Port Alma flood map & planning overlays
The flattest suburb in Rockhampton Regional: Port Alma, 0.3% median slope.
Most lots here are flood-mapped. The free check shows how much of one lot the overlay covers.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Port Alma
(Rockhampton Regional, QLD) - 312.79 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
312.79 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Port Alma'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
How common is mapped flood risk across Port Alma properties?
Counts of properties, not share of land, across 23 analysed Port Alma properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 23 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Port Alma.
Has Port Alma flooded? Flood history and overland flow
Yes. Recorded flood mapping reaches into Port Alma: 22 of the 23 properties we analysed (95.7%) sit at least partly inside a mapped historical flood extent (Historic Flood 2017: 22, Historic Flood 2011: 9). The free address check says whether a given lot is inside one.
Suburb-wide totals across 23 analysed properties; they do not identify or describe any individual property.
Recorded historical flood mapping
22 analysed properties intersect at least one mapped historical event extent.
- Historic Flood 2017: 22
- Historic Flood 2011: 9
Source: Rockhampton Regional Council flood mapping, aggregated by LayeredGeo. Categories are only shown where at least five analysed properties share them. An address-level check is still required to determine whether a particular lot is mapped.
Aircraft noise and flight paths over Port Alma
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 0 a day
Night movements: observed, lowest 2,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Port Alma at a glance
Schools in and near Port Alma
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: 3.38 km from the suburb boundary
Secondary: 18.97 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 Port Alma is zoned
Selling in Port Alma? 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 312.79 km², Port Alma is highly constrained by planning overlays. About 100% of the suburb sits within a mapped flood overlay, and 1% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 268,219 m² across 96 parcels.
Port Alma 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 | Not 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 Port Alma 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 4% of Port Alma. 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 Port Alma. 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).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Port Alma lot.
Port Alma planning - frequently asked
Is Port Alma flood-prone?
About 100% of Port Alma falls within a mapped flood overlay, against the council-wide suburb average of 53%. Across the suburb, 100% of the 23 properties we analysed carry some level of mapped flood risk, including 23 rated high risk or historically affected. Published flood models are held over parts of Port Alma; the free check on the Flood Model Report page says whether one reaches a given address.
Has Port Alma flooded?
Yes. Recorded flood mapping reaches into Port Alma: 22 of the 23 properties we analysed (95.7%) sit at least partly inside a mapped historical flood extent (Historic Flood 2017: 22, Historic Flood 2011: 9). The free address check says whether a given lot is inside one.
Is Port Alma bushfire-prone?
Around 1% of Port Alma is mapped as bushfire-prone, compared with a Rockhampton Regional average of 49%.
Is Port Alma under a flight path?
Aircraft were observed below 3,000 ft over about 4% of Port Alma, and over about 38% 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 1,000 ft, with an average of 5,500 ft. At the busiest point in the suburb about 1 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 Port Alma?
The dominant planning zone in Port Alma is Rural, though the suburb also includes Special purpose.
Does Port Alma have heritage-listed places?
No heritage-listed places are on record within Port Alma.
Is Port Alma hilly or flat?
Port Alma is largely flat: the median ground slope is about 0%. Ground level runs from roughly -2 m to 4 m AHD across the suburb.
What is the typical lot size in Port Alma?
Across 96 surveyed parcels in Port Alma, the median lot size is about 268,219 m². There are also 3 registered easements mapped in the suburb.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Thompson Point Livingstone Shire |
12.8 km | 69% | 30% |
| Marmor | 14.1 km | 58% | 30% |
| The Narrows Gladstone Regional |
17.7 km | 84% | 29% |
| Nankin Livingstone Shire |
19.5 km | 57% | 56% |
| Midgee | 20.9 km | 83% | 30% |
| Joskeleigh Livingstone Shire |
22.5 km | 53% | 30% |
| Bajool | 23.0 km | 59% | 50% |
| Darts Creek Gladstone Regional |
24.3 km | 33% | 76% |
| Raglan Gladstone Regional |
26.2 km | 39% | 61% |
| Nerimbera Livingstone Shire |
26.3 km | 68% | 51% |