Thornlands, QLD
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Thornlands is more socio-economically advantaged than about 82% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1047, 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.
Thornlands at a glance
- Population (2021)
- 19,263
- Median age
- 36
- Median weekly household income
- $2,218
- SEIFA score
- 1047
- Coordinates
- -27.5684, 153.2625
Thornlands demographics (2021 Census)
The figures below profile Thornlands 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 young adults (25–44) at 26%, 26% of homes are rented, and 26% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 4,135 | 21% |
| Youth (15–24) | 2,673 | 14% |
| Young adults (25–44) | 4,946 | 26% |
| Mid-life (45–64) | 4,823 | 25% |
| Seniors (65+) | 2,697 | 14% |
Share of the 19,274 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 1,576 | 25% |
| Owned with a mortgage | 2,982 | 47% |
| Rented | 1,660 | 26% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 5,593 | 87% |
| Townhouses & semis | 743 | 12% |
| Flats & apartments | 63 | 1% |
Tenure and dwelling shares are of the roughly 6,407 occupied private dwellings in Thornlands.
- Median weekly rent
- $470
- Median monthly mortgage
- $2,167
- Average household size
- 2.9 people
- Median weekly family income
- $2,378
- Median weekly personal income
- $920
Community and culture
- Born overseas
- 4,932 (26%)
- Speaks a language other than English at home
- 1,717 (9%)
- Aboriginal and/or Torres Strait Islander
- 457 (2%)
Work and education
- Completed Year 12
- 8,967 (63%)
- Labour-force participation
- 70.3%
- Unemployment rate
- 3.7%
- Employed full-time
- 6,157
- Employed part-time
- 3,167
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.
Weather and climate in Thornlands
Based on 2014–2023 records, the warmest month in Thornlands is January (average daytime high around 27.6°C) and the coolest is July (around 20°C). The area receives roughly 981 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.6°C | 22°C | 105 mm |
| Feb | 27.4°C | 21.7°C | 163 mm |
| Mar | 26.9°C | 21.1°C | 160 mm |
| Apr | 24.7°C | 18°C | 51 mm |
| May | 22.4°C | 15.1°C | 73 mm |
| Jun | 20.3°C | 12.7°C | 52 mm |
| Jul | 20°C | 11.6°C | 36 mm |
| Aug | 20.9°C | 12.2°C | 36 mm |
| Sep | 22.5°C | 14.6°C | 35 mm |
| Oct | 24.2°C | 17.2°C | 100 mm |
| Nov | 25.8°C | 19.3°C | 65 mm |
| Dec | 27.1°C | 21°C | 105 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Thornlands
Where is Thornlands?
Thornlands is a suburb of Queensland, Australia.
What is the population of Thornlands?
At the 2021 Census, Thornlands had a population of about 19,263.
Is Thornlands an advantaged area?
Thornlands has an ABS SEIFA score of 1047, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 82 out of 100 — more socio-economically advantaged than about 82% of Australian suburbs.
What is the weather like in Thornlands?
Thornlands has average daytime highs of about 24.2°C and overnight lows of about 17.2°C, with roughly 981 mm of rain across the year (based on 2014–2023 climate normals).
How big is Thornlands?
Thornlands is one of the most populous suburbs in Queensland — the 18th-largest by usual resident population at the 2021 Census (about 19,263 usual residents).
Where Thornlands ranks
Thornlands appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
- Largest suburbs in Queensland#18 of 25
Nearby suburbs in Queensland
More suburb guides in Queensland
Other hand-written, cited guides — browse all guides.