Mount Martha flood map & planning overlays
Mount Martha houses 19,846 people, 2nd on the Peninsula.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Mount Martha
(Mornington Peninsula, VIC) - 30.33 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
30.33 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Martha's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Mount Martha
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 24 Oct 2026
typical observed square 0 a day
Night movements: observed, lowest 1,500 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
How this is measured
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
Mount Martha at a glance
How Mount Martha is zoned
Selling in Mount Martha? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 30.33 km², Mount Martha is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 80% is flagged bushfire-prone. There are 38 heritage-listed sites on record, and the dominant land-use zone is General Residential Zone (GRZ1). The median lot measures about 871 m² across 9,659 parcels.
Who lives in Mount Martha
Census 2021 figures published by the ABS for the Mount Martha suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 1068, and decile 10 within Victoria. The national average is 1000.
Age profile
Share of Mount Martha's 19,846 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Mount Martha, the wider ABS statistical area containing Mount Martha. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Martha itself.
12,493 in 2001 to 20,161 in 2025, up 61%.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Mount Martha data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Bushfire-prone mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Zoning | Mapped | Vicmap Planning and Victorian Government spatial services |
| Heritage and environment | Mapped where published | Vicmap Planning and Victorian Government spatial services |
| Aircraft noise contours (ANEF) | Not held | Vicmap Planning and Victorian Government spatial services, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 24 October 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Mount Martha address
See exactly which overlays touch a single property - the interactive map is free. Need it on paper? A full planning PDF is just $9.
See what's in the $9 report →Aircraft have been seen below 3,000 ft over about 88% of Mount Martha. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Mount Martha lot.
Mount Martha planning - frequently asked
Is Mount Martha flood-prone?
Flood mapping covers Mount Martha and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 4%).
Is Mount Martha bushfire-prone?
Around 80% of Mount Martha is mapped as bushfire-prone, compared with a Mornington Peninsula average of 86%.
Is Mount Martha under a flight path?
Aircraft were observed below 3,000 ft over about 88% of Mount Martha, and over about 94% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 24 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 2,000 ft. At the busiest point in the suburb about 3 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
What is the zoning in Mount Martha?
The dominant planning zone in Mount Martha is General Residential Zone (GRZ1), though the suburb also includes Green Wedge Zone (GWZ3) and Low Density Residential Zone (LDRZ).
Does Mount Martha have heritage-listed places?
Mount Martha has 38 heritage-listed places on record.
What is the typical lot size in Mount Martha?
Across 9,659 surveyed parcels in Mount Martha, the median lot size is about 871 m². There are also 4,628 registered easements mapped in the suburb.
Does Mount Martha have a train station?
There is no train station inside Mount Martha itself. The suburb is served by 82 bus stops.
What is the population of Mount Martha?
At the 2021 Census Mount Martha had 19,846 usual residents, with a median age of 46 and an average household size of 2.7 people. The wider Mount Martha statistical area, which contains Mount Martha, went from 12,493 people in 2001 to 20,161 in 2025, up 61%.
Is Mount Martha an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Martha scores 1068 and sits in decile 9 of 10 nationally and decile 10 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Mount Martha?
Median household income in Mount Martha was $2,097 a week at the 2021 Census, against $1,906 for the typical suburb in Mornington Peninsula. Median rent was $496 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Safety Beach | 5.4 km | <1% | 26% |
| Mornington | 5.7 km | <1% | 30% |
| Tuerong | 5.8 km | Not mapped | 100% |
| Dromana | 6.7 km | <1% | 89% |
| Moorooduc | 8.0 km | Not mapped | 100% |
| Merricks North | 8.3 km | Not mapped | 100% |
| Red Hill | 9.9 km | Not mapped | 100% |
| Mount Eliza | 10.5 km | <1% | 71% |
| Arthurs Seat | 11.6 km | Not mapped | 100% |
| Balnarring | 12.3 km | 0% | 98% |