Hardwicke Bay flood map & planning overlays
A planning-constraint profile of Hardwicke Bay
(Yorke Peninsula Council, SA) - 23.3 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
23.3 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hardwicke 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 Hardwicke 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 26 Sep 2026
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.
Hardwicke Bay at a glance
How Hardwicke Bay is zoned
Selling in Hardwicke 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 23.3 km², Hardwicke Bay is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 94% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 817 m² across 373 parcels.
Who lives in Hardwicke Bay
Census 2021 figures published by the ABS for the Hardwicke 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 917, and decile 2 within South Australia. The national average is 1000.
Age profile
Share of Hardwicke Bay's 149 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Yorke Peninsula - South, the wider ABS statistical area containing Hardwicke Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Hardwicke Bay itself.
4,171 in 2001 to 4,489 in 2025, up 8%.
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.
Hardwicke 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 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 Hardwicke 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 2% of Hardwicke 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 Hardwicke Bay lot.
See what's in the $9 report →Hardwicke Bay planning - frequently asked
Is Hardwicke Bay flood-prone?
Flood mapping covers Hardwicke Bay and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Hardwicke Bay bushfire-prone?
Around 94% of Hardwicke Bay is mapped as bushfire-prone, compared with a Yorke Peninsula Council average of 93%.
Is Hardwicke Bay under a flight path?
Aircraft were observed below 3,000 ft over about 2% of Hardwicke Bay, and over about 16% 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 1,000 ft, with an average of 5,000 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 Hardwicke Bay?
The dominant planning zone in Hardwicke Bay is Rural, though the suburb also includes Conservation and Coastal Waters and Offshore Islands.
Does Hardwicke Bay have heritage-listed places?
No heritage-listed places are on record within Hardwicke Bay.
What is the typical lot size in Hardwicke Bay?
Across 373 surveyed parcels in Hardwicke Bay, the median lot size is about 817 m².
Does Hardwicke Bay have a train station?
There is no train station inside Hardwicke Bay itself. The suburb is served by 2 bus stops.
What is the population of Hardwicke Bay?
At the 2021 Census Hardwicke Bay had 149 usual residents, with a median age of 61 and an average household size of 1.9 people. The wider Yorke Peninsula - South statistical area, which contains Hardwicke Bay, went from 4,171 people in 2001 to 4,489 in 2025, up 8%.
Is Hardwicke Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Hardwicke Bay scores 917 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).
What is the median household income in Hardwicke Bay?
Median household income in Hardwicke Bay was $735 a week at the 2021 Census, against $937 for the typical suburb in Yorke Peninsula Council. Median rent was $245 a week and the median mortgage repayment $1,038 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Brentwood | 5.1 km | 0% | 98% |
| Minlaton | 13.0 km | 0% | 100% |
| Point Turton | 13.4 km | 0% | 88% |
| Parsons Beach | 14.8 km | 0% | 95% |
| Yorketown | 15.1 km | 0% | 100% |
| Bluff Beach | 19.2 km | 0% | 95% |
| Point Souttar | 20.0 km | 0% | 98% |
| Warooka | 20.1 km | 0% | 100% |
| Port Moorowie | 23.0 km | 0% | 97% |
| Ramsay | 23.9 km | 0% | 100% |