Curtis Island flood map & planning overlays
72.7% under environmental overlays, mostly protected estate, and 5 heritage-listed places.
Things you won't regret: spending $9 to know the lot before you commit.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Curtis Island
(Gladstone Regional, QLD) - 616.44 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
616.44 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Curtis Island's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Curtis 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 4 Sep to 7 Nov 2026
typical observed square 1 a day
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.
Curtis Island at a glance
Schools in and near Curtis 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: 5.63 km from the suburb boundary
Secondary: 6.14 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 Curtis Island is zoned
Selling in Curtis 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 616.44 km², Curtis Island is highly constrained by planning overlays. About 37% of the suburb sits within a mapped flood overlay, and 72% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Environmental Management. The median lot measures about 1,816 m² across 289 parcels.
Who lives in Curtis Island
Census 2021 figures published by the ABS for the Curtis 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 976, and decile 6 within Queensland. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Gladstone Hinterland, the wider ABS statistical area containing Curtis Island. There is no annual population series published at suburb level, so this describes the surrounding area rather than Curtis Island itself.
6,952 in 2001 to 12,274 in 2025, up 77%.
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.
Curtis 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 7 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 Curtis 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 →Aircraft have been seen below 3,000 ft over about 6% of Curtis Island. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of Curtis Island. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$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 Curtis Island lot.
Curtis Island planning - frequently asked
Is Curtis Island flood-prone?
About 37% of Curtis Island falls within a mapped flood overlay, against the council-wide suburb average of 48%. Published flood models are held over parts of Curtis Island; the free check on the Flood Model Report page says whether one reaches a given address.
Is Curtis Island bushfire-prone?
Around 72% of Curtis Island is mapped as bushfire-prone, compared with a Gladstone Regional average of 64%.
Is Curtis Island under a flight path?
Aircraft were observed below 3,000 ft over about 6% of Curtis Island, and over about 7% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 500 ft, with an average of 2,500 ft. At the busiest point in the suburb about 2 aircraft a day were recorded passing over one 500 m square. 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 Curtis Island?
The dominant planning zone in Curtis Island is Environmental Management, though the suburb also includes Conservation and Rural.
Does Curtis Island have heritage-listed places?
Curtis Island has 5 heritage-listed places on record.
What is the typical lot size in Curtis Island?
Across 289 surveyed parcels in Curtis Island, the median lot size is about 1,816 m². There are also 4 registered easements mapped in the suburb.
Is Curtis Island an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Curtis Island 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).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Targinnie | 13.8 km | 59% | 70% |
| Mount Larcom | 19.8 km | 42% | 81% |
| The Narrows | 20.0 km | 84% | 29% |
| Yarwun | 21.2 km | 65% | 69% |
| Darts Creek | 22.2 km | 33% | 76% |
| Callemondah | 24.4 km | 95% | 12% |
| Gladstone Harbour | 25.5 km | 77% | 21% |
| Aldoga | 25.9 km | 45% | 83% |
| Gladstone Central | 26.5 km | 72% | <1% |
| Barney Point | 27.9 km | 88% | 0% |