Tea Tree Gully, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
More advantaged than the national average
Tea Tree Gully is more socio-economically advantaged than about 64% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1012, 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.
Tea Tree Gully at a glance
- Population (2021)
- 3,499
- Median age
- 44
- Median weekly household income
- $1,607
- SEIFA score
- 1012
- Coordinates
- -34.8234, 138.7354
Tea Tree Gully demographics (2021 Census)
The figures below profile Tea Tree Gully 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 mid-life (45–64) at 26%, 14% of homes are rented, and 21% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 548 | 16% |
| Youth (15–24) | 405 | 12% |
| Young adults (25–44) | 832 | 24% |
| Mid-life (45–64) | 906 | 26% |
| Seniors (65+) | 808 | 23% |
Share of the 3,499 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 554 | 41% |
| Owned with a mortgage | 595 | 44% |
| Rented | 190 | 14% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,226 | 90% |
| Townhouses & semis | 46 | 3% |
| Flats & apartments | 89 | 7% |
Tenure and dwelling shares are of the roughly 1,365 occupied private dwellings in Tea Tree Gully.
- Median weekly rent
- $325
- Median monthly mortgage
- $1,600
- Average household size
- 2.5 people
- Median weekly family income
- $2,024
- Median weekly personal income
- $799
Community and culture
- Born overseas
- 711 (21%)
- Speaks a language other than English at home
- 227 (7%)
- Aboriginal and/or Torres Strait Islander
- 38 (1%)
Work and education
- Completed Year 12
- 1,546 (55%)
- Labour-force participation
- 62.3%
- Unemployment rate
- 4.4%
- Employed full-time
- 1,024
- Employed part-time
- 618
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 Tea Tree Gully
Based on 2014–2023 records, the warmest month in Tea Tree Gully is January (average daytime high around 28.9°C) and the coolest is July (around 13°C). The area receives roughly 850 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 28.9°C | 16.1°C | 31 mm |
| Feb | 27.5°C | 15.4°C | 28 mm |
| Mar | 25.2°C | 14.3°C | 23 mm |
| Apr | 21.2°C | 12°C | 55 mm |
| May | 16.4°C | 9.4°C | 90 mm |
| Jun | 13.7°C | 7.3°C | 112 mm |
| Jul | 13°C | 6.4°C | 132 mm |
| Aug | 13.8°C | 6.6°C | 141 mm |
| Sep | 16.6°C | 8°C | 87 mm |
| Oct | 20.6°C | 10.1°C | 63 mm |
| Nov | 23°C | 11.7°C | 58 mm |
| Dec | 26.5°C | 13.9°C | 30 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Tea Tree Gully
Where is Tea Tree Gully?
Tea Tree Gully is a suburb of South Australia, Australia.
What is the population of Tea Tree Gully?
At the 2021 Census, Tea Tree Gully had a population of about 3,499.
Is Tea Tree Gully an advantaged area?
Tea Tree Gully has an ABS SEIFA score of 1012, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 64 out of 100 — more socio-economically advantaged than about 64% of Australian suburbs.
What is the weather like in Tea Tree Gully?
Tea Tree Gully has average daytime highs of about 20.5°C and overnight lows of about 10.9°C, with roughly 850 mm of rain across the year (based on 2014–2023 climate normals).
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