Mount St John, QLD
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Less advantaged than the national average
Mount St John is more socio-economically advantaged than about 30% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 952, 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.
Mount St John at a glance
- Population (2021)
- 103
- Median age
- 42
- Median weekly household income
- $949
- SEIFA score
- 952
- Coordinates
- -19.2501, 146.7406
Mount St John demographics (2021 Census)
The figures below profile Mount St John 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 37%, 43% of homes are rented, and 18% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 0 | 0% |
| Youth (15–24) | 24 | 25% |
| Young adults (25–44) | 20 | 21% |
| Mid-life (45–64) | 35 | 37% |
| Seniors (65+) | 16 | 17% |
Share of the 95 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 13 | 57% |
| Owned with a mortgage | 0 | 0% |
| Rented | 10 | 43% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 8 | 29% |
| Townhouses & semis | 0 | 0% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 28 occupied private dwellings in Mount St John.
- Median weekly rent
- $205
- Average household size
- 1.4 people
- Median weekly family income
- $1,687
- Median weekly personal income
- $1,331
Community and culture
- Born overseas
- 16 (18%)
- Speaks a language other than English at home
- 6 (7%)
- Aboriginal and/or Torres Strait Islander
- 0 (0%)
Work and education
- Completed Year 12
- 56 (58%)
- Labour-force participation
- 71.1%
- Employed full-time
- 64
- Employed part-time
- 0
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 Mount St John
Based on 2014–2023 records, the warmest month in Mount St John is January (average daytime high around 30.7°C) and the coolest is July (around 24.3°C). The area receives roughly 1147 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 30.7°C | 24.5°C | 306 mm |
| Feb | 30.9°C | 24.3°C | 232 mm |
| Mar | 30°C | 23.7°C | 166 mm |
| Apr | 28.7°C | 21.5°C | 110 mm |
| May | 26.7°C | 18.6°C | 46 mm |
| Jun | 25°C | 16.5°C | 26 mm |
| Jul | 24.3°C | 15.2°C | 42 mm |
| Aug | 25.5°C | 15.9°C | 16 mm |
| Sep | 27.3°C | 18.4°C | 11 mm |
| Oct | 28.9°C | 21.4°C | 37 mm |
| Nov | 30.3°C | 23.3°C | 51 mm |
| Dec | 30.9°C | 24.3°C | 104 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Mount St John
Where is Mount St John?
Mount St John is a suburb of Queensland, Australia.
What is the population of Mount St John?
At the 2021 Census, Mount St John had a population of about 103.
Is Mount St John an advantaged area?
Mount St John has an ABS SEIFA score of 952, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 30 out of 100 — more socio-economically advantaged than about 30% of Australian suburbs.
What is the weather like in Mount St John?
Mount St John has average daytime highs of about 28.3°C and overnight lows of about 20.6°C, with roughly 1,147 mm of rain across the year (based on 2014–2023 climate normals).
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