Mount Samson flood map & planning overlays
A planning-constraint profile of Mount Samson (Moreton Bay City, QLD) - 18.4 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
18.4 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Samson'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.
Mount Samson 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 245 Mount Samson properties.
Lot-level readout
Flood-risk rating across all 245 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Mount Samson.
Mount Samson at a glance
How Mount Samson is zoned
Selling in Mount Samson? 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 18.4 km², Mount Samson is highly constrained by planning overlays. About 28% of the suburb sits within a mapped flood overlay, and 76% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Rural. The terrain is hilly, and the median lot measures about 21,438 m² across 246 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 Mount Samson
Census 2021 figures published by the ABS for the Mount Samson 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 1096, and decile 10 within Queensland. The national average is 1000.
Age profile
Share of Mount Samson's 625 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Dayboro, the wider ABS statistical area containing Mount Samson. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Samson itself.
5,554 in 2001 to 10,103 in 2025, up 82%.
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 Mount Samson 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 →Mount Samson planning - frequently asked
Where can I see a flood map of Mount Samson?
The schematic on this page is a Mount Samson flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 28% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Mount Samson address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Mount Samson flood-prone?
About 28% of Mount Samson falls within a mapped flood overlay, against a Moreton Bay City average of 37%. Looking lot by lot, 24% of the 245 properties we analysed in Mount Samson carry some level of mapped flood risk, including 48 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 Mount Samson bushfire-prone?
Yes - around 76% of Mount Samson is mapped as bushfire-prone, compared with a Moreton Bay City average of 59%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Mount Samson?
The dominant planning zone in Mount Samson is Rural, though the suburb also includes Community facilities and Limited development. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Mount Samson have heritage-listed places?
Mount Samson has 4 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 Mount Samson hilly or flat?
Mount Samson is hilly: the median lot slope is about 13%, and 39% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 49 m to 157 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 Mount Samson?
Across 246 surveyed parcels in Mount Samson, the median lot size is about 21,438 m². There are also 45 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 Mount Samson?
At the 2021 Census Mount Samson had 625 usual residents, with a median age of 47 and an average household size of 3.1 people. The wider Dayboro statistical area, which contains Mount Samson, went from 5,554 people in 2001 to 10,103 in 2025, up 82%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Mount Samson alone.
Is Mount Samson an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Samson scores 1096 and sits in decile 10 of 10 nationally and decile 10 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 Mount Samson?
Median household income in Mount Samson was $2,750 a week at the 2021 Census, against $1,827 for the typical suburb in Moreton Bay City. Median rent was $435 a week and the median mortgage repayment $2,392 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Mount Samson property?
A Mount Samson 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.