Mercunda flood map & planning overlays
A planning-constraint profile of Mercunda
(The District Council of Karoonda East Murray, SA) - 121.76 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 12 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
121.76 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mercunda's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Mercunda
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled to
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
Mercunda at a glance
How Mercunda is zoned
Selling in Mercunda? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose.
Across its 121.76 km², Mercunda is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 1,049 m² across 43 parcels.
Who lives in Mercunda
Census 2021 figures published by the ABS for the Mercunda 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 924, and decile 2 within South Australia. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Karoonda - Lameroo, the wider ABS statistical area containing Mercunda. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mercunda itself.
3,511 in 2001 to 2,944 in 2025, down 16%.
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.
Mercunda 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 | the South Australian Planning and Design Code and Location SA spatial data |
| Bushfire-prone mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Zoning | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Heritage and environment | Mapped where published | the South Australian Planning and Design Code and Location SA spatial data |
| Aircraft noise contours (ANEF) | Not held | the South Australian Planning and Design Code and Location SA spatial data, 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 12 September 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 Mercunda 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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Mercunda lot.
See what's in the $9 report →Mercunda planning - frequently asked
Is Mercunda flood-prone?
Flood mapping covers Mercunda and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Mercunda bushfire-prone?
Around 100% of Mercunda is mapped as bushfire-prone, compared with a The District Council of Karoonda East Murray average of 100%.
Is Mercunda under a flight path?
No aircraft were observed over Mercunda in the period sampled (recent weeks to now). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Mercunda?
The dominant planning zone in Mercunda is Rural.
Does Mercunda have heritage-listed places?
No heritage-listed places are on record within Mercunda.
What is the typical lot size in Mercunda?
Across 43 surveyed parcels in Mercunda, the median lot size is about 1,049 m².
Is Mercunda an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mercunda scores 924 and sits in decile 2 of 10 nationally and decile 2 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Galga | 9.7 km | 0% | 100% |
| Mantung | 9.7 km | 0% | 100% |
| Maggea The District Council of Loxton Waikerie |
16.3 km | 0% | 100% |
| Mindarie | 18.5 km | 0% | 100% |
| Bakara Well The District Council of Loxton Waikerie |
19.7 km | 0% | 100% |
| Bakara | 20.9 km | 0% | 100% |
| Copeville | 21.5 km | 0% | 100% |
| Caliph The District Council of Loxton Waikerie |
22.5 km | 0% | 100% |
| Naidia The District Council of Loxton Waikerie |
23.4 km | 0% | 100% |
| Wunkar The District Council of Loxton Waikerie |
27.9 km | 0% | 100% |
See all The District Council of Karoonda East Murray suburb profiles →