Coral Sea flood map & planning overlays
A planning-constraint profile of Coral Sea
(Mackay Regional, QLD) - 26808.79 km², mapped from live council and
state overlay data. This suburb is moderately constrained.
Profile updated 19 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
26808.79 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Coral Sea's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Coral Sea properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 50 Coral Sea properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 50 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Coral Sea.
Coral Sea at a glance
Schools in and near Coral Sea
Public school-location data shows availability across the suburb. These figures do not rate schools and do not assign a particular address to a catchment.
Inside the suburb boundary
0 schools providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 0.08 km from the suburb boundary
Secondary: 1.64 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time; use the official catchment finder for a specific address.
How Coral Sea is zoned
Selling in Coral Sea? The lot-level zone is the zoning Part 3 of Queensland's Form 2 seller disclosure statement asks for - see our Form 2 planning data guide.
Across its 26808.79 km², Coral Sea is moderately constrained by planning overlays. About 1% of the suburb sits within a mapped flood overlay. The dominant land-use zone is Conservation. The terrain is steep, and the median lot measures about 35,580 m² across 180 parcels.
Who lives in Coral Sea
Census 2021 figures published by the ABS for the Coral Sea 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 976, and decile 6 within Queensland. The national average is 1000.
Age profile
Share of Coral Sea's 78 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Seaforth - Calen, the wider ABS statistical area containing Coral Sea. There is no annual population series published at suburb level, so this describes the surrounding area rather than Coral Sea itself.
7,079 in 2001 to 8,785 in 2025, up 24%.
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.
Coral Sea 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 relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 19 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 Coral Sea 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.
Published flood models are held over parts of Coral Sea. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
The Terrain Report shows the fall of the block - contours, cross sections and a 3D model of the lot (+$9 with the planning report).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Coral Sea lot.
See what's in the $9 report →Coral Sea planning - frequently asked
Is Coral Sea flood-prone?
About 1% of Coral Sea falls within a mapped flood overlay, against the council-wide suburb average of 34%. Across the suburb, 88% of the 50 properties we analysed carry some level of mapped flood risk, including 44 rated high risk or historically affected.
Is Coral Sea bushfire-prone?
Bushfire mapping covers Coral Sea and little to none of it is mapped as bushfire-prone (the Mackay Regional average is 26%).
What is the zoning in Coral Sea?
The dominant planning zone in Coral Sea is Conservation, though the suburb also includes Strategic Port Land and Open space.
Does Coral Sea have heritage-listed places?
No heritage-listed places are on record within Coral Sea.
Is Coral Sea hilly or flat?
Coral Sea is steep: the median ground slope is about 28%, and 66% of measured points sit on grades of 15% or steeper. Ground level runs from roughly -2 m to 239 m AHD across the suburb.
What is the typical lot size in Coral Sea?
Across 180 surveyed parcels in Coral Sea, the median lot size is about 35,580 m².
What is the population of Coral Sea?
At the 2021 Census Coral Sea had 78 usual residents, with a median age of 36 and an average household size of 1.6 people. The wider Seaforth - Calen statistical area, which contains Coral Sea, went from 7,079 people in 2001 to 8,785 in 2025, up 24%.
Is Coral Sea an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Coral Sea scores 976 and sits in decile 5 of 10 nationally and decile 6 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Coral Sea?
Median household income in Coral Sea was $1,374 a week at the 2021 Census, against $1,937 for the typical suburb in Mackay Regional. Median rent was $130 a week.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Whitsundays Whitsunday Regional |
105.3 km | 2% | 6% |
| Keswick Island | 106.2 km | 5% | 5% |
| Campwin Beach | 120.0 km | 64% | 13% |
| Hay Point | 121.1 km | 35% | 15% |
| Grasstree Beach | 121.3 km | 11% | 44% |
| Sarina Beach | 122.4 km | 50% | 19% |
| Slade Point | 122.9 km | 68% | 12% |
| Mackay Harbour | 123.3 km | 70% | 17% |
| Freshwater Point | 124.0 km | 74% | 18% |
| East Mackay | 125.2 km | 92% | 1% |