23,665 ▲ +3.0%
Higher than 94% of statistical area 2 (sa2) areas.
- 2011: 22,965
- 2016: 23,153
- 2021: 23,665
The number of people who usually live in the area, counted on Census night.
Thornlie · Statistical Area 2 (SA2)
Demographics & Identity in Thornlie
Who lives here — how many people, how old they are, and how communities identify.
A population of 23,665 people makes Thornlie one of the largest areas of its kind in the region. The community is balanced across age groups, with a typical resident being 38 years old. While the area has grown slightly since 2011, its overall age profile remains very similar to the figures seen across Western Australia and the rest of the country.
23,665
▲ +3.0%
- 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 Thornlie — higher than 94% of areas.
| Thornlie | 23,665 |
|---|---|
| 6108, WA | 23,665 |
| Western Australia | 2,660,026 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
Thornlie is one of the most populous areas at this level, with its total population growing by about 700 people since 2011. The typical resident is now 38, which is 2 years older than in 2011.
38 yrs ▲ +5.6%
Younger than 57% of statistical area 2 (sa2) areas.
- 2011: 36 yrs
- 2016: 37 yrs
- 2021: 38 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Children under 15 make up 19.5% of the population, which is higher than most areas. Meanwhile, the proportion of people aged 65 and over has risen by 5.6 percentage points since 2011 to reach 16.9%.
16.9% ▲ +48.9%
Lower than 53% of statistical area 2 (sa2) areas.
- 2011: 11.4%
- 2016: 14.1%
- 2021: 16.9%
Share of the population aged 65 years and over.
19.5% ▼ -2.6%
Higher than 67% of statistical area 2 (sa2) areas.
- 2011: 20.0%
- 2016: 19.2%
- 2021: 19.5%
Share of the population aged under 15 years.
Age structure
View on map →Thornlie splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (25%), with Children (0–14) at 19%.
Identity & relationships
First Nations identity and marital status.
About 2.4% of residents identify as Aboriginal and Torres Strait Islander, which is about the same as the state average. People in de facto relationships make up 8.9% of the population, a figure that is much lower than most other areas.
2.4% ▲ +18.0%
Higher than 54% of statistical area 2 (sa2) areas.
- 2011: 2.0%
- 2016: 1.9%
- 2021: 2.4%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
8.9% ▼ -3.0%
Lower than 79% of statistical area 2 (sa2) areas.
- 2011: 9.1%
- 2016: 8.3%
- 2021: 8.9%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Thornlie, Married is the majority at 51%; Never married is next at 34%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Thornlie
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Thornlie [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/506041137/thornlie/topic/demographics-identity