The Gap flood map & planning overlays
A planning-constraint profile of The Gap
(Mount Isa City, QLD) - 0.68 km², mapped from live council and
state overlay data. This suburb is relatively unconstrained.
Profile updated 12 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
0.68 km² - this suburb is relatively unconstrained by planning overlays.
Elevation hillshade with street names, clipped to The Gap's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across The Gap properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 562 The Gap properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 562 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in The Gap.
The Gap at a glance
Schools in and near The Gap
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: 0.41 km from the suburb boundary
Secondary: 0.16 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 The Gap is zoned
Selling in The Gap? 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 0.68 km², The Gap is relatively unconstrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay. There are 2 heritage-listed sites on record, and the dominant land-use zone is Medium Density Residential. The terrain is largely flat, and the median lot measures about 1,012 m² across 408 parcels.
Who lives in The Gap
Census 2021 figures published by the ABS for the The Gap 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 958, and decile 5 within Queensland. The national average is 1000.
Age profile
Share of The Gap's 817 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Mount Isa, the wider ABS statistical area containing The Gap. There is no annual population series published at suburb level, so this describes the surrounding area rather than The Gap itself.
20,262 in 2001 to 18,162 in 2025, down 10%.
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.
The Gap 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 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 The Gap 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 The Gap lot.
See what's in the $9 report →The Gap planning - frequently asked
Is The Gap flood-prone?
Flood mapping covers The Gap and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 13%). Across the suburb, 0% of the 562 properties we analysed carry some level of mapped flood risk.
Is The Gap bushfire-prone?
Bushfire mapping covers The Gap and little to none of it is mapped as bushfire-prone (the Mount Isa City average is 36%).
What is the zoning in The Gap?
The dominant planning zone in The Gap is Medium Density Residential, though the suburb also includes Mixed Use and Open Space.
Does The Gap have heritage-listed places?
The Gap has 2 heritage-listed places on record.
Is The Gap hilly or flat?
The Gap is largely flat: the median ground slope is about 4%, and 17% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 352 m to 370 m AHD across the suburb.
What is the typical lot size in The Gap?
Across 408 surveyed parcels in The Gap, the median lot size is about 1,012 m². There are also 12 registered easements mapped in the suburb.
What is the population of The Gap?
At the 2021 Census The Gap had 817 usual residents, with a median age of 33 and an average household size of 2.2 people. The wider Mount Isa statistical area, which contains The Gap, went from 20,262 people in 2001 to 18,162 in 2025, down 10%.
Is The Gap an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), The Gap scores 958 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 The Gap?
Median household income in The Gap was $1,987 a week at the 2021 Census, against $2,177 for the typical suburb in Mount Isa City. Median rent was $255 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Mount Isa City | 0.6 km | 5% | 0% |
| Menzies | 0.9 km | 3% | 0% |
| Townview | 1.0 km | 0% | 13% |
| Mornington | 1.0 km | 6% | 0% |
| Pioneer | 1.1 km | 4% | 6% |
| Miles End | 1.3 km | 44% | 16% |
| Parkside | 1.7 km | 31% | 2% |
| Sunset | 1.8 km | 8% | 50% |
| Winston | 1.8 km | 16% | 13% |
| Soldiers Hill | 2.4 km | 29% | 15% |