1,844 ▼ -4.7%
Lower than 61% of postcode areas.
- 2011: 1,934
- 2016: 1,879
- 2021: 1,844
The number of people who usually live in the area, counted on Census night.
5166, SA · Postcode
Demographics & Identity in 5166, SA
Who lives here — how many people, how old they are, and how communities identify.
A noticeably older population than the national average defines postcode 5166, where the typical resident is now 44. This shift is driven by a growing number of seniors and a shrinking number of children, contributing to a total population of 1,844 people.
1,844
▼ -4.7%
- 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 5166, SA — lower than 61% of areas.
| 5166, SA | 1,844 |
|---|---|
| Onkaparinga | 175,204 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The typical person here is 44, which is noticeably older than the South Australian figure of 41 and the national figure of 38. Since 2011, the total population has shrank by 4.7%, losing about 90 people.
44 yrs ▲ +10.0%
Older than 57% of postcode areas.
- 2011: 40 yrs
- 2016: 43 yrs
- 2021: 44 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 24.3% of the area, a figure well above the national 17.2%. This trend is mirrored by a drop in children under 15, who now make up 14.8% of the population, which is well below the Australian average.
24.3% ▲ +54.1%
Higher than 73% of postcode areas.
- 2011: 15.8%
- 2016: 21.9%
- 2021: 24.3%
Share of the population aged 65 years and over.
14.8% ▼ -20.0%
Lower than 75% of postcode areas.
- 2011: 18.5%
- 2016: 16.2%
- 2021: 14.8%
Share of the population aged under 15 years.
Age structure
View on map →5166, SA splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (25%), with Seniors (65+) at 24%.
Identity & relationships
First Nations identity and marital status.
Aboriginal and Torres Strait Islander people make up 4.2% of the population, which is higher than most similar areas. About 12.8% of residents are in a de facto relationship, a figure that has barely changed since 2011.
4.2% ▲ +26.2%
Higher than 71% of postcode areas.
- 2011: 3.3%
- 2016: 2.4%
- 2021: 4.2%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
12.8% ▼ -5.1%
Higher than 56% of postcode areas.
- 2011: 13.5%
- 2016: 13.9%
- 2021: 12.8%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →5166, SA splits fairly evenly between Never married (40%) and Married (37%), with Divorced at 14%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 5166, SA
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 5166, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5166/5166-sa/topic/demographics-identity