Rapid Bay flood map & planning overlays
A planning-constraint profile of Rapid Bay
(The District Council of Yankalilla, SA) - 16.8 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
16.8 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Rapid Bay'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 Rapid Bay
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
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.
Rapid Bay at a glance
How Rapid Bay is zoned
Selling in Rapid Bay? 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 16.8 km², Rapid Bay 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 3 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 37,408 m² across 74 parcels.
Who lives in Rapid Bay
Census 2021 figures published by the ABS for the Rapid Bay 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 922, and decile 2 within South Australia. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Yankalilla, the wider ABS statistical area containing Rapid Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Rapid Bay itself.
4,321 in 2001 to 6,998 in 2025, up 62%.
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.
Rapid Bay 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 Rapid Bay 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 16% of Rapid Bay. 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 Rapid Bay lot.
See what's in the $9 report →Rapid Bay planning - frequently asked
Is Rapid Bay flood-prone?
Flood mapping covers Rapid Bay and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 0%).
Is Rapid Bay bushfire-prone?
Around 99% of Rapid Bay is mapped as bushfire-prone, compared with a The District Council of Yankalilla average of 100%.
Is Rapid Bay under a flight path?
Aircraft were observed below 3,000 ft over about 16% of Rapid Bay, and over about 36% 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 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 Rapid Bay?
The dominant planning zone in Rapid Bay is Rural, though the suburb also includes Conservation and Resource Extraction.
Does Rapid Bay have heritage-listed places?
Rapid Bay has 3 heritage-listed places on record.
What is the typical lot size in Rapid Bay?
Across 74 surveyed parcels in Rapid Bay, the median lot size is about 37,408 m².
Is Rapid Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Rapid Bay scores 922 and sits in decile 2 of 10 nationally and decile 2 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Delamere | 4.7 km | 0% | 100% |
| Second Valley | 6.5 km | 0% | 100% |
| Cape Jervis | 7.7 km | 0% | 99% |
| Wirrina Cove | 8.4 km | 0% | 97% |
| Silverton | 8.6 km | 0% | 100% |
| Deep Creek | 11.0 km | 0% | 100% |
| Hay Flat | 12.4 km | 0% | 100% |
| Normanville | 13.8 km | 2% | 97% |
| Parawa | 14.0 km | 0% | 100% |
| Tunkalilla | 16.4 km | 0% | 99% |
See all The District Council of Yankalilla suburb profiles →