Port Noarlunga South flood map & planning overlays
A planning-constraint profile of Port Noarlunga South
(City of Onkaparinga, SA) - 3.77 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
3.77 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Port Noarlunga 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 Port Noarlunga 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
typical observed square 2 a day
Night movements: observed, lowest 2,500 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 Noarlunga South at a glance
How Port Noarlunga South is zoned
Selling in Port Noarlunga 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 3.77 km², Port Noarlunga South is highly constrained by planning overlays. About 29% of the suburb sits within a mapped flood overlay, and 45% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Conservation. The median lot measures about 565 m² across 1,831 parcels.
Who lives in Port Noarlunga South
Census 2021 figures published by the ABS for the Port Noarlunga 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 976, and decile 5 within South Australia. The national average is 1000.
Age profile
Share of Port Noarlunga South's 3,058 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Seaford - Seaford Meadows, the wider ABS statistical area containing Port Noarlunga South. There is no annual population series published at suburb level, so this describes the surrounding area rather than Port Noarlunga South itself.
7,610 in 2001 to 15,439 in 2025, up 103%.
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 Noarlunga 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 Port Noarlunga 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.
Aircraft have been seen below 3,000 ft over about 42% of Port Noarlunga South. 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 Noarlunga South lot.
See what's in the $9 report →Port Noarlunga South planning - frequently asked
Is Port Noarlunga South flood-prone?
About 29% of Port Noarlunga South falls within a mapped flood overlay, against the council-wide suburb average of 4%.
Is Port Noarlunga South bushfire-prone?
Around 45% of Port Noarlunga South is mapped as bushfire-prone, compared with a City of Onkaparinga average of 69%.
Is Port Noarlunga South under a flight path?
Aircraft were observed below 3,000 ft over about 42% of Port Noarlunga South, and over about 65% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 500 ft, with an average of 3,500 ft. At the busiest point in the suburb about 17 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 Noarlunga South?
The dominant planning zone in Port Noarlunga South is Conservation, though the suburb also includes General Neighbourhood and Master Planned Neighbourhood.
Does Port Noarlunga South have heritage-listed places?
Port Noarlunga South has 2 heritage-listed places on record.
What is the typical lot size in Port Noarlunga South?
Across 1,831 surveyed parcels in Port Noarlunga South, the median lot size is about 565 m².
Does Port Noarlunga South have a train station?
There is no train station inside Port Noarlunga South itself. The suburb is served by 22 bus stops.
What is the population of Port Noarlunga South?
At the 2021 Census Port Noarlunga South had 3,058 usual residents, with a median age of 39 and an average household size of 2.5 people. The wider Seaford - Seaford Meadows statistical area, which contains Port Noarlunga South, went from 7,610 people in 2001 to 15,439 in 2025, up 103%.
Is Port Noarlunga South an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Port Noarlunga South scores 976 and sits in decile 5 of 10 nationally and decile 5 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Port Noarlunga South?
Median household income in Port Noarlunga South was $1,530 a week at the 2021 Census, against $1,512 for the typical suburb in City of Onkaparinga. Median rent was $350 a week and the median mortgage repayment $1,517 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Seaford Meadows | 0.9 km | 27% | 12% |
| Port Noarlunga | 1.2 km | 20% | 46% |
| Noarlunga Downs | 2.1 km | 22% | 18% |
| Seaford | 2.3 km | 0% | 35% |
| Old Noarlunga | 2.7 km | 13% | 96% |
| Noarlunga Centre | 3.0 km | 0% | 0% |
| Huntfield Heights | 3.2 km | 6% | 32% |
| Christies Beach | 3.5 km | 0% | 37% |
| Onkaparinga Heights | 3.8 km | 0% | 100% |
| Seaford Heights | 4.0 km | 0% | 67% |