Dulong flood map & planning overlays
A planning-constraint profile of Dulong (Sunshine Coast Regional, QLD) - 11.21 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
11.21 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Dulong'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.
Dulong 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 327 Dulong properties.
Lot-level readout
Flood-risk rating across all 327 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Dulong.
Dulong at a glance
How Dulong is zoned
Selling in Dulong? 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 11.21 km², Dulong is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 25% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is hilly, and the median lot measures about 7,998 m² across 328 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 Dulong
Census 2021 figures published by the ABS for the Dulong 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 1038, and decile 9 within Queensland. The national average is 1000.
Age profile
Share of Dulong's 688 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Maroochy Hinterland, the wider ABS statistical area containing Dulong. There is no annual population series published at suburb level, so this describes the surrounding area rather than Dulong itself.
5,489 in 2001 to 7,415 in 2025, up 35%.
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 Dulong 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 →Dulong planning - frequently asked
Where can I see a flood map of Dulong?
The schematic on this page is a Dulong 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 Dulong address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Dulong flood-prone?
Flood mapping covers Dulong and none of the suburb falls within a mapped flood overlay (the Sunshine Coast Regional average is 32%). Looking lot by lot, 0% of the 327 properties we analysed in Dulong 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 Dulong bushfire-prone?
Yes - around 25% of Dulong is mapped as bushfire-prone, compared with a Sunshine Coast Regional average of 38%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Dulong?
The dominant planning zone in Dulong is Rural, though the suburb also includes Rural Residential and Environmental Management and Conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Dulong have heritage-listed places?
No heritage-listed places are on record within Dulong. Even so, it is worth confirming for an individual property before any works.
Is Dulong hilly or flat?
Dulong is hilly: the median lot slope is about 16%, and 57% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 135 m to 316 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 Dulong?
Across 328 surveyed parcels in Dulong, the median lot size is about 7,998 m². There are also 101 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 Dulong?
At the 2021 Census Dulong had 688 usual residents, with a median age of 49 and an average household size of 2.6 people. The wider Maroochy Hinterland statistical area, which contains Dulong, went from 5,489 people in 2001 to 7,415 in 2025, up 35%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Dulong alone.
Is Dulong an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Dulong scores 1038 and sits in decile 8 of 10 nationally and decile 9 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 Dulong?
Median household income in Dulong was $1,767 a week at the 2021 Census, against $1,674 for the typical suburb in Sunshine Coast Regional. Median rent was $380 a week and the median mortgage repayment $2,100 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Dulong property?
A Dulong 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.