Deagon flood map & planning overlays
A planning-constraint profile of Deagon (Brisbane City, QLD) - 3.01 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
3.01 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Deagon'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.
Deagon 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 2,199 Deagon properties.
Lot-level readout
Flood-risk rating across all 2,199 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Deagon.
Deagon at a glance
How Deagon is zoned
Selling in Deagon? 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 3.01 km², Deagon is highly constrained by planning overlays. About 48% of the suburb sits within a mapped flood overlay, and 4% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Low density residential. The terrain is largely flat, and the median lot measures about 461 m² across 1,969 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 Deagon
Census 2021 figures published by the ABS for the Deagon 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 998, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Deagon's 3,773 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Deagon, the wider ABS statistical area containing Deagon. There is no annual population series published at suburb level, so this describes the surrounding area rather than Deagon itself.
3,197 in 2001 to 4,034 in 2025, up 26%.
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 Deagon 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 →Deagon planning - frequently asked
Where can I see a flood map of Deagon?
The schematic on this page is a Deagon flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 48% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Deagon address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Deagon flood-prone?
About 48% of Deagon falls within a mapped flood overlay, against a Brisbane City average of 40%. Looking lot by lot, 51% of the 2,199 properties we analysed in Deagon carry some level of mapped flood risk, including 469 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 Deagon bushfire-prone?
Yes - around 4% of Deagon is mapped as bushfire-prone, compared with a Brisbane City average of 27%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Deagon?
The dominant planning zone in Deagon is Low density residential, though the suburb also includes Sport and recreation (Metropolitan) and Sport and recreation (District). Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Deagon have heritage-listed places?
Deagon has 5 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 Deagon hilly or flat?
Deagon is largely flat: the median lot slope is about 1%. Ground level runs from roughly 2 m to 6 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 Deagon?
Across 1,969 surveyed parcels in Deagon, the median lot size is about 461 m². There are also 69 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.
Does Deagon have a train station?
Yes - Deagon has 1 train station: Deagon station. It is also served by 26 bus stops.
What is the population of Deagon?
At the 2021 Census Deagon had 3,773 usual residents, with a median age of 42 and an average household size of 2.3 people. The wider Deagon statistical area, which contains Deagon, went from 3,197 people in 2001 to 4,034 in 2025, up 26%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Deagon alone.
Is Deagon an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Deagon scores 998 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 Deagon?
Median household income in Deagon was $1,605 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $350 a week and the median mortgage repayment $1,846 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Deagon property?
A Deagon 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.