Port Gawler flood map & planning overlays
A planning-constraint profile of Port Gawler
(Adelaide Plains Council, SA) - 40.41 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.
Constraint readout
40.41 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Port Gawler'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 Port Gawler
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
typical observed square 4 a day
Night movements: observed, lowest 3,000 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.
Port Gawler at a glance
How Port Gawler is zoned
Selling in Port Gawler? 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 40.41 km², Port Gawler is highly constrained by planning overlays. About 18% of the suburb sits within a mapped flood overlay, and 58% is flagged bushfire-prone. The dominant land-use zone is Conservation. The median lot measures about 81,453 m² across 116 parcels.
Who lives in Port Gawler
Census 2021 figures published by the ABS for the Port Gawler 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 957, and decile 4 within South Australia. The national average is 1000.
Age profile
Share of Port Gawler's 112 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Mallala, the wider ABS statistical area containing Port Gawler. There is no annual population series published at suburb level, so this describes the surrounding area rather than Port Gawler itself.
2,897 in 2001 to 3,561 in 2025, up 23%.
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.
Port Gawler 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 Port Gawler 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 86% of Port Gawler. 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 Port Gawler lot.
See what's in the $9 report →Port Gawler planning - frequently asked
Is Port Gawler flood-prone?
About 18% of Port Gawler falls within a mapped flood overlay, against the council-wide suburb average of 14%.
Is Port Gawler bushfire-prone?
Around 58% of Port Gawler is mapped as bushfire-prone, compared with a Adelaide Plains Council average of 81%.
Is Port Gawler under a flight path?
Aircraft were observed below 3,000 ft over about 86% of Port Gawler, and over about 98% 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 500 ft, with an average of 2,000 ft. At the busiest point in the suburb about 18 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 Port Gawler?
The dominant planning zone in Port Gawler is Conservation, though the suburb also includes Rural Horticulture and Coastal Waters and Offshore Islands.
Does Port Gawler have heritage-listed places?
No heritage-listed places are on record within Port Gawler.
What is the typical lot size in Port Gawler?
Across 116 surveyed parcels in Port Gawler, the median lot size is about 81,453 m².
What is the population of Port Gawler?
At the 2021 Census Port Gawler had 112 usual residents, with a median age of 36 and an average household size of 3.4 people. The wider Mallala statistical area, which contains Port Gawler, went from 2,897 people in 2001 to 3,561 in 2025, up 23%.
Is Port Gawler an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Port Gawler scores 957 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 Port Gawler?
Median household income in Port Gawler was $2,100 a week at the 2021 Census, against $1,552 for the typical suburb in Adelaide Plains Council. Median rent was $235 a week and the median mortgage repayment $1,672 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Buckland Park City of Playford |
5.9 km | 12% | 65% |
| Middle Beach | 6.1 km | 34% | 66% |
| Riverlea Park City of Playford |
6.3 km | 61% | 89% |
| Two Wells | 8.2 km | 50% | 97% |
| Virginia City of Playford |
11.5 km | 53% | 100% |
| Waterloo Corner City of Playford |
12.8 km | 46% | 82% |
| St Kilda City of Salisbury |
13.2 km | 8% | 9% |
| Lewiston | 14.0 km | 60% | 100% |
| Outer Harbor City of Port Adelaide Enfield |
14.1 km | 7% | 0% |
| North Haven City of Port Adelaide Enfield |
15.2 km | 12% | 0% |