Mannum flood map & planning overlays

A planning-constraint profile of Mannum (Mid Murray Council, SA) - 256.33 km², mapped from live council and state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.

Suburb-wide figures; the free map shows which overlays touch your lot.

Planning schematicMannum

Constraint readout

256.33 km² - this suburb is highly constrained by planning overlays.

Flood overlay 20%

below council avg (48%) · #39 of 67 mapped council suburbs

Bushfire-prone 100%

≈ council avg (100%) · #67 of 67 mapped council suburbs

Environmental16%

≈ council avg (13%) · #14 of 67 in council

Heritage sites 46 Character <1% Mostly Rural Flood 39th most affected of 67 → Bushfire 67th most affected of 67 →

Elevation hillshade with street names, clipped to Mannum'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 Mannum

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 3 Oct 2026

Under observed aircraft

12%

of the suburb, at or below 10,000 ft

Below 3,000 ft

of the suburb's area

Lowest measured

3,500 ft

averaging 5,500 ft

How often

not established

aircraft were seen, but not often enough to put a rate on

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.

Mannum at a glance

Parcels 2,783 Median lot 1,056 m² Bus stops 10

How Mannum is zoned

Rural 91%

Conservation 4%

Rural Living 2%

Suburban Neighbourhood 1%

Tourism Development 0%

Hills Neighbourhood 0%

Selling in Mannum? 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 256.33 km², Mannum is highly constrained by planning overlays. About 20% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 46 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 1,056 m² across 2,783 parcels.

Who lives in Mannum

Census 2021 figures published by the ABS for the Mannum suburb boundary itself, not a wider region.

Population

2,919

usual residents, 2021

Median age

years

Median household income

$822

per week, Mid Murray Council suburb typical $887

Median rent

$220

per week, Mid Murray Council suburb typical $200

Median mortgage

$1,100

per month

Household size

2.1

people, average

Socio-economic standing

ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.

Advantage and disadvantage (IRSAD) Decile 1

most disadvantagedleast disadvantaged

Score 856, and decile 1 within South Australia. The national average is 1000.

Relative disadvantage (IRSD) Decile 1

most disadvantagedleast disadvantaged

Age profile

Share of Mannum's 2,919 residents in each ABS age band.

0-4 4.4%

5-14 9.4%

15-19 4.2%

20-24 3.8%

25-34 7.2%

35-44 7.3%

45-54 11.6%

55-64 15.5%

65-74 20.6%

75-84 12.1%

85+ 3.9%

Population trend, 2001 to 2025

Estimated resident population of Mannum, the wider ABS statistical area containing Mannum. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mannum itself.

5,925 in 2001 to 7,012 in 2025, up 18%.

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.

Mannum 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 3 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 Mannum 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 Mannum lot.

See what's in the $9 report →

Mannum planning - frequently asked

Is Mannum flood-prone?

About 20% of Mannum falls within a mapped flood overlay, against the council-wide suburb average of 48%.

Is Mannum bushfire-prone?

Around 100% of Mannum is mapped as bushfire-prone, compared with a Mid Murray Council average of 100%.

Is Mannum under a flight path?

Aircraft were observed over about 12% of Mannum in the period sampled, but only above 3,000 ft - the lowest measured was 3,500 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 Mannum?

The dominant planning zone in Mannum is Rural, though the suburb also includes Conservation and Rural Living.

Does Mannum have heritage-listed places?

Mannum has 46 heritage-listed places on record.

What is the typical lot size in Mannum?

Across 2,783 surveyed parcels in Mannum, the median lot size is about 1,056 m².

Does Mannum have a train station?

There is no train station inside Mannum itself. The suburb is served by 10 bus stops.

What is the population of Mannum?

At the 2021 Census Mannum had 2,919 usual residents, with a median age of 56 and an average household size of 2.1 people. The wider Mannum statistical area, which contains Mannum, went from 5,925 people in 2001 to 7,012 in 2025, up 18%.

Is Mannum an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mannum scores 856 and sits in decile 1 of 10 nationally and decile 1 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Mannum?

Median household income in Mannum was $822 a week at the 2021 Census, against $887 for the typical suburb in Mid Murray Council. Median rent was $220 a week and the median mortgage repayment $1,100 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Pellaring Flat	3.4 km	100%	100%
Frahns	3.6 km	100%	100%
Five Miles	4.1 km	100%	100%
Bolto	7.0 km	100%	100%
Punthari	7.2 km	0%	100%
Cowirra	7.3 km	100%	100%
Rocky Point	8.3 km	100%	100%
Port Mannum	8.8 km	24%	100%
Frayville	9.8 km	0%	100%
Ponde	10.4 km	59%	100%

See all Mid Murray Council suburb profiles →