Thornlea, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Around the national middle
Thornlea is more socio-economically advantaged than about 46% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 981, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Thornlea at a glance
- Population (2021)
- 46
- Median age
- 37
- Median weekly household income
- $1,968
- SEIFA score
- 981
- Coordinates
- -37.4222, 140.1724
Thornlea demographics (2021 Census)
The figures below profile Thornlea using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is children (0–14) at 29%, 0% of homes are rented, and 6% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 14 | 29% |
| Youth (15–24) | 4 | 8% |
| Young adults (25–44) | 14 | 29% |
| Mid-life (45–64) | 13 | 27% |
| Seniors (65+) | 3 | 6% |
Share of the 48 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 11 | 58% |
| Owned with a mortgage | 5 | 26% |
| Rented | 0 | 0% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 17 | 100% |
| Townhouses & semis | 0 | 0% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 17 occupied private dwellings in Thornlea.
- Median weekly rent
- $180
- Median monthly mortgage
- $975
- Average household size
- 2.7 people
- Median weekly family income
- $1,968
- Median weekly personal income
- $1,050
Community and culture
- Born overseas
- 3 (6%)
- Speaks a language other than English at home
- 0 (0%)
- Aboriginal and/or Torres Strait Islander
- 0 (0%)
Work and education
- Completed Year 12
- 20 (57%)
- Labour-force participation
- 86.1%
- Employed full-time
- 20
- Employed part-time
- 6
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Common questions about Thornlea
Where is Thornlea?
Thornlea is a suburb of South Australia, Australia.
What is the population of Thornlea?
At the 2021 Census, Thornlea had a population of about 46.
Is Thornlea an advantaged area?
Thornlea has an ABS SEIFA score of 981, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 46 out of 100 — more socio-economically advantaged than about 46% of Australian suburbs.
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