Mount Martha, VIC
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Mount Martha is a seaside suburb on the Mornington Peninsula in Victoria, within the Shire of Mornington Peninsula, about 55 kilometres south of Melbourne's CBD on the eastern shore of Port Phillip Bay. It is bordered by Mornington to the north and Safety Beach and Dromana to the south, with Port Phillip Bay to the west. Population: 19,846 at the 2021 Census (ABS 2021 Census QuickStats, SAL21803, Suburbs and Localities). The suburb is thoroughly car-dependent — just 0.8% of employed residents commuted by public transport (Victoria: 4.4%). Demographics are established and Anglo-Australian: 76.4% born in Australia (Victoria: 65.0%), median age 46 (Victoria: 38), and 91.7% of households English-only at home. Median household income of $2,097 per week exceeds the Victorian median of $1,759. Over a quarter of residents worked from home (26.7%) at the last Census. Separate houses dominate (84.2%) with 4+-bedroom homes at 45.6% (Victoria: 32.6%). Unoccupied dwellings at 14.3% reflect holiday-home and investment activity common on the Peninsula. Unemployment was a very low 2.8% (Victoria: 5.0%). The suburb has a quiet coastal character; most services are in Mornington.
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.
Is Mount Martha a good place to live?
There’s no single answer — it depends on what matters to you. So instead of one mystery number, we break it down: a transparent score on each part of life we can back with public data, and an honest “not yet” on the parts we can’t.
Around the national middle
A weighted blend of the 2 components we can score for Mount Martha from public data. It sits alongside — and reconciles with — the socio-economic Suburb Score above; it is a transparent read, not a complete verdict.
Socio-economic advantage
89/100Among Australia's more advantaged suburbs
Among Australia's more advantaged suburbs — the same ABS SEIFA-based Suburb Score (89/100) shown above. Income, education and occupation, as published by the ABS. · ABS SEIFA 2021
Housing affordability
6/100Among the more expensive suburbs
Median weekly rent was $496 at the 2021 Census — more affordable than about 6% of suburbs we can compare. Housing data only, no valuations. · ABS Census 2021
Not yet scored
We’d rather leave these open than publish a number we can’t stand behind. Here’s where each one stands.
- Amenities & accessNot scored yet — our OpenStreetMap amenity mapping is still rolling out across suburbs.
- Green spaceNot scored yet — our OpenStreetMap green-space mapping is still rolling out across suburbs.
- TransportNot scored yet — our OpenStreetMap public-transport mapping is still rolling out across suburbs.
- SchoolsNot scored yet — school performance (ACARA / ICSEA) needs a data-reuse licence cleared before we can publish it.
- SafetyNot scored yet — Australia has no single open crime dataset and safety data carries defamation and legal care, so it is gated pending a go/no-go and will be data-only when added.
- CommunityNot scored yet — we won't reduce community to a number from a proxy. We'd rather leave it open than publish an invented value judgement.
A transparent read on public data, not a verdict — and not a measure of any person or community. See our methodology for how each component is worked out and why some aren’t scored yet.
Mount Martha at a glance
- Population (2021)
- 19,846
- Median age
- 46
- Median weekly household income
- $2,097
- SEIFA score
- 1068
- Local government area
- Mornington Peninsula
- Coordinates
- -38.2738, 145.0322
Map of Mount Martha
© OpenStreetMap contributors · View larger map
Housing & property in Mount Martha
What it costs to live in Mount Martha and how residents hold their homes, from the Australian Bureau of Statistics 2021 Census.
- Median rent
- $496
- per week
- Median mortgage
- $2,167
- per month
- Owner-occupied
- 84%
- of dwellings
- Rented
- 12%
- of dwellings
The full tenure and dwelling-type breakdown is in the Mount Martha demographics section below.
Source: ABS Census of Population and Housing, 2021. © Australian Bureau of Statistics, released under CC BY 4.0. See our methodology.
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% 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.
- 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).
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Common questions about Mount Martha
Is Mount Martha a good place to live?
There's no single answer, so we score what the public data can back. On socio-economic advantage and housing affordability, Mount Martha rates 61/100 overall (Around the national middle). Public transport, schools and safety aren't scored yet — see our methodology for why.
What is the median rent in Mount Martha?
At the 2021 Census, the median weekly rent in Mount Martha was $496, and the median monthly mortgage repayment was $2,167. These are official ABS Census figures — StreetScout publishes housing data only, with no property valuations or agent referrals.
Where is Mount Martha?
Mount Martha is a suburb of Victoria, Australia, in the Mornington Peninsula local government area.
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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