Thornton flood map & planning overlays
A planning-constraint profile of Thornton
(Lockyer Valley Regional, QLD) - 95.41 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
95.41 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Thornton's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Thornton at a glance
Schools in and near Thornton
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
1 school providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: 12.36 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 Thornton is zoned
Selling in Thornton? 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 95.41 km², Thornton is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 80% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 211,249 m² across 229 parcels.
Who lives in Thornton
Census 2021 figures published by the ABS for the Thornton 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 992, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Thornton's 214 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lockyer Valley - East, the wider ABS statistical area containing Thornton. There is no annual population series published at suburb level, so this describes the surrounding area rather than Thornton itself.
13,192 in 2001 to 24,138 in 2025, up 83%.
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.
Thornton 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 Thornton 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 Thornton. 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 an indicative AS 2870 site class for a Thornton lot.
See what's in the $9 report →Thornton planning - frequently asked
Is Thornton flood-prone?
Flood mapping covers Thornton and none of the suburb falls within a mapped flood overlay.
Is Thornton bushfire-prone?
Around 80% of Thornton is mapped as bushfire-prone, compared with a Lockyer Valley Regional average of 63%.
What is the zoning in Thornton?
The dominant planning zone in Thornton is Rural, though the suburb also includes Conservation and Open Space.
Does Thornton have heritage-listed places?
No heritage-listed places are on record within Thornton.
What is the typical lot size in Thornton?
Across 229 surveyed parcels in Thornton, the median lot size is about 211,249 m². There are also 27 registered easements mapped in the suburb.
What is the population of Thornton?
At the 2021 Census Thornton had 214 usual residents, with a median age of 49 and an average household size of 2.4 people. The wider Lockyer Valley - East statistical area, which contains Thornton, went from 13,192 people in 2001 to 24,138 in 2025, up 83%.
Is Thornton an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Thornton scores 992 and sits in decile 6 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 Thornton?
Median household income in Thornton was $1,678 a week at the 2021 Census, against $1,521 for the typical suburb in Lockyer Valley Regional. Median rent was $210 a week and the median mortgage repayment $1,500 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Mount Mort Ipswich City |
7.6 km | 8% | 77% |
| Mulgowie | 8.4 km | 0% | 73% |
| Mount Berryman | 9.2 km | Not mapped | 72% |
| Lefthand Branch | 10.0 km | Not mapped | 91% |
| Ingoldsby | 10.2 km | Not mapped | 72% |
| Townson | 12.3 km | 0% | 94% |
| Merryvale Scenic Rim Regional |
12.3 km | 0% | 42% |
| East Haldon | 13.0 km | 0% | 93% |
| Rockside | 13.1 km | Not mapped | 68% |
| Mount Walker West Ipswich City |
13.2 km | 0% | 47% |