2,117 ▲ +8.3%
Higher than 79% of suburb / locality areas.
- 2011: 1,954
- 2016: 1,957
- 2021: 2,117
The number of people who usually live in the area, counted on Census night.
Seacliff · Suburb / Locality
Demographics & Identity in Seacliff
Who lives here — how many people, how old they are, and how communities identify.
Over half of the 2,117 people in Seacliff are married, making it a stable residential area. It is far older than the national average, with the typical resident being 46 years old. This aging trend is highlighted by a high proportion of seniors living in the area.
2,117
▲ +8.3%
- 1–1: 689 areas
- 1–2: 0 areas
- 2–3: 119 areas
- 3–5: 108 areas
- 5–7: 243 areas
- 7–11: 241 areas
- 11–16: 514 areas
- 16–24: 579 areas
- 24–36: 898 areas
- 36–53: 1059 areas
- 53–79: 1168 areas
- 79–117: 1203 areas
- 117–174: 1171 areas
- 174–258: 1010 areas
- 258–384: 856 areas
- 384–571: 670 areas
- 571–850: 616 areas
- 850–1,263: 567 areas
- 1,263–1,879: 520 areas
- 1,879–2,794: 590 areas
- 2,794–4,154: 679 areas
- 4,154–6,177: 585 areas
- 6,177–9,186: 528 areas
- 9,186–13,659: 405 areas
- 13,659–20,311: 195 areas
- 20,311–30,202: 96 areas
- 30,202–44,910: 33 areas
- 44,910–66,781: 10 areas
All suburb / locality areas, 2021. The marker is Seacliff — higher than 79% of areas.
| Seacliff | 2,117 |
|---|---|
| 5049, SA | 10,380 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
Seacliff is larger than about 81% of similar areas. The typical resident is 46, which is noticeably older than the South Australian average and far older than the national figure.
46 yrs ▲ +9.5%
Older than 54% of suburb / locality areas.
- 2011: 42 yrs
- 2016: 44 yrs
- 2021: 46 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 22.6% of the population, a figure well above the national average. Children under 15 account for 16.1%, which is a little below the Australian figure of 18.2%.
22.6% ▲ +55.4%
Higher than 66% of suburb / locality areas.
- 2011: 14.5%
- 2016: 18.3%
- 2021: 22.6%
Share of the population aged 65 years and over.
16.1% ▲ +10.1%
Lower than 58% of suburb / locality areas.
- 2011: 14.6%
- 2016: 14.9%
- 2021: 16.1%
Share of the population aged under 15 years.
Age structure
View on map →In Seacliff, the largest group is Older adults (45–64) at 29%, followed by Young adults (25–44) (23%) and Seniors (65+) (23%).
Identity & relationships
First Nations identity and marital status.
Aboriginal and Torres Strait Islander people make up 0.6% of the population, which is a little below the state and national figures. People in de facto relationships account for 12.8%, slightly above the national figure of 11.5%.
0.6% ▼ -7.7%
Lower than 65% of suburb / locality areas.
- 2011: 0.6%
- 2016: 0.5%
- 2021: 0.6%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
12.8% ▲ +34.8%
Higher than 55% of suburb / locality areas.
- 2011: 9.5%
- 2016: 10.3%
- 2021: 12.8%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Seacliff, Married is the majority at 52%; Never married is next at 31%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Seacliff
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Seacliff [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL41311/seacliff/topic/demographics-identity