Blackrock flood map & planning overlays
A planning-constraint profile of Blackrock
(Hinchinbrook Shire, QLD) - 63.36 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
63.36 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Blackrock's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Blackrock properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 247 Blackrock properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 247 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Blackrock.
Blackrock at a glance
Schools in and near Blackrock
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: 0.47 km from the suburb boundary
Secondary: 1.34 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 Blackrock is zoned
Selling in Blackrock? 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 63.36 km², Blackrock is highly constrained by planning overlays. About 100% of the suburb sits within a mapped flood overlay, and 12% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 62,073 m² across 256 parcels.
Who lives in Blackrock
Census 2021 figures published by the ABS for the Blackrock 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 960, and decile 5 within Queensland. The national average is 1000.
Age profile
Share of Blackrock's 319 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Ingham Surrounds, the wider ABS statistical area containing Blackrock. There is no annual population series published at suburb level, so this describes the surrounding area rather than Blackrock itself.
7,200 in 2001 to 6,723 in 2025, down 7%.
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.
Blackrock 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 Blackrock 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 Blackrock. 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 Blackrock lot.
See what's in the $9 report →Blackrock planning - frequently asked
Is Blackrock flood-prone?
About 100% of Blackrock falls within a mapped flood overlay, against the council-wide suburb average of 67%. Across the suburb, 94% of the 247 properties we analysed carry some level of mapped flood risk, including 125 rated high risk or historically affected.
Is Blackrock bushfire-prone?
Around 12% of Blackrock is mapped as bushfire-prone, compared with a Hinchinbrook Shire average of 36%.
What is the zoning in Blackrock?
The dominant planning zone in Blackrock is Rural, though the suburb also includes Community Facilities and General Residential.
Does Blackrock have heritage-listed places?
No heritage-listed places are on record within Blackrock.
Is Blackrock hilly or flat?
Blackrock is largely flat: the median ground slope is about 1%, and 2% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 3 m to 21 m AHD across the suburb.
What is the typical lot size in Blackrock?
Across 256 surveyed parcels in Blackrock, the median lot size is about 62,073 m². There are also 46 registered easements mapped in the suburb.
What is the population of Blackrock?
At the 2021 Census Blackrock had 319 usual residents, with a median age of 42 and an average household size of 2.6 people. The wider Ingham Surrounds statistical area, which contains Blackrock, went from 7,200 people in 2001 to 6,723 in 2025, down 7%.
Is Blackrock an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Blackrock scores 960 and sits in decile 4 of 10 nationally and decile 5 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Blackrock?
Median household income in Blackrock was $1,963 a week at the 2021 Census, against $1,525 for the typical suburb in Hinchinbrook Shire. Median rent was $190 a week and the median mortgage repayment $1,192 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Victoria Plantation | 6.6 km | 100% | 15% |
| Toobanna | 7.4 km | 100% | 16% |
| Forrest Beach | 7.7 km | 68% | 24% |
| Braemeadows | 8.0 km | 100% | 11% |
| Ingham | 8.3 km | 100% | 9% |
| Foresthome | 10.2 km | 100% | 1% |
| Cordelia | 11.2 km | 100% | 19% |
| Gairloch | 11.5 km | 100% | 22% |
| Orient | 11.6 km | 82% | 36% |
| Helens Hill | 13.0 km | 79% | 43% |