Mount Martha, VIC
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Mount Martha is more socio-economically advantaged than about 89% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1068, 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 Martha at a glance
- Population (2021)
- 19,846
- Median age
- 46
- Median weekly household income
- $2,097
- SEIFA score
- 1068
- Coordinates
- -38.2738, 145.0322
Mount Martha demographics (2021 Census)
The figures below profile Mount Martha 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 28%, 12% of homes are rented, and 21% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 3,815 | 19% |
| Youth (15–24) | 2,272 | 11% |
| Young adults (25–44) | 3,390 | 17% |
| Mid-life (45–64) | 5,646 | 28% |
| Seniors (65+) | 4,720 | 24% |
Share of the 19,843 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 2,968 | 42% |
| Owned with a mortgage | 2,945 | 42% |
| Rented | 848 | 12% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 5,916 | 84% |
| Townhouses & semis | 1,084 | 15% |
| Flats & apartments | 20 | 0% |
Tenure and dwelling shares are of the roughly 7,023 occupied private dwellings in Mount Martha.
- Median weekly rent
- $496
- Median monthly mortgage
- $2,167
- Average household size
- 2.7 people
- Median weekly family income
- $2,481
- Median weekly personal income
- $846
Community and culture
- Born overseas
- 3,999 (21%)
- Speaks a language other than English at home
- 972 (5%)
- Aboriginal and/or Torres Strait Islander
- 119 (1%)
Work and education
- Completed Year 12
- 9,476 (63%)
- Labour-force participation
- 60.5%
- Unemployment rate
- 2.8%
- Employed full-time
- 5,055
- Employed part-time
- 3,679
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 Martha
Based on 2014–2023 records, the warmest month in Mount Martha is January (average daytime high around 24.9°C) and the coolest is July (around 12.8°C). The area receives roughly 802 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 24.9°C | 16°C | 56 mm |
| Feb | 23.9°C | 15.6°C | 39 mm |
| Mar | 22.4°C | 15°C | 47 mm |
| Apr | 19.1°C | 12.8°C | 63 mm |
| May | 15.8°C | 10.8°C | 80 mm |
| Jun | 13.4°C | 8.9°C | 72 mm |
| Jul | 12.8°C | 8.3°C | 65 mm |
| Aug | 13.4°C | 8.3°C | 78 mm |
| Sep | 15.6°C | 9.3°C | 83 mm |
| Oct | 18.4°C | 10.6°C | 85 mm |
| Nov | 20.2°C | 12.3°C | 75 mm |
| Dec | 22.7°C | 13.9°C | 59 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Mount Martha
Where is Mount Martha?
Mount Martha is a suburb of Victoria, Australia.
What is the population of Mount Martha?
At the 2021 Census, Mount Martha had a population of about 19,846.
Is Mount Martha an advantaged area?
Mount Martha has an ABS SEIFA score of 1068, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 89 out of 100 — more socio-economically advantaged than about 89% of Australian suburbs.
What is the weather like in Mount Martha?
Mount Martha has average daytime highs of about 18.5°C and overnight lows of about 11.8°C, with roughly 802 mm of rain across the year (based on 2014–2023 climate normals).
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