Cook Postcode

South Australia

Very Remote Top 10% SEIFA Above SA income
5701
Postcode for Cook, SA
Phone area code: 08 · 517 km from Adelaide · Pop. 2,965
2,965
Population
42
Median Age
$2,269
Household Income/wk
$440
Median Rent/wk
10/10
SEIFA Advantage
1.6
Area (km²)

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Cook ranks: household income is in the top 10% of SA suburbs; rents are among the top 10% in SA; SEIFA decile 10 puts it in the top 20% of Australia for socio-economic advantage.

How Cook Compares

Cook vs the SA average and the national average (2021 Census, population-weighted).

MetricCookSA avgAU avg
Household income/wk $2,269 +SA $1,545 $1,836
Rent/wk $440 +SA $308 $390
Mortgage/month $2,167 +SA $1,558 $1,958
Median age 42 45.0 45.0
SEIFA decile 10/10 +SA 5.0/10 6.0/10
Unemployment 4.4% -SA 6.0% 5.0%

Green pill = at least 10% above the SA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Cook is a very remote community in South Australia, with postcode 5701. It lies roughly 517 km from Adelaide, classified by the ABS as very remote Australia. The area is administered by Unincorporated ACT.

According to the 2021 Census, Cook has a population of 2,965 with a median age of 42. The median weekly household income is $2,269, above the SA average. The unemployment rate is 4.4%, lower than the SA average. The Indigenous population is 26 (0.9% of residents).

Housing in Cook includes a median weekly rent of $440, median monthly mortgage repayment of $2,167, with 1,237 total dwellings. These housing costs sit above the SA average. Owner-occupied dwellings (owned or mortgaged) make up 75.9% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Cook scores in decile 10 out of 10, which is well above the national average.

Cook is part of the Outback - North and East statistical area in South Australia.

Cook Details

Postcode5701
StateSouth Australia (SA)
Phone Area Code08
Population (2021)2,965
Median Age42 years
Median Household Income (Census 2021)$2,269/week
Median Personal Income (Census 2021)$1,288/week
Median Weekly Rent (Census 2021)$440
Median Monthly Mortgage (Census 2021)$2,167
Average Household Size2.3 persons
Area1.6 km²
Population Density1873/km²
Total Dwellings1,237
Australian Citizens89.1%
Indigenous Population26 (0.9%)
Unemployment Rate4.4%
SEIFA IRSAD Decile10/10 (well above average)
Latitude-30.3183
Longitude139.329
Distance from Adelaide517 km
Region (SA4)South Australia - Outback
Area (SA3)Outback - North and East
Local GovernmentUnincorporated ACT
Federal ElectorateGrey

Age Profile

0–14 (17.3%) 15–24 (8.9%) 25–44 (27.6%) 45–64 (26.0%) 65+ (20.0%)
Show counts
0–14 years512 (17.3%)
15–24 years263 (8.9%)
25–44 years817 (27.6%)
45–64 years772 (26.0%)
65+ years592 (20.0%)

Housing Tenure

Owned outright (41.0%) Mortgaged (34.9%) Rented (24.1%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 10 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Asthma318 (10.7%)
Arthritis312 (10.5%)
Cancer122 (4.1%)
Heart Disease109 (3.7%)
Diabetes95 (3.2%)
Lung Condition44 (1.5%)
Dementia16 (0.5%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle56 (4.6%)
1 vehicle561 (45.9%)
2 vehicles465 (38.1%)
3+ vehicles139 (11.4%)

Suburbs Near Cook

Same Postcode (5701)

More Cook Data

Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.