Mernda flood map & planning overlays
Mernda holds 53 heritage places, Whittlesea's most, and 98% env overlay.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Mernda
(Whittlesea, VIC) - 22.47 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
22.47 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mernda'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 Mernda
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 1 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.
Mernda at a glance
How Mernda is zoned
Selling in Mernda? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 22.47 km², Mernda is highly constrained by planning overlays. About 4% of the suburb sits within a mapped flood overlay, and 64% is flagged bushfire-prone. There are 53 heritage-listed sites on record, and the dominant land-use zone is Rural Conservation Zone (RCZ1). The median lot measures about 425 m² across 9,914 parcels.
Who lives in Mernda
Census 2021 figures published by the ABS for the Mernda 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 1009, and decile 6 within Victoria. The national average is 1000.
Age profile
Share of Mernda's 23,369 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Mernda - North, the wider ABS statistical area containing Mernda. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mernda itself.
686 in 2001 to 12,061 in 2025, up 1658%.
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.
Mernda 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 Mernda 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 43% of Mernda. 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 Mernda lot.
Mernda planning - frequently asked
Is Mernda flood-prone?
About 4% of Mernda falls within a mapped flood overlay, against the council-wide suburb average of 4%.
Is Mernda bushfire-prone?
Around 64% of Mernda is mapped as bushfire-prone, compared with a Whittlesea average of 64%.
Is Mernda under a flight path?
Aircraft were observed below 3,000 ft over about 43% of Mernda, and over about 96% 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 4,500 ft. At the busiest point in the suburb about 6 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 Mernda?
The dominant planning zone in Mernda is Rural Conservation Zone (RCZ1), though the suburb also includes General Residential Zone (GRZ1) and Green Wedge Zone (GWZ).
Does Mernda have heritage-listed places?
Mernda has 53 heritage-listed places on record.
What is the typical lot size in Mernda?
Across 9,914 surveyed parcels in Mernda, the median lot size is about 425 m². There are also 3,734 registered easements mapped in the suburb.
Does Mernda have a train station?
Yes - Mernda has 1 train station: Mernda Station. It is also served by 82 bus stops.
What is the population of Mernda?
At the 2021 Census Mernda had 23,369 usual residents, with a median age of 33 and an average household size of 3.0 people. The wider Mernda - North statistical area, which contains Mernda, went from 686 people in 2001 to 12,061 in 2025, up 1658%.
Is Mernda an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mernda scores 1009 and sits in decile 7 of 10 nationally and decile 6 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Mernda?
Median household income in Mernda was $2,011 a week at the 2021 Census, against $1,735 for the typical suburb in Whittlesea. Median rent was $381 a week and the median mortgage repayment $1,937 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Doreen Nillumbik |
4.9 km | 2% | 68% |
| South Morang | 5.1 km | 5% | 52% |
| Woodstock | 5.8 km | <1% | 99% |
| Yan Yean | 6.2 km | 9% | 89% |
| Wollert | 6.6 km | 2% | 75% |
| Yarrambat Nillumbik |
6.8 km | 1% | 100% |
| Epping | 8.1 km | 4% | 37% |
| Mill Park | 8.2 km | 4% | 16% |
| Plenty Nillumbik |
8.5 km | 2% | 98% |
| Nutfield Nillumbik |
8.9 km | Not mapped | 100% |