Mount Saint Thomas, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
More advantaged than the national average
Mount Saint Thomas is more socio-economically advantaged than about 61% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1006, 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 Saint Thomas at a glance
- Population (2021)
- 1,449
- Median age
- 37
- Median weekly household income
- $1,835
- SEIFA score
- 1006
- Coordinates
- -34.4403, 150.8717
Mount Saint Thomas demographics (2021 Census)
The figures below profile Mount Saint Thomas 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 28%, 27% of homes are rented, and 22% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 282 | 19% |
| Youth (15–24) | 178 | 12% |
| Young adults (25–44) | 409 | 28% |
| Mid-life (45–64) | 375 | 26% |
| Seniors (65+) | 204 | 14% |
Share of the 1,448 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 158 | 29% |
| Owned with a mortgage | 237 | 43% |
| Rented | 150 | 27% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 507 | 92% |
| Townhouses & semis | 36 | 7% |
| Flats & apartments | 7 | 1% |
Tenure and dwelling shares are of the roughly 550 occupied private dwellings in Mount Saint Thomas.
- Median weekly rent
- $300
- Median monthly mortgage
- $2,167
- Average household size
- 2.6 people
- Median weekly family income
- $2,303
- Median weekly personal income
- $819
Community and culture
- Born overseas
- 313 (22%)
- Speaks a language other than English at home
- 241 (17%)
- Aboriginal and/or Torres Strait Islander
- 44 (3%)
Work and education
- Completed Year 12
- 606 (54%)
- Labour-force participation
- 62%
- Unemployment rate
- 4.6%
- Employed full-time
- 410
- Employed part-time
- 217
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 Saint Thomas
Based on 2014–2023 records, the warmest month in Mount Saint Thomas is January (average daytime high around 27.3°C) and the coolest is July (around 16.5°C). The area receives roughly 1157 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.3°C | 18.3°C | 114 mm |
| Feb | 26°C | 17.8°C | 144 mm |
| Mar | 24.5°C | 16.8°C | 177 mm |
| Apr | 22.2°C | 14°C | 87 mm |
| May | 19.2°C | 11°C | 54 mm |
| Jun | 16.5°C | 9.1°C | 69 mm |
| Jul | 16.5°C | 8°C | 84 mm |
| Aug | 17.4°C | 8.4°C | 73 mm |
| Sep | 20.2°C | 10.2°C | 53 mm |
| Oct | 22.6°C | 12.6°C | 100 mm |
| Nov | 23.9°C | 14.3°C | 99 mm |
| Dec | 26.1°C | 16.5°C | 103 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Mount Saint Thomas
Where is Mount Saint Thomas?
Mount Saint Thomas is a suburb of New South Wales, Australia.
What is the population of Mount Saint Thomas?
At the 2021 Census, Mount Saint Thomas had a population of about 1,449.
Is Mount Saint Thomas an advantaged area?
Mount Saint Thomas has an ABS SEIFA score of 1006, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 61 out of 100 — more socio-economically advantaged than about 61% of Australian suburbs.
What is the weather like in Mount Saint Thomas?
Mount Saint Thomas has average daytime highs of about 21.9°C and overnight lows of about 13.1°C, with roughly 1,157 mm of rain across the year (based on 2014–2023 climate normals).
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