2,473 ▲ +2.9%
Lower than 91% of statistical area 2 (sa2) areas.
- 2011: 2,403
- 2016: 2,514
- 2021: 2,473
The number of people who usually live in the area, counted on Census night.
One Tree Hill · Statistical Area 2 (SA2)
Demographics & Identity in One Tree Hill
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in One Tree Hill is 47 years old, which is far older than the national figure of 38. This small community of 2,473 people has grown slightly since 2011 and is now noticeably older than the South Australian average.
2,473
▲ +2.9%
- 1–1: 40 areas
- 1–2: 0 areas
- 2–3: 0 areas
- 3–4: 12 areas
- 4–6: 6 areas
- 6–9: 9 areas
- 9–13: 10 areas
- 13–19: 7 areas
- 19–27: 17 areas
- 27–39: 6 areas
- 39–56: 5 areas
- 56–81: 4 areas
- 81–116: 1 area
- 116–168: 5 areas
- 168–242: 3 areas
- 242–349: 4 areas
- 349–503: 2 areas
- 503–725: 9 areas
- 725–1,045: 3 areas
- 1,045–1,506: 5 areas
- 1,506–2,171: 31 areas
- 2,171–3,130: 83 areas
- 3,130–4,513: 217 areas
- 4,513–6,507: 318 areas
- 6,507–9,382: 402 areas
- 9,382–13,526: 546 areas
- 13,526–19,501: 496 areas
- 19,501–28,116: 231 areas
All statistical area 2 (sa2) areas, 2021. The marker is One Tree Hill — lower than 91% of areas.
| One Tree Hill | 2,473 |
|---|---|
| 5114, SA | 36,847 |
| South Australia | 1,781,516 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The population grew by 2.9% since 2011, adding about 70 people. The typical age has risen to 47, which is much higher than most similar areas.
47 yrs ▲ +6.8%
Older than 84% of statistical area 2 (sa2) areas.
- 2011: 44 yrs
- 2016: 47 yrs
- 2021: 47 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Older adults and seniors make up over half the population, with the 65 and over group rising by 7.1 points since 2011. This contrasts with children under 15, who make up 16.3% of the area, a figure that has fallen since 2011.
18.4% ▲ +62.6%
Higher than 56% of statistical area 2 (sa2) areas.
- 2011: 11.3%
- 2016: 15.8%
- 2021: 18.4%
Share of the population aged 65 years and over.
16.3% ▼ -8.7%
Lower than 68% of statistical area 2 (sa2) areas.
- 2011: 17.9%
- 2016: 15.2%
- 2021: 16.3%
Share of the population aged under 15 years.
Age structure
View on map →In One Tree Hill, the largest group is Older adults (45–64) at 34%, followed by Seniors (65+) (18%) and Young adults (25–44) (18%).
Identity & relationships
First Nations identity and marital status.
Most residents are married (61.0%), while those in de facto relationships make up 9.9%, which is a little below the national figure. People of Aboriginal and Torres Strait Islander descent represent 1.2% of the population.
1.2% ▲ +213.6%
Lower than 68% of statistical area 2 (sa2) areas.
- 2011: 0.4%
- 2016: 0.8%
- 2021: 1.2%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
9.9% ▲ +32.0%
Lower than 73% of statistical area 2 (sa2) areas.
- 2011: 7.5%
- 2016: 8.4%
- 2021: 9.9%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In One Tree Hill, Married is the majority at 61%; Never married is next at 28%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for One Tree Hill
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in One Tree Hill [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/402021033/one-tree-hill/topic/demographics-identity