Coffin Bay flood map & planning overlays

A planning-constraint profile of Coffin Bay (Lower Eyre Council, SA) - 358.45 km², mapped from live council and state overlay data. This suburb is highly constrained.
Profile updated 4 September 2026.

Elevation hillshade with street names, clipped to Coffin Bay's boundary, with the flood, bushfire and environmental overlays drawn on top.

Nearby suburbs, nearest first

Coffin Bay at a glance

Parcels 1,013 Median lot 925 m²

How Coffin Bay is zoned

Conservation 90%
Rural 8%
Coastal Waters and Offshore Islands 1%
Neighbourhood 0%
Recreation 0%
Deferred Urban 0%

Selling in Coffin 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 358.45 km², Coffin Bay is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 96% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Conservation. The median lot measures about 925 m² across 1,013 parcels.

Who lives in Coffin Bay

Census 2021 figures published by the ABS for the Coffin Bay suburb boundary itself, not a wider region.

Population
664
usual residents, 2021
Median age
57
years
Median household income
$1,254
per week, Lower Eyre Council suburb typical $1,437
Median rent
$273
per week, Lower Eyre Council suburb typical $190
Median mortgage
$1,300
per month
Household size
2.0
people, average

Socio-economic standing

ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.

Advantage and disadvantage (IRSAD) Decile 4
most disadvantagedleast disadvantaged

Score 953, and decile 4 within South Australia. The national average is 1000.

Relative disadvantage (IRSD) Decile 5
most disadvantagedleast disadvantaged

Age profile

Share of Coffin Bay's 664 residents in each ABS age band.

0-4 4.5%
5-14 8.2%
15-19 2.2%
20-24 2.8%
25-34 7.8%
35-44 10.0%
45-54 11.4%
55-64 19.0%
65-74 22.0%
75-84 11.1%
85+ 1.0%

Population trend, 2001 to 2025

Estimated resident population of Eyre Peninsula, the wider ABS statistical area containing Coffin Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Coffin Bay 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.

Coffin Bay data sources and coverage

“Not mapped” means we hold no source layer for this suburb - never an all-clear.

DatasetCoveragePublisher
Flood mappingMappedthe South Australian Planning and Design Code and Location SA spatial data
Bushfire-prone mappingMappedthe South Australian Planning and Design Code and Location SA spatial data
ZoningMappedthe South Australian Planning and Design Code and Location SA spatial data
Heritage and environmentMapped where publishedthe South Australian Planning and Design Code and Location SA spatial data
Aircraft noise contours (ANEF)Not heldthe South Australian Planning and Design Code and Location SA spatial data, Defence
Observed flight pathsWatched, not yet sampled hereadsb.lol, under the Open Database License
DemographicsAvailableAustralian 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 Coffin 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.

Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Coffin Bay lot.

See what's in the $9 report →

Coffin Bay planning - frequently asked

Is Coffin Bay flood-prone?

Flood mapping covers Coffin Bay and none of the suburb falls within a mapped flood overlay.

Is Coffin Bay bushfire-prone?

Around 96% of Coffin Bay is mapped as bushfire-prone, compared with a Lower Eyre Council average of 97%.

What is the zoning in Coffin Bay?

The dominant planning zone in Coffin Bay is Conservation, though the suburb also includes Rural and Coastal Waters and Offshore Islands.

Does Coffin Bay have heritage-listed places?

Coffin Bay has 4 heritage-listed places on record.

What is the typical lot size in Coffin Bay?

Across 1,013 surveyed parcels in Coffin Bay, the median lot size is about 925 m².

What is the population of Coffin Bay?

At the 2021 Census Coffin Bay had 664 usual residents, with a median age of 57 and an average household size of 2.0 people. The wider Eyre Peninsula statistical area, which contains Coffin Bay, went from 6,179 people in 2001 to 7,232 in 2025, up 17%.

Is Coffin Bay an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Coffin Bay scores 953 and sits in decile 4 of 10 nationally and decile 4 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Coffin Bay?

Median household income in Coffin Bay was $1,254 a week at the 2021 Census, against $1,437 for the typical suburb in Lower Eyre Council. Median rent was $273 a week and the median mortgage repayment $1,300 a month.

Compare nearby suburbs

Nearby suburbDistanceFlood mappedBushfire-prone
Little Douglas 7.9 km 0% 66%
Mount Dutton Bay 11.6 km 0% 91%
Farm Beach 11.7 km 0% 91%
Kellidie Bay 16.0 km 0% 77%
Wangary 18.6 km 0% 100%
Coulta 23.7 km 0% 100%
Fountain 29.0 km 0% 100%
Uley 30.3 km 0% 100%
Wanilla 33.7 km 0% 100%
Pearlah 35.2 km 0% 100%

See all Lower Eyre Council suburb profiles →