Wirrega flood map & planning overlays
A planning-constraint profile of Wirrega
(Tatiara District Council, SA) - 63.68 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
63.68 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Wirrega'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 Wirrega
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 3,500 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.
Wirrega at a glance
How Wirrega is zoned
Selling in Wirrega? 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 63.68 km², Wirrega is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 281,431 m² across 47 parcels.
Who lives in Wirrega
Census 2021 figures published by the ABS for the Wirrega 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 1028, and decile 8 within South Australia. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Tatiara, the wider ABS statistical area containing Wirrega. There is no annual population series published at suburb level, so this describes the surrounding area rather than Wirrega itself.
7,032 in 2001 to 7,088 in 2025, up 1%.
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.
Wirrega 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 Wirrega 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 1% of Wirrega. 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 Wirrega lot.
See what's in the $9 report →Wirrega planning - frequently asked
Is Wirrega flood-prone?
Flood mapping covers Wirrega and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 0%).
Is Wirrega bushfire-prone?
Around 100% of Wirrega is mapped as bushfire-prone, compared with a Tatiara District Council average of 100%.
Is Wirrega under a flight path?
Aircraft were observed below 3,000 ft over about 1% of Wirrega, and over about 5% 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 1,500 ft, with an average of 5,500 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 Wirrega?
The dominant planning zone in Wirrega is Rural.
Does Wirrega have heritage-listed places?
No heritage-listed places are on record within Wirrega.
What is the typical lot size in Wirrega?
Across 47 surveyed parcels in Wirrega, the median lot size is about 281,431 m².
Is Wirrega an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Wirrega scores 1028 and sits in decile 8 of 10 nationally and decile 8 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Cannawigara | 7.7 km | 0% | 100% |
| Brimbago | 8.5 km | 0% | 100% |
| Lowan Vale | 9.6 km | 0% | 100% |
| Sherwood | 11.8 km | 0% | 100% |
| Carew | 13.1 km | 0% | 100% |
| Buckingham | 15.0 km | 0% | 100% |
| Bordertown | 21.8 km | 2% | 99% |
| Keith | 22.5 km | 0% | 100% |
| Kongal | 22.6 km | 0% | 100% |
| Mundulla | 23.0 km | 0% | 100% |