Irvingdale flood map & planning overlays
A planning-constraint profile of Irvingdale (Toowoomba Regional, QLD) - 99.04 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
99.04 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Irvingdale'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.
Irvingdale 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 174 Irvingdale properties.
Lot-level readout
Flood-risk rating across all 174 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Irvingdale.
Irvingdale at a glance
How Irvingdale is zoned
Selling in Irvingdale? 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 99.04 km², Irvingdale is moderately constrained by planning overlays. About 23% of the suburb sits within a mapped flood overlay, and 2% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is largely flat, and the median lot measures about 407,792 m² across 173 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 Irvingdale
Census 2021 figures published by the ABS for the Irvingdale 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 962, and decile 5 within Queensland. The national average is 1000.
Age profile
Share of Irvingdale's 163 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Crows Nest - Rosalie, the wider ABS statistical area containing Irvingdale. There is no annual population series published at suburb level, so this describes the surrounding area rather than Irvingdale 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 Irvingdale 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 →Irvingdale planning - frequently asked
Where can I see a flood map of Irvingdale?
The schematic on this page is a Irvingdale flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 23% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Irvingdale address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Irvingdale flood-prone?
About 23% of Irvingdale falls within a mapped flood overlay, against a Toowoomba Regional average of 13%. Looking lot by lot, 0% of the 174 properties we analysed in Irvingdale 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 Irvingdale bushfire-prone?
Yes - around 2% of Irvingdale 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 Irvingdale?
The dominant planning zone in Irvingdale is Rural, though the suburb also includes Unzoned and Community Facilities. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Irvingdale have heritage-listed places?
No heritage-listed places are on record within Irvingdale. Even so, it is worth confirming for an individual property before any works.
Is Irvingdale hilly or flat?
Irvingdale is largely flat: the median lot slope is about 1%. Ground level runs from roughly 373 m to 449 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 Irvingdale?
Across 173 surveyed parcels in Irvingdale, the median lot size is about 407,792 m². There are also 1 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 Irvingdale?
At the 2021 Census Irvingdale had 163 usual residents, with a median age of 43 and an average household size of 2.4 people. The wider Crows Nest - Rosalie statistical area, which contains Irvingdale, 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 Irvingdale alone.
Is Irvingdale an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Irvingdale scores 962 and sits in decile 4 of 10 nationally and decile 5 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 Irvingdale?
Median household income in Irvingdale was $1,812 a week at the 2021 Census, against $1,583 for the typical suburb in Toowoomba Regional. Median rent was $150 a week and the median mortgage repayment $2,400 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Irvingdale property?
A Irvingdale 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.