Monarto South flood map & planning overlays
A planning-constraint profile of Monarto South
(The Rural City of Murray Bridge, SA) - 127.4 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
127.4 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Monarto South'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 Monarto South
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 4 Sep to 26 Sep 2026
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.
Monarto South at a glance
How Monarto South is zoned
Selling in Monarto South? 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 127.4 km², Monarto South 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 327,886 m² across 284 parcels.
Who lives in Monarto South
Census 2021 figures published by the ABS for the Monarto South 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 965, and decile 4 within South Australia. The national average is 1000.
Age profile
Share of Monarto South's 152 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Murray Bridge Surrounds, the wider ABS statistical area containing Monarto South. There is no annual population series published at suburb level, so this describes the surrounding area rather than Monarto South itself.
3,472 in 2001 to 3,993 in 2025, up 15%.
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.
Monarto South 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 26 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 Monarto South 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.
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 an indicative AS 2870 site class for a Monarto South lot.
See what's in the $9 report →Monarto South planning - frequently asked
Is Monarto South flood-prone?
Flood mapping covers Monarto South and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 47%).
Is Monarto South bushfire-prone?
Around 100% of Monarto South is mapped as bushfire-prone, compared with a The Rural City of Murray Bridge average of 99%.
Is Monarto South under a flight path?
Aircraft were observed over about 10% of Monarto South in the period sampled, but only above 3,000 ft - the lowest measured was 4,000 ft. 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 Monarto South?
The dominant planning zone in Monarto South is Rural, though the suburb also includes Conservation and Strategic Employment.
Does Monarto South have heritage-listed places?
No heritage-listed places are on record within Monarto South.
What is the typical lot size in Monarto South?
Across 284 surveyed parcels in Monarto South, the median lot size is about 327,886 m².
Does Monarto South have a train station?
There is no train station inside Monarto South itself. The suburb is served by 2 bus stops.
What is the population of Monarto South?
At the 2021 Census Monarto South had 152 usual residents, with a median age of 40 and an average household size of 2.7 people. The wider Murray Bridge Surrounds statistical area, which contains Monarto South, went from 3,472 people in 2001 to 3,993 in 2025, up 15%.
Is Monarto South an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Monarto South scores 965 and sits in decile 4 of 10 nationally and decile 4 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Monarto South?
Median household income in Monarto South was $1,774 a week at the 2021 Census, against $1,379 for the typical suburb in The Rural City of Murray Bridge. Median rent was $115 a week and the median mortgage repayment $1,464 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Hartley Alexandrina Council |
8.7 km | 0% | 100% |
| White Hill | 8.8 km | 0% | 100% |
| Gifford Hill | 8.9 km | 0% | 100% |
| Rocky Gully | 10.2 km | <1% | 100% |
| Salem Alexandrina Council |
10.4 km | 0% | 100% |
| Monarto | 10.9 km | 0% | 100% |
| Callington Mount Barker District Council |
11.5 km | 0% | 100% |
| Brinkley | 12.3 km | 0% | 100% |
| Murray Bridge South | 13.3 km | <1% | 100% |
| Murray Bridge | 13.5 km | 13% | 78% |