Middleton flood map & planning overlays

A planning-constraint profile of Middleton (Alexandrina Council, SA) - 35.11 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 schematicMiddleton

Constraint readout

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

Flood overlay 0%

below council avg (16%) · #17 of 50 mapped council suburbs

Bushfire-prone 99%

≈ council avg (100%) · #47 of 50 mapped council suburbs

Environmental24%

below council avg (69%) · #39 of 50 in council

Heritage sites 5 Character 4% Aircraft seen below 3,000 ft 6% Mostly Rural Bushfire 47th most affected of 50 →

Elevation hillshade with street names, clipped to Middleton'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 Middleton

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

19%

of the suburb, at or below 10,000 ft

Below 3,000 ft

of the suburb's area

Lowest measured

2,000 ft

averaging 3,000 ft

How often

not established

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

Night movements: observed, lowest 9,000 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.

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.

Middleton at a glance

Parcels 1,554 Median lot 800 m² Bus stops 2

How Middleton is zoned

Rural 83%

Productive Rural Landscape 9%

Neighbourhood 4%

Coastal Waters and Offshore Islands 1%

Conservation 1%

Rural Living 1%

Selling in Middleton? 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 35.11 km², Middleton is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 99% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 800 m² across 1,554 parcels.

Who lives in Middleton

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

Population

1,298

usual residents, 2021

Median age

years

Median household income

$1,330

per week, Alexandrina Council suburb typical $1,655

Median rent

$283

per week, Alexandrina Council suburb typical $270

Median mortgage

$1,300

per month

Household size

2.3

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 6

most disadvantagedleast disadvantaged

Score 990, and decile 6 within South Australia. The national average is 1000.

Relative disadvantage (IRSD) Decile 7

most disadvantagedleast disadvantaged

Age profile

Share of Middleton's 1,298 residents in each ABS age band.

0-4 3.8%

5-14 11.8%

15-19 5.1%

20-24 4.1%

25-34 7.8%

35-44 11.0%

45-54 13.8%

55-64 17.2%

65-74 16.9%

75-84 7.1%

85+ 1.5%

Population trend, 2001 to 2025

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

7,889 in 2001 to 13,711 in 2025, up 74%.

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.

Middleton 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 Middleton 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.

Aircraft have been seen below 3,000 ft over about 6% of Middleton. 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 Middleton lot.

See what's in the $9 report →

Middleton planning - frequently asked

Is Middleton flood-prone?

Flood mapping covers Middleton and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 16%).

Is Middleton bushfire-prone?

Around 99% of Middleton is mapped as bushfire-prone, compared with a Alexandrina Council average of 100%.

Is Middleton under a flight path?

Aircraft were observed below 3,000 ft over about 6% of Middleton, and over about 19% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 2,000 ft, with an average of 3,000 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 Middleton?

The dominant planning zone in Middleton is Rural, though the suburb also includes Productive Rural Landscape and Neighbourhood.

Does Middleton have heritage-listed places?

Middleton has 5 heritage-listed places on record.

What is the typical lot size in Middleton?

Across 1,554 surveyed parcels in Middleton, the median lot size is about 800 m².

Does Middleton have a train station?

There is no train station inside Middleton itself. The suburb is served by 2 bus stops.

What is the population of Middleton?

At the 2021 Census Middleton had 1,298 usual residents, with a median age of 49 and an average household size of 2.3 people. The wider Goolwa - Port Elliot statistical area, which contains Middleton, went from 7,889 people in 2001 to 13,711 in 2025, up 74%.

Is Middleton an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Middleton scores 990 and sits in decile 6 of 10 nationally and decile 6 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Middleton?

Median household income in Middleton was $1,330 a week at the 2021 Census, against $1,655 for the typical suburb in Alexandrina Council. Median rent was $283 a week and the median mortgage repayment $1,300 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Port Elliot	4.0 km	0%	99%
Goolwa	5.5 km	4%	100%
Goolwa Beach	5.8 km	0%	95%
Chiton	7.0 km	3%	98%
Mosquito Hill	7.3 km	0%	100%
Currency Creek	7.9 km	20%	100%
Hayborough City of Victor Harbor	7.9 km	2%	50%
Mccracken City of Victor Harbor	9.0 km	10%	54%
Mount Jagged	9.5 km	0%	100%
Goolwa North	9.5 km	79%	100%

See all Alexandrina Council suburb profiles →