Calcium flood map & planning overlays
A planning-constraint profile of Calcium
(Townsville City, QLD) - 130.38 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 12 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
130.38 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Calcium's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Calcium properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 73 Calcium properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 73 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Calcium.
Calcium at a glance
Schools in and near Calcium
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: 1.19 km from the suburb boundary
Secondary: 29.19 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 Calcium is zoned
Selling in Calcium? 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 130.38 km², Calcium is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 85% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Conservation. The terrain is largely flat, and the median lot measures about 357,486 m² across 91 parcels.
Recent development applications in Calcium
Applications are counted across the whole gazetted suburb from the public Townsville City Council register. No application address or individual property is published here.
Submitted in the past 12 months
The exact total and latest date are suppressed for privacy.
Counts depend on applications that the council publishes and that can be assigned to a suburb. Categories can overlap when one application covers several types. Totals below five and their latest dates are suppressed. Register last synchronised 17 September 2026. Check the official council register.
Who lives in Calcium
Census 2021 figures published by the ABS for the Calcium 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 953, and decile 5 within Queensland. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Townsville - South, the wider ABS statistical area containing Calcium. There is no annual population series published at suburb level, so this describes the surrounding area rather than Calcium itself.
3,576 in 2001 to 5,861 in 2025, up 64%.
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.
Calcium 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 |
| Development applications | Available as suburb totals | Townsville City Council |
Profile last materially updated 12 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 Calcium 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.
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 Calcium lot.
See what's in the $9 report →Calcium planning - frequently asked
Is Calcium flood-prone?
Flood mapping covers Calcium and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 39%). Across the suburb, 0% of the 73 properties we analysed carry some level of mapped flood risk.
Is Calcium bushfire-prone?
Around 85% of Calcium is mapped as bushfire-prone, compared with a Townsville City average of 50%.
What is the zoning in Calcium?
The dominant planning zone in Calcium is Conservation, though the suburb also includes Rural and High Impact Industry.
Does Calcium have heritage-listed places?
Calcium has 2 heritage-listed places on record.
Is Calcium hilly or flat?
Calcium is largely flat: the median ground slope is about 3%, and 19% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 72 m to 307 m AHD across the suburb.
What is the typical lot size in Calcium?
Across 91 surveyed parcels in Calcium, the median lot size is about 357,486 m². There are also 16 registered easements mapped in the suburb.
Is Calcium an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Calcium scores 953 and sits in decile 4 of 10 nationally and decile 5 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Woodstock | 10.9 km | 14% | 63% |
| Barringha | 14.7 km | 0% | 69% |
| Reid River | 16.8 km | 36% | 93% |
| Granite Vale | 19.5 km | <1% | 98% |
| Toonpan | 19.8 km | 0% | 90% |
| Majors Creek | 20.1 km | 27% | 77% |
| Ross River | 20.3 km | 0% | 28% |
| Mount Elliot | 25.0 km | <1% | 100% |
| Pinnacles | 26.9 km | 0% | 74% |
| Brookhill | 27.9 km | 0% | 87% |