiet residential area valued for its coastal walks and remarkable geology.
More advantaged than the national average
Hallett Cove is more socio-economically advantaged than about 71% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1025, 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.
Hallett Cove at a glance
- Population (2021)
- 12,512
- Median age
- 43
- Median weekly household income
- $1,871
- SEIFA score
- 1025
- Coordinates
- -35.0743, 138.5105
Hallett Cove demographics (2021 Census)
The figures below profile Hallett Cove 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%, 14% of homes are rented, and 34% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 2,055 | 16% |
| Youth (15–24) | 1,383 | 11% |
| Young adults (25–44) | 3,019 | 24% |
| Mid-life (45–64) | 3,666 | 29% |
| Seniors (65+) | 2,383 | 19% |
Share of the 12,506 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 1,847 | 39% |
| Owned with a mortgage | 2,140 | 45% |
| Rented | 670 | 14% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 4,459 | 95% |
| Townhouses & semis | 242 | 5% |
| Flats & apartments | 4 | 0% |
Tenure and dwelling shares are of the roughly 4,708 occupied private dwellings in Hallett Cove.
- Median weekly rent
- $380
- Median monthly mortgage
- $1,700
- Average household size
- 2.6 people
- Median weekly family income
- $2,119
- Median weekly personal income
- $838
Community and culture
- Born overseas
- 4,112 (34%)
- Speaks a language other than English at home
- 1,677 (14%)
- Aboriginal and/or Torres Strait Islander
- 121 (1%)
Work and education
- Completed Year 12
- 6,306 (63%)
- Labour-force participation
- 66.4%
- Unemployment rate
- 4.6%
- Employed full-time
- 3,835
- Employed part-time
- 2,446
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 Hallett Cove
Based on 2014–2023 records, the warmest month in Hallett Cove is January (average daytime high around 27.9°C) and the coolest is July (around 14°C). The area receives roughly 711 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.9°C | 17.5°C | 29 mm |
| Feb | 26.5°C | 17°C | 29 mm |
| Mar | 24.7°C | 16°C | 20 mm |
| Apr | 21.4°C | 14°C | 51 mm |
| May | 17.3°C | 11.7°C | 86 mm |
| Jun | 14.8°C | 9.6°C | 100 mm |
| Jul | 14°C | 8.9°C | 104 mm |
| Aug | 14.7°C | 8.8°C | 95 mm |
| Sep | 17.2°C | 10.2°C | 62 mm |
| Oct | 20.5°C | 11.9°C | 52 mm |
| Nov | 22.7°C | 13.6°C | 52 mm |
| Dec | 25.6°C | 15.6°C | 31 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Hallett Cove
Where is Hallett Cove?
Hallett Cove is a suburb of South Australia, Australia.
What is the population of Hallett Cove?
At the 2021 Census, Hallett Cove had a population of about 12,512.
Is Hallett Cove an advantaged area?
Hallett Cove has an ABS SEIFA score of 1025, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 71 out of 100 — more socio-economically advantaged than about 71% of Australian suburbs.
What is the weather like in Hallett Cove?
Hallett Cove has average daytime highs of about 20.6°C and overnight lows of about 12.9°C, with roughly 711 mm of rain across the year (based on 2014–2023 climate normals).
How big is Hallett Cove?
Hallett Cove is one of the most populous suburbs in South Australia — the 11th-largest by usual resident population at the 2021 Census (about 12,512 usual residents).
Where Hallett Cove ranks
Hallett Cove appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
- Largest suburbs in South Australia#11 of 25
Nearby suburbs in South Australia
More suburb guides in South Australia
Other hand-written, cited guides — browse all guides.