6,265 ▲ +9.4%
Higher than 59% of postcode areas.
- 2011: 5,727
- 2016: 5,923
- 2021: 6,265
The number of people who usually live in the area, counted on Census night.
5171, SA · Postcode
Demographics & Identity in 5171, SA
Who lives here — how many people, how old they are, and how communities identify.
A growing older population marks the shift in postcode 5171 since 2011, with the typical resident now 49 years old. This area is far older than the national figure, and it has seen a steady increase in its total population over the last decade.
6,265
▲ +9.4%
- 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 5171, SA — higher than 59% of areas.
| 5171, SA | 6,265 |
|---|---|
| Onkaparinga | 175,204 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The population grew by 9.4% since 2011, adding about 538 people to reach a total of 6,265. Residents are far older than those in most other areas, with the typical age rising by 6 years since 2011.
49 yrs ▲ +14.0%
Older than 77% of postcode areas.
- 2011: 43 yrs
- 2016: 47 yrs
- 2021: 49 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 27.1% of the population, which is well above the national figure. This rise in older residents helps explain why the share of children under 15 has fallen to 16.3%.
27.1% ▲ +35.1%
Higher than 83% of postcode areas.
- 2011: 20.1%
- 2016: 24.1%
- 2021: 27.1%
Share of the population aged 65 years and over.
16.3% ▼ -15.1%
Lower than 62% of postcode areas.
- 2011: 19.2%
- 2016: 16.9%
- 2021: 16.3%
Share of the population aged under 15 years.
Age structure
View on map →5171, SA splits fairly evenly between Older adults (45–64) (29%) and Seniors (65+) (27%), with Young adults (25–44) at 18%.
Identity & relationships
First Nations identity and marital status.
Most residents are married at 57.4%, while those in de facto relationships make up 9.1%, which is much lower than most areas. People of Aboriginal and Torres Strait Islander descent represent 0.8% of the population, a figure that has barely changed since 2011.
0.8% ▲ +57.7%
Lower than 78% of postcode areas.
- 2011: 0.5%
- 2016: 0.8%
- 2021: 0.8%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
9.1% ▲ +9.7%
Lower than 82% of postcode areas.
- 2011: 8.3%
- 2016: 8.4%
- 2021: 9.1%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In 5171, SA, Married is the majority at 57%; Never married is next at 24%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 5171, SA
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 5171, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5171/5171-sa/topic/demographics-identity