Port Noarlunga flood map & planning overlays
A planning-constraint profile of Port Noarlunga
(City of Onkaparinga, SA) - 2.6 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
2.6 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Port Noarlunga'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
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 1 a day
Night movements: observed, lowest 2,000 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 Noarlunga at a glance
How Port Noarlunga is zoned
Selling in Port Noarlunga? 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 2.6 km², Port Noarlunga is highly constrained by planning overlays. About 20% of the suburb sits within a mapped flood overlay, and 46% is flagged bushfire-prone. There are 23 heritage-listed sites on record, and the dominant land-use zone is Housing Diversity Neighbourhood. The median lot measures about 604 m² across 1,749 parcels.
Who lives in Port Noarlunga
Census 2021 figures published by the ABS for the Port Noarlunga 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 Port Noarlunga's 3,245 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Christies Beach, the wider ABS statistical area containing Port Noarlunga. There is no annual population series published at suburb level, so this describes the surrounding area rather than Port Noarlunga itself.
9,995 in 2001 to 11,690 in 2025, up 17%.
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 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 Noarlunga 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 62% of Port Noarlunga. 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 lot.
See what's in the $9 report →Port Noarlunga planning - frequently asked
Is Port Noarlunga flood-prone?
About 20% of Port Noarlunga falls within a mapped flood overlay, against the council-wide suburb average of 4%.
Is Port Noarlunga bushfire-prone?
Around 46% of Port Noarlunga is mapped as bushfire-prone, compared with a City of Onkaparinga average of 69%.
Is Port Noarlunga under a flight path?
Aircraft were observed below 3,000 ft over about 62% of Port Noarlunga, and over about 84% 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 2,500 ft. At the busiest point in the suburb about 5 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?
The dominant planning zone in Port Noarlunga is Housing Diversity Neighbourhood, though the suburb also includes Conservation and General Neighbourhood.
Does Port Noarlunga have heritage-listed places?
Port Noarlunga has 23 heritage-listed places on record.
What is the typical lot size in Port Noarlunga?
Across 1,749 surveyed parcels in Port Noarlunga, the median lot size is about 604 m².
Does Port Noarlunga have a train station?
There is no train station inside Port Noarlunga itself. The suburb is served by 18 bus stops.
What is the population of Port Noarlunga?
At the 2021 Census Port Noarlunga had 3,245 usual residents, with a median age of 46 and an average household size of 2.3 people. The wider Christies Beach statistical area, which contains Port Noarlunga, went from 9,995 people in 2001 to 11,690 in 2025, up 17%.
Is Port Noarlunga an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Port Noarlunga 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 Port Noarlunga?
Median household income in Port Noarlunga was $1,369 a week at the 2021 Census, against $1,512 for the typical suburb in City of Onkaparinga. Median rent was $320 a week and the median mortgage repayment $1,534 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Port Noarlunga South | 1.2 km | 29% | 45% |
| Seaford Meadows | 1.9 km | 27% | 12% |
| Noarlunga Centre | 2.1 km | 0% | 0% |
| Noarlunga Downs | 2.1 km | 22% | 18% |
| Christies Beach | 2.2 km | 0% | 37% |
| Christie Downs | 3.0 km | 0% | 0% |
| Huntfield Heights | 3.1 km | 6% | 32% |
| Hackham West | 3.5 km | 0% | 0% |
| O'Sullivan Beach | 3.5 km | 0% | 78% |
| Seaford | 3.6 km | 0% | 35% |