33,635 ▲ +1.5%
Higher than 87% of postcode areas.
- 2011: 33,148
- 2016: 32,934
- 2021: 33,635
The number of people who usually live in the area, counted on Census night.
5159, SA · Postcode
Demographics & Identity in 5159, SA
Who lives here — how many people, how old they are, and how communities identify.
More than 33,000 people live in postcode 5159, making it one of the largest areas at its level. The community is noticeably older than the national average, with a typical resident aged 43. This ageing trend has grown steadily over the last decade.
33,635
▲ +1.5%
- 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 5159, SA — higher than 87% of areas.
| 5159, SA | 33,635 |
|---|---|
| Onkaparinga | 175,204 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The population grew by 1.5% since 2011, adding about 487 people to reach a total of 33,635. Residents are typically 43, which is a little older than the South Australian figure and four years older than they were in 2011.
43 yrs ▲ +10.3%
Older than 52% of postcode areas.
- 2011: 39 yrs
- 2016: 41 yrs
- 2021: 43 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 20.8% of the population, a figure well above the national average that has risen by 8.8 points since 2011. Meanwhile, children under 15 account for 17.1%, which is a little below the Australian average.
20.8% ▲ +73.0%
Higher than 57% of postcode areas.
- 2011: 12.0%
- 2016: 16.8%
- 2021: 20.8%
Share of the population aged 65 years and over.
17.1% ▼ -9.1%
Lower than 52% of postcode areas.
- 2011: 18.9%
- 2016: 17.7%
- 2021: 17.1%
Share of the population aged under 15 years.
Age structure
View on map →5159, SA splits fairly evenly between Older adults (45–64) (27%) and Young adults (25–44) (24%), with Seniors (65+) at 21%.
Identity & relationships
First Nations identity and marital status.
A small number of people identify as Aboriginal or Torres Strait Islander at 0.9%, which is much lower than most areas. Most residents are married (53.9%), while those in de facto relationships make up 10.5%, a figure that rose 2.5 points since 2011.
0.9% ▲ +119.2%
Lower than 75% of postcode areas.
- 2011: 0.4%
- 2016: 0.8%
- 2021: 0.9%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
10.5% ▲ +31.3%
Lower than 72% of postcode areas.
- 2011: 8.0%
- 2016: 9.4%
- 2021: 10.5%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In 5159, SA, Married is the majority at 54%; Never married is next at 30%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 5159, SA
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 5159, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5159/5159-sa/topic/demographics-identity