Alton Downs flood map & planning overlays
A planning-constraint profile of Alton Downs
(Rockhampton Regional, QLD) - 177.08 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 19 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
177.08 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Alton Downs's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Alton Downs properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 863 Alton Downs properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 863 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Alton Downs.
Alton Downs flood history and overland flow
These are suburb-wide totals across 863 analysed properties. They show how common each mapped category is across Alton Downs; they do not identify or describe any individual property.
Recorded historical flood mapping
261 analysed properties intersect at least one mapped historical event extent.
- Historic Flood 2011: 261
- Historic Flood 2017: 244
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.
Alton Downs at a glance
Schools in and near Alton Downs
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: 6.03 km from the suburb boundary
Secondary: 6.25 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 Alton Downs is zoned
Selling in Alton Downs? 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 177.08 km², Alton Downs is highly constrained by planning overlays. About 74% of the suburb sits within a mapped flood overlay, and 20% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 138,358 m² across 768 parcels.
Who lives in Alton Downs
Census 2021 figures published by the ABS for the Alton Downs 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 986, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Alton Downs's 1,324 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Rockhampton Surrounds - West, the wider ABS statistical area containing Alton Downs. There is no annual population series published at suburb level, so this describes the surrounding area rather than Alton Downs itself.
2,720 in 2001 to 3,226 in 2025, up 19%.
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.
Alton Downs 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 Alton Downs 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 Alton Downs. 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 Alton Downs lot.
See what's in the $9 report →Alton Downs planning - frequently asked
Is Alton Downs flood-prone?
About 74% of Alton Downs falls within a mapped flood overlay, against the council-wide suburb average of 53%. Across the suburb, 20% of the 863 properties we analysed carry some level of mapped flood risk, including 140 rated high risk or historically affected.
Is Alton Downs bushfire-prone?
Around 20% of Alton Downs is mapped as bushfire-prone, compared with a Rockhampton Regional average of 55%.
What is the zoning in Alton Downs?
The dominant planning zone in Alton Downs is Rural, though the suburb also includes Environmental management and conservation and Sport and recreation.
Does Alton Downs have heritage-listed places?
No heritage-listed places are on record within Alton Downs.
Is Alton Downs hilly or flat?
Alton Downs is largely flat: the median ground slope is about 2%. Ground level runs from roughly 7 m to 56 m AHD across the suburb.
What is the typical lot size in Alton Downs?
Across 768 surveyed parcels in Alton Downs, the median lot size is about 138,358 m². There are also 119 registered easements mapped in the suburb.
What is the population of Alton Downs?
At the 2021 Census Alton Downs had 1,324 usual residents, with a median age of 41 and an average household size of 2.8 people. The wider Rockhampton Surrounds - West statistical area, which contains Alton Downs, went from 2,720 people in 2001 to 3,226 in 2025, up 19%.
Is Alton Downs an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Alton Downs scores 986 and sits in decile 5 of 10 nationally and decile 7 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Alton Downs?
Median household income in Alton Downs was $2,077 a week at the 2021 Census, against $1,327 for the typical suburb in Rockhampton Regional. Median rent was $330 a week and the median mortgage repayment $1,863 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Etna Creek Livingstone Shire |
9.9 km | 79% | 45% |
| Pink Lily | 9.9 km | 100% | 33% |
| Glenlee Livingstone Shire |
10.4 km | 76% | 35% |
| Nine Mile | 11.2 km | 47% | 46% |
| Glendale Livingstone Shire |
11.4 km | 47% | 19% |
| South Yaamba | 12.2 km | 94% | 30% |
| Ridgelands | 12.4 km | 45% | 24% |
| Fairy Bower | 13.1 km | 100% | 16% |
| West Rockhampton | 13.2 km | 96% | 4% |
| Parkhurst | 13.2 km | 60% | 34% |