Mount Martha, VIC 3934 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Mount Martha is a suburb of Victoria, postcode 3934, home to 19,846 residents with a settled, mature community. Located in the Mornington Peninsula local government area and roughly 51 km from the Melbourne CBD.
Snapshot
Demographics
- Population
- 19,846
- Median age
- 46 years
- Median household income
- $2,097 /week
- Median personal income
- $846 /week
- Median family income
- $2,481 /week
- Average household size
- 2.7
- Persons per bedroom
- 0.7
- Local government area
- Mornington Peninsula
- Statistical region (SA4)
- Mornington Peninsula
- Remoteness classification
- Major Cities of Australia
- Federal electorate
- Flinders
Property & cost of living
- Median rent
- $496 /week
- Median monthly mortgage
- $2,167
- Rent share of household income
- 24%
Schools
- Balcombe Grammar School
- Mount Martha Primary School
- Osborne Primary School
- Benton Junior College
Transport
- Within 800 m walk: 3 bus stops
- Within 1.6 km: 19 bus stops
- Balcombe Grammar School/Nepean Hwy
- Forest Dr/Nepean Hwy
- Kinross St/Somerset Dr
- Durham Ct/Somerset Dr
- Glencoe Cres/Somerset Dr
Lifestyle & amenities
- 1 café
- 6 parks and reserves
- 2 playgrounds
Climate
- Warmest month: Jan (25.8°C avg max)
- Coolest month: Jul (13.8°C avg max)
- Annual rainfall: 533 mm
- Reference station: Laverton RAAF, 52.2 km away
NBN & connectivity
Fibre to the Node serves 60.8% of the 9,443 resolvable premises in Mount Martha. Most premises here connect via fibre to a street cabinet, then copper into the home. Speeds depend heavily on the copper run length — NBN 100 is rarely achievable on long runs.
- Fibre to the Premises: 38.9%
- Fibre to the Node: 60.8%
- Fixed Wireless: 0.3%
Safety
- Recorded offences: 428 across postcode 3934 in the year to December 2025.
- Most common categories: 281 property offences, 50 violent offences, 8 drug offences.
- Wider Mornington Peninsula LGA: 7,089 offences per 100,000 residents.
Frequently asked questions
What is the population of Mount Martha?
Mount Martha (VIC 3934) had 19,846 residents at the most recent ABS Census. The median age is 46. It sits within the Mornington Peninsula local government area.
What is the median rent in Mount Martha?
The median advertised rent in Mount Martha is $496/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Mount Martha?
Yes — 4 schools are listed within or near Mount Martha covering independent, government sectors. Nearest include: Balcombe Grammar School (0.6 km), Mount Martha Primary School (1.6 km), Osborne Primary School (2.5 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Mount Martha?
Mount Martha is predominantly served by Fibre to the Node (60.8% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Mount Martha?
Across postcode 3934, 428 offences were recorded in the 12 months to December 2025. The most common offence categories were property (281), violent (50), drug offences (8). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
What is the climate like in Mount Martha?
In Mount Martha, mean daily temperatures range from 9.5°C to 19.8°C and annual rainfall is 533 mm measured at the Laverton RAAF weather station (52.2 km away). Long-term averages from the Bureau of Meteorology.
What public transport options are in Mount Martha?
19 public transport stops are mapped within 1.6 km of the Mount Martha centroid. Within 800 m, you'll find 3 bus stops. Stop data is sourced from state government GTFS feeds.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: