Captains Mountain flood map & planning overlays
A planning-constraint profile of Captains Mountain (Toowoomba Regional, QLD) - 173.41 km², mapped from live council and state overlay data. This suburb is highly constrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
173.41 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Captains Mountain's boundary, with the flood, bushfire and environmental overlays drawn on top. It shows where constraints fall; the interactive map shows them on your exact address.
Captains Mountain flood risk at the property level
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched, from our lot-by-lot analysis of 84 Captains Mountain properties.
Lot-level readout
Flood-risk rating across all 84 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Captains Mountain.
Captains Mountain at a glance
How Captains Mountain is zoned
Selling in Captains Mountain? 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 173.41 km², Captains Mountain is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 11% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 1,421,446 m² across 79 parcels. These figures are suburb-wide - the overlays that actually apply to a given lot can differ block to block, which is what a property-level check tells you.
Who lives in Captains Mountain
Census 2021 figures published by the ABS for the Captains Mountain 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 994, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Captains Mountain's 74 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Millmerran, the wider ABS statistical area containing Captains Mountain. There is no annual population series published at suburb level, so this describes the surrounding area rather than Captains Mountain itself.
3,413 in 2001 to 3,351 in 2025, down 2%.
Source: Australian Bureau of Statistics. Census of Population and Housing 2021 (General Community Profile) and SEIFA 2021, both published at the Suburbs and Localities level; Regional Population (estimated resident population) at Statistical Area Level 2. Used under CC BY 4.0. Census counts of small populations are randomly adjusted by the ABS to protect confidentiality, so figures for small suburbs are indicative.
Check a specific Captains Mountain 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.
See what's in the $9 report →Captains Mountain planning - frequently asked
Where can I see a flood map of Captains Mountain?
The schematic on this page is a Captains Mountain flood map: the mapped flood overlays drawn over the suburb's terrain and street grid. Flood lines vary block to block, so for a specific property use the free interactive map - search any Captains Mountain address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Captains Mountain flood-prone?
Flood mapping covers Captains Mountain and none of the suburb falls within a mapped flood overlay (the Toowoomba Regional average is 13%). Looking lot by lot, 0% of the 84 properties we analysed in Captains Mountain carry some level of mapped flood risk. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Captains Mountain bushfire-prone?
Yes - around 11% of Captains Mountain is mapped as bushfire-prone, compared with a Toowoomba Regional average of 20%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Captains Mountain?
The dominant planning zone in Captains Mountain is Rural, though the suburb also includes Open Space and Unzoned. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Captains Mountain have heritage-listed places?
No heritage-listed places are on record within Captains Mountain. Even so, it is worth confirming for an individual property before any works.
Is Captains Mountain hilly or flat?
Captains Mountain is largely flat: the median lot slope is about 2%, and 1% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 399 m to 542 m AHD across the suburb. Slope drives site costs - cut and fill, retaining walls and driveway grades - so it is worth knowing before you commit to a sloping block.
What is the typical lot size in Captains Mountain?
Across 79 surveyed parcels in Captains Mountain, the median lot size is about 1,421,446 m². There are also 12 registered easements mapped in the suburb - an easement can restrict where you can build, so always check the title and overlays for the specific lot.
What is the population of Captains Mountain?
At the 2021 Census Captains Mountain had 74 usual residents, with a median age of 50 and an average household size of 2.6 people. The wider Millmerran statistical area, which contains Captains Mountain, went from 3,413 people in 2001 to 3,351 in 2025, down 2%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Captains Mountain alone.
Is Captains Mountain an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Captains Mountain scores 994 and sits in decile 6 of 10 nationally and decile 7 within Queensland - decile 1 being the most disadvantaged tenth of Australian suburbs and decile 10 the least. The national average score is 1000. SEIFA summarises income, education, occupation and housing across the whole suburb, so it describes the area, not any particular household in it.
What is the median household income in Captains Mountain?
Median household income in Captains Mountain was $1,312 a week at the 2021 Census, against $1,583 for the typical suburb in Toowoomba Regional. Median rent was $200 a week and the median mortgage repayment $2,253 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Captains Mountain property?
A Captains Mountain planning report pulls every overlay - zoning, flood, bushfire, heritage and environmental - that touches a single lot, on live council and state data. The interactive map preview is free; a full PDF report is $9.