10,286 ▲ +5.2%
Higher than 68% of postcode areas.
- 2011: 9,781
- 2016: 10,154
- 2021: 10,286
The number of people who usually live in the area, counted on Census night.
5161, SA · Postcode
Demographics & Identity in 5161, SA
Who lives here — how many people, how old they are, and how communities identify.
Over 10,000 people live in postcode 5161, where the population has grown by about 500 people since 2011. This is a balanced community with a typical age of 40, though it is becoming notably older as the number of seniors has risen significantly in recent years.
10,286
▲ +5.2%
- 1–2: 1 area
- 2–2: 0 areas
- 2–4: 0 areas
- 4–5: 2 areas
- 5–8: 3 areas
- 8–12: 2 areas
- 12–19: 2 areas
- 19–29: 12 areas
- 29–44: 19 areas
- 44–67: 35 areas
- 67–102: 30 areas
- 102–155: 70 areas
- 155–237: 97 areas
- 237–360: 129 areas
- 360–549: 158 areas
- 549–836: 168 areas
- 836–1,273: 181 areas
- 1,273–1,938: 179 areas
- 1,938–2,951: 157 areas
- 2,951–4,493: 179 areas
- 4,493–6,842: 176 areas
- 6,842–10,418: 210 areas
- 10,418–15,865: 268 areas
- 15,865–24,158: 254 areas
- 24,158–36,786: 182 areas
- 36,786–56,016: 93 areas
- 56,016–85,299: 28 areas
- 85,299–129,888: 8 areas
All postcode areas, 2021. The marker is 5161, SA — higher than 68% of areas.
| 5161, SA | 10,286 |
|---|---|
| Onkaparinga | 175,204 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The population reached 10,286 people in 2021, which is larger than about 68% of similar areas. The typical resident is now 40, which is two years older than in 2011.
40 yrs ▲ +5.3%
Younger than 64% of postcode areas.
- 2011: 38 yrs
- 2016: 39 yrs
- 2021: 40 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Seniors aged 65 and over make up 20.9% of the population, a figure that rose by 5.7 points since 2011 and is well above the national figure. Children under 15 make up 17.0%, which is about the same as the South Australian average.
20.9% ▲ +37.0%
Higher than 58% of postcode areas.
- 2011: 15.3%
- 2016: 18.6%
- 2021: 20.9%
Share of the population aged 65 years and over.
17.0% ▼ -5.7%
Lower than 54% of postcode areas.
- 2011: 18.0%
- 2016: 17.5%
- 2021: 17.0%
Share of the population aged under 15 years.
Age structure
View on map →5161, SA splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (24%), with Seniors (65+) at 21%.
Identity & relationships
First Nations identity and marital status.
About 1.3% of residents are Aboriginal or Torres Strait Islander, which is lower than most areas. Those in de facto relationships make up 12.6% of the population, a little above the national figure.
1.3% ▲ +19.8%
Lower than 66% of postcode areas.
- 2011: 1.1%
- 2016: 1.3%
- 2021: 1.3%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
12.6% ▲ +16.7%
Higher than 52% of postcode areas.
- 2011: 10.8%
- 2016: 11.1%
- 2021: 12.6%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In 5161, SA, the largest group is Married at 44%, followed by Never married (35%) and Divorced (11%).
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 5161, SA
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 5161, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5161/5161-sa/topic/demographics-identity