71 —
Lower than 66% of suburb / locality areas.
- 2016: 77
- 2021: 71
The number of people who usually live in the area, counted on Census night.
Brentwood · Suburb / Locality
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in Brentwood is 49 years old, which is far older than the same-age average across South Australia and the nation. This sparsely populated area has a small community of just 71 people, where seniors and children make up a larger share of the population than usual.
All suburb / locality areas, 2021. The marker is Brentwood — lower than 66% of areas.
| Brentwood | 71 |
|---|---|
| 5575, SA | 2,391 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
How many people, and the typical age.
The total population is 71 people, making it smaller than about 65% of similar areas. This small community is notably older, with a typical resident aged 49.
71 —
Lower than 66% of suburb / locality areas.
The number of people who usually live in the area, counted on Census night.
49 yrs —
Older than 67% of suburb / locality areas.
Half the population is older than this age, and half younger.
How the population splits across age groups.
Seniors aged 65 and over make up 28.2% of the population, which is far above the national figure of 17.2%. This older trend is seen alongside a high number of children under 15, who make up 21.1% of the area.
28.2% —
Higher than 83% of suburb / locality areas.
Share of the population aged 65 years and over.
21.1% —
Higher than 75% of suburb / locality areas.
Share of the population aged under 15 years.
In Brentwood, the largest group is Seniors (65+) at 30%, followed by Children (0–14) (23%) and Older adults (45–64) (23%).
First Nations identity and marital status.
Aboriginal and Torres Strait Islander people represent 7.0% of the population, well above the state's 2.4%. Most residents are married (63.9%), while those in de facto relationships are much fewer than in most other areas at just 5.4%.
7.0% —
Higher than 82% of suburb / locality areas.
Share of people who identify as Aboriginal and/or Torres Strait Islander.
5.4% —
Lower than 88% of suburb / locality areas.
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
In Brentwood, Married is the majority at 64%; Never married is next at 31%.
Australian Bureau of Statistics. (2021). Demographics & Identity in Brentwood [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL40157/brentwood/topic/demographics-identity