Moana flood map & planning overlays
A planning-constraint profile of Moana
(City of Onkaparinga, SA) - 2.56 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
2.56 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Moana'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 Moana
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: 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.
Moana at a glance
How Moana is zoned
Selling in Moana? 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 2.56 km², Moana is highly constrained by planning overlays. About 11% of the suburb sits within a mapped flood overlay, and 92% is flagged bushfire-prone. The dominant land-use zone is Conservation. The median lot measures about 600 m² across 1,868 parcels.
Who lives in Moana
Census 2021 figures published by the ABS for the Moana 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 990, and decile 6 within South Australia. The national average is 1000.
Age profile
Share of Moana's 3,316 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Seaford Rise - Moana, the wider ABS statistical area containing Moana. There is no annual population series published at suburb level, so this describes the surrounding area rather than Moana itself.
7,371 in 2001 to 11,600 in 2025, up 57%.
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.
Moana 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 Moana 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 Moana. 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 Moana lot.
See what's in the $9 report →Moana planning - frequently asked
Is Moana flood-prone?
About 11% of Moana falls within a mapped flood overlay, against the council-wide suburb average of 4%.
Is Moana bushfire-prone?
Around 92% of Moana is mapped as bushfire-prone, compared with a City of Onkaparinga average of 69%.
Is Moana under a flight path?
Aircraft were observed below 3,000 ft over about 42% of Moana, and over about 44% 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 1,000 ft. At the busiest point in the suburb about 2 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 Moana?
The dominant planning zone in Moana is Conservation, though the suburb also includes General Neighbourhood and Master Planned Neighbourhood.
Does Moana have heritage-listed places?
No heritage-listed places are on record within Moana.
What is the typical lot size in Moana?
Across 1,868 surveyed parcels in Moana, the median lot size is about 600 m².
Does Moana have a train station?
There is no train station inside Moana itself. The suburb is served by 17 bus stops.
What is the population of Moana?
At the 2021 Census Moana had 3,316 usual residents, with a median age of 40 and an average household size of 2.5 people. The wider Seaford Rise - Moana statistical area, which contains Moana, went from 7,371 people in 2001 to 11,600 in 2025, up 57%.
Is Moana an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Moana 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 Moana?
Median household income in Moana was $1,631 a week at the 2021 Census, against $1,512 for the typical suburb in City of Onkaparinga. Median rent was $330 a week and the median mortgage repayment $1,625 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Seaford Rise | 1.0 km | 3% | 51% |
| Seaford Heights | 2.3 km | 0% | 67% |
| Seaford | 2.4 km | 0% | 35% |
| Maslin Beach | 2.9 km | 0% | 98% |
| Old Noarlunga | 3.9 km | 13% | 96% |
| Seaford Meadows | 4.5 km | 27% | 12% |
| Port Noarlunga South | 4.7 km | 29% | 45% |
| Tatachilla | 4.8 km | 0% | 100% |
| Mclaren Vale | 5.4 km | 2% | 100% |
| Port Willunga | 5.7 km | 7% | 90% |