Coulta flood map & planning overlays
A planning-constraint profile of Coulta
(Lower Eyre Council, SA) - 334.7 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
334.7 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Coulta's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Coulta at a glance
How Coulta is zoned
Selling in Coulta? 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 334.7 km², Coulta 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 7 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 273,847 m² across 374 parcels.
Who lives in Coulta
Census 2021 figures published by the ABS for the Coulta 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 943, and decile 3 within South Australia. The national average is 1000.
Age profile
Share of Coulta's 213 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Eyre Peninsula, the wider ABS statistical area containing Coulta. There is no annual population series published at suburb level, so this describes the surrounding area rather than Coulta itself.
6,179 in 2001 to 7,232 in 2025, up 17%.
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.
Coulta 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 Coulta 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 Coulta lot.
See what's in the $9 report →Coulta planning - frequently asked
Is Coulta flood-prone?
Flood mapping covers Coulta and none of the suburb falls within a mapped flood overlay.
Is Coulta bushfire-prone?
Around 100% of Coulta is mapped as bushfire-prone, compared with a Lower Eyre Council average of 97%.
What is the zoning in Coulta?
The dominant planning zone in Coulta is Rural, though the suburb also includes Conservation and Coastal Waters and Offshore Islands.
Does Coulta have heritage-listed places?
Coulta has 7 heritage-listed places on record.
What is the typical lot size in Coulta?
Across 374 surveyed parcels in Coulta, the median lot size is about 273,847 m².
What is the population of Coulta?
At the 2021 Census Coulta had 213 usual residents, with a median age of 40 and an average household size of 2.7 people. The wider Eyre Peninsula statistical area, which contains Coulta, went from 6,179 people in 2001 to 7,232 in 2025, up 17%.
Is Coulta an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Coulta scores 943 and sits in decile 3 of 10 nationally and decile 3 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Coulta?
Median household income in Coulta was $1,387 a week at the 2021 Census, against $1,437 for the typical suburb in Lower Eyre Council. Median rent was $150 a week and the median mortgage repayment $1,042 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Farm Beach | 12.0 km | 0% | 91% |
| Mount Dutton Bay | 13.9 km | 0% | 91% |
| Mount Drummond | 17.5 km | 0% | 100% |
| Wangary | 18.0 km | 0% | 100% |
| Little Douglas | 18.0 km | 0% | 66% |
| Edillilie | 19.0 km | 0% | 100% |
| Cummins | 21.7 km | 0% | 100% |
| Kellidie Bay | 22.2 km | 0% | 77% |
| Coffin Bay | 23.7 km | 0% | 96% |
| Wanilla | 25.3 km | 0% | 100% |