Mortana flood map & planning overlays
A planning-constraint profile of Mortana
(The District Council of Streaky Bay, SA) - 169.17 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 4 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
169.17 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mortana's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Mortana at a glance
How Mortana is zoned
Selling in Mortana? 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 169.17 km², Mortana 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 is 1 heritage-listed site on record, and the dominant land-use zone is Rural. The median lot measures about 1,674,660 m² across 86 parcels.
Who lives in Mortana
Census 2021 figures published by the ABS for the Mortana 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 971, and decile 5 within South Australia. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of West Coast (SA), the wider ABS statistical area containing Mortana. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mortana itself.
3,437 in 2001 to 3,895 in 2025, up 13%.
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.
Mortana 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 | Watched, not yet sampled here | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 4 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 Mortana 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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Mortana lot.
See what's in the $9 report →Mortana planning - frequently asked
Is Mortana flood-prone?
Flood mapping covers Mortana and none of the suburb falls within a mapped flood overlay.
Is Mortana bushfire-prone?
Around 100% of Mortana is mapped as bushfire-prone, compared with a The District Council of Streaky Bay average of 98%.
What is the zoning in Mortana?
The dominant planning zone in Mortana is Rural, though the suburb also includes Conservation.
Does Mortana have heritage-listed places?
Mortana has 1 heritage-listed place on record.
What is the typical lot size in Mortana?
Across 86 surveyed parcels in Mortana, the median lot size is about 1,674,660 m².
Is Mortana an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mortana scores 971 and sits in decile 5 of 10 nationally and decile 5 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Tyringa | 10.4 km | 0% | 99% |
| Calca | 11.6 km | 0% | 99% |
| Maryvale | 15.3 km | 0% | 100% |
| Baird Bay | 17.0 km | 0% | 91% |
| Colley | 18.4 km | 0% | 100% |
| Witera | 18.9 km | 0% | 94% |
| Inkster | 19.9 km | 0% | 100% |
| Sceale Bay | 20.7 km | 0% | 95% |
| Yanerbie | 20.9 km | 0% | 99% |
| Port Kenny District Council of Elliston |
25.6 km | 0% | 90% |
See all The District Council of Streaky Bay suburb profiles →