Bald Knob flood map & planning overlays
A planning-constraint profile of Bald Knob (Sunshine Coast Regional, QLD) - 20.11 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
20.11 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Bald Knob'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.
Bald Knob 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 178 Bald Knob properties.
Lot-level readout
Flood-risk rating across all 178 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Bald Knob.
Bald Knob at a glance
How Bald Knob is zoned
Selling in Bald Knob? 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 20.11 km², Bald Knob is highly constrained by planning overlays. About 1% of the suburb sits within a mapped flood overlay, and 31% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is steep, and the median lot measures about 24,083 m² across 222 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 Bald Knob
Census 2021 figures published by the ABS for the Bald Knob 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 1060, and decile 10 within Queensland. The national average is 1000.
Age profile
Share of Bald Knob's 280 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Caloundra Hinterland, the wider ABS statistical area containing Bald Knob. There is no annual population series published at suburb level, so this describes the surrounding area rather than Bald Knob itself.
7,344 in 2001 to 9,352 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 Bald Knob 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 →Bald Knob planning - frequently asked
Where can I see a flood map of Bald Knob?
The schematic on this page is a Bald Knob flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 1% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Bald Knob address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Bald Knob flood-prone?
About 1% of Bald Knob falls within a mapped flood overlay, against a Sunshine Coast Regional average of 32%. Looking lot by lot, 5% of the 178 properties we analysed in Bald Knob carry some level of mapped flood risk, including 6 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 Bald Knob bushfire-prone?
Yes - around 31% of Bald Knob 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 Bald Knob?
The dominant planning zone in Bald Knob is Rural, though the suburb also includes Environmental Management and Conservation and Community Facilities. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Bald Knob have heritage-listed places?
No heritage-listed places are on record within Bald Knob. Even so, it is worth confirming for an individual property before any works.
Is Bald Knob hilly or flat?
Bald Knob is steep: the median lot slope is about 22%, and 76% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 186 m to 476 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 Bald Knob?
Across 222 surveyed parcels in Bald Knob, the median lot size is about 24,083 m². There are also 68 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 Bald Knob have a train station?
There is no train station inside Bald Knob itself. The suburb is served by 9 bus stops.
What is the population of Bald Knob?
At the 2021 Census Bald Knob had 280 usual residents, with a median age of 60 and an average household size of 2.2 people. The wider Caloundra Hinterland statistical area, which contains Bald Knob, went from 7,344 people in 2001 to 9,352 in 2025, up 27%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Bald Knob alone.
Is Bald Knob an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Bald Knob scores 1060 and sits in decile 9 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 Bald Knob?
Median household income in Bald Knob was $1,812 a week at the 2021 Census, against $1,674 for the typical suburb in Sunshine Coast Regional. Median rent was $330 a week and the median mortgage repayment $2,300 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Bald Knob property?
A Bald Knob 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.