10,143 ▲ +19.0%
Higher than 67% of postcode areas.
- 2011: 8,521
- 2016: 9,248
- 2021: 10,143
The number of people who usually live in the area, counted on Census night.
5255, SA · Postcode
Demographics & Identity in 5255, SA
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in postcode 5255 is far older than the national figure, with the average age sitting at 47 years. This area has seen a steady increase in its population, growing by 19% since 2011 to reach 10,143 people. The local profile is now defined by a significant number of seniors and older adults.
10,143
▲ +19.0%
- 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 5255, SA — higher than 67% of areas.
| 5255, SA | 10,143 |
|---|---|
| Alexandrina | 28,730 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The population grew by 1,622 people between 2011 and 2021, making it larger than about 68% of similar areas. This growth happened as the community aged, with the typical resident now five years older than they were in 2011.
47 yrs ▲ +11.9%
Older than 71% of postcode areas.
- 2011: 42 yrs
- 2016: 45 yrs
- 2021: 47 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 24.6% of the population, which is well above both the South Australian and national figures. This contributed to the area becoming noticeably older than the state average, while the share of children under 15 fell slightly since 2011.
24.6% ▲ +42.7%
Higher than 74% of postcode areas.
- 2011: 17.3%
- 2016: 21.9%
- 2021: 24.6%
Share of the population aged 65 years and over.
17.1% ▼ -11.0%
Lower than 52% of postcode areas.
- 2011: 19.3%
- 2016: 18.6%
- 2021: 17.1%
Share of the population aged under 15 years.
Age structure
View on map →5255, SA splits fairly evenly between Older adults (45–64) (28%) and Seniors (65+) (25%), with Young adults (25–44) at 19%.
Identity & relationships
First Nations identity and marital status.
Most residents are married, making up 52% of the population. Those in de facto relationships account for 10.7%, a figure lower than most areas, while the Aboriginal and Torres Strait Islander population rose slightly to 1.8%.
1.8% ▲ +83.2%
Lower than 57% of postcode areas.
- 2011: 1.0%
- 2016: 1.6%
- 2021: 1.8%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
10.7% ▲ +5.2%
Lower than 70% of postcode areas.
- 2011: 10.2%
- 2016: 10.2%
- 2021: 10.7%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In 5255, SA, Married is the majority at 52%; Never married is next at 29%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 5255, SA
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 5255, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5255/5255-sa/topic/demographics-identity