Green Island flood map & planning overlays
100% under environmental overlays, joint top in Queensland, mostly high ecological value waters.
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A planning-constraint profile of Green Island
(Cairns Regional, QLD) - 3.46 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 5 November 2026.
Constraint readout
3.46 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Green Island's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Green Island properties?
Counts of properties, not share of land, across 6 analysed Green Island properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 6 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Green Island.
Aircraft noise and flight paths over Green Island
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled to
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
How this is measured
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.
Green Island at a glance
Schools in and near Green Island
Public school-location data shows availability across the suburb; it does not rate schools or assign any individual 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: 18.93 km from the suburb boundary
Secondary: 20.52 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time.
Which school zone is a Green Island address in? Check an address with our free school zone checker.
How Green Island is zoned
Selling in Green Island? 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 3.46 km², Green Island is highly constrained by planning overlays. About 3% of the suburb sits within a mapped flood overlay. There is 1 heritage-listed site on record, and the dominant land-use zone is Conservation. The terrain is largely flat, and the median lot measures about 8,981 m² across 6 parcels.
Who lives in Green Island
Census 2021 figures published by the ABS for the Green Island 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 1026, and decile 9 within Queensland. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Gordonvale - Trinity, the wider ABS statistical area containing Green Island. There is no annual population series published at suburb level, so this describes the surrounding area rather than Green Island itself.
6,364 in 2001 to 11,413 in 2025, up 79%.
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.
Green Island 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 |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 5 November 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 Green Island 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.
See what's in the $9 report →Published flood models are held over parts of Green Island. 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 to spin round in your browser (+$9 with the planning report).
Moving here? The Liveability section adds walking times from the address to schools, parks, shops and transport, and the school zones it sits in (+$9 with the planning report).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Green Island lot.
Green Island planning - frequently asked
Is Green Island flood-prone?
About 3% of Green Island falls within a mapped flood overlay, against the council-wide suburb average of 55%. Across the suburb, 0% of the 6 properties we analysed carry some level of mapped flood risk. Published flood models are held over parts of Green Island; the free check on the Flood Model Report page says whether one reaches a given address.
Is Green Island bushfire-prone?
Bushfire mapping covers Green Island and little to none of it is mapped as bushfire-prone (the Cairns Regional average is 23%).
Is Green Island under a flight path?
No aircraft were observed over Green Island in the period sampled (recent weeks to now). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Green Island?
The dominant planning zone in Green Island is Conservation, though the suburb also includes Tourist Accommodation and Special Purpose.
Does Green Island have heritage-listed places?
Green Island has 1 heritage-listed place on record.
Is Green Island hilly or flat?
Green Island is largely flat: the median ground slope is about 2%. Ground level runs from roughly 0 m to 4 m AHD across the suburb.
What is the typical lot size in Green Island?
Across 6 surveyed parcels in Green Island, the median lot size is about 8,981 m². There are also 2 registered easements mapped in the suburb.
Is Green Island an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Green Island scores 1026 and sits in decile 8 of 10 nationally and decile 9 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Fitzroy Island | 19.1 km | 2% | 23% |
| Glen Boughton | 25.7 km | 54% | 80% |
| Aeroglen | 25.8 km | 74% | 10% |
| Machans Beach | 25.9 km | 68% | 20% |
| Holloways Beach | 26.5 km | 81% | 15% |
| Cairns North | 27.0 km | 52% | <1% |
| East Trinity | 27.1 km | 41% | 45% |
| Cairns City | 27.5 km | 65% | 0% |
| Yorkeys Knob | 28.0 km | 87% | 15% |
| Parramatta Park | 28.7 km | 100% | 10% |