Maclagan flood map & planning overlays
A planning-constraint profile of Maclagan (Toowoomba Regional, QLD) - 76.41 km², mapped from live council and state overlay data. This suburb is moderately constrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
76.41 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Maclagan'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.
Maclagan 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 162 Maclagan properties.
Lot-level readout
Flood-risk rating across all 162 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Maclagan.
Maclagan at a glance
How Maclagan is zoned
Selling in Maclagan? 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 76.41 km², Maclagan is moderately constrained by planning overlays. About 10% of the suburb sits within a mapped flood overlay, and 14% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 123,506 m² across 169 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 Maclagan
Census 2021 figures published by the ABS for the Maclagan 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 927, and decile 3 within Queensland. The national average is 1000.
Age profile
Share of Maclagan's 130 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Crows Nest - Rosalie, the wider ABS statistical area containing Maclagan. There is no annual population series published at suburb level, so this describes the surrounding area rather than Maclagan itself.
7,766 in 2001 to 9,824 in 2025, up 27%.
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 Maclagan 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 →Maclagan planning - frequently asked
Where can I see a flood map of Maclagan?
The schematic on this page is a Maclagan flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 10% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Maclagan address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Maclagan flood-prone?
About 10% of Maclagan falls within a mapped flood overlay, against a Toowoomba Regional average of 13%. Looking lot by lot, 49% of the 162 properties we analysed in Maclagan carry some level of mapped flood risk, including 24 rated high risk or historically affected. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Maclagan bushfire-prone?
Yes - around 14% of Maclagan 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 Maclagan?
The dominant planning zone in Maclagan is Rural, though the suburb also includes Township and Unzoned. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Maclagan have heritage-listed places?
Maclagan has 2 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.
Is Maclagan hilly or flat?
Maclagan is gently undulating: the median lot slope is about 5%, and 11% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 452 m to 649 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 Maclagan?
Across 169 surveyed parcels in Maclagan, the median lot size is about 123,506 m².
What is the population of Maclagan?
At the 2021 Census Maclagan had 130 usual residents, with a median age of 46 and an average household size of 2.4 people. The wider Crows Nest - Rosalie statistical area, which contains Maclagan, went from 7,766 people in 2001 to 9,824 in 2025, up 27%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Maclagan alone.
Is Maclagan an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Maclagan scores 927 and sits in decile 2 of 10 nationally and decile 3 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 Maclagan?
Median household income in Maclagan was $1,300 a week at the 2021 Census, against $1,583 for the typical suburb in Toowoomba Regional. Median rent was $188 a week and the median mortgage repayment $650 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Maclagan property?
A Maclagan 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.