Altona flood map & planning overlays
A planning-constraint profile of Altona
(The Barossa Council, SA) - 8.9 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
8.9 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Altona'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 Altona
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
typical observed square 2 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.
Altona at a glance
How Altona is zoned
Selling in Altona? 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 8.9 km², Altona 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. There are 5 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 10,636 m² across 98 parcels.
Who lives in Altona
Census 2021 figures published by the ABS for the Altona 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 1058, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of Altona's 114 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lyndoch, the wider ABS statistical area containing Altona. There is no annual population series published at suburb level, so this describes the surrounding area rather than Altona itself.
4,719 in 2001 to 6,981 in 2025, up 48%.
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.
Altona 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 Altona 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 23% of Altona. 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 Altona lot.
See what's in the $9 report →Altona planning - frequently asked
Is Altona flood-prone?
Flood mapping covers Altona and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Altona bushfire-prone?
Around 100% of Altona is mapped as bushfire-prone, compared with a The Barossa Council average of 100%.
Is Altona under a flight path?
Aircraft were observed below 3,000 ft over about 23% of Altona, and over about 62% 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 5,500 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 Altona?
The dominant planning zone in Altona is Rural, though the suburb also includes Recreation and Rural Living.
Does Altona have heritage-listed places?
Altona has 5 heritage-listed places on record.
What is the typical lot size in Altona?
Across 98 surveyed parcels in Altona, the median lot size is about 10,636 m².
What is the population of Altona?
At the 2021 Census Altona had 114 usual residents, with a median age of 50 and an average household size of 2.2 people. The wider Lyndoch statistical area, which contains Altona, went from 4,719 people in 2001 to 6,981 in 2025, up 48%.
Is Altona an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Altona scores 1058 and sits in decile 9 of 10 nationally and decile 10 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Altona?
Median household income in Altona was $1,468 a week at the 2021 Census, against $1,705 for the typical suburb in The Barossa Council. Median rent was $350 a week and the median mortgage repayment $1,733 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Lyndoch | 3.0 km | 0% | 100% |
| Rowland Flat | 3.4 km | <1% | 100% |
| Krondorf | 6.5 km | 0% | 100% |
| Pewsey Vale | 6.6 km | 0% | 100% |
| Sandy Creek | 7.0 km | 0% | 100% |
| Gomersal Light Regional Council |
7.2 km | 0% | 100% |
| Cockatoo Valley | 7.7 km | 0% | 100% |
| Williamstown | 7.7 km | 0% | 100% |
| Rosedale | 7.7 km | 0% | 100% |
| Bethany | 8.7 km | 0% | 100% |