Mount Archer flood map & planning overlays
A planning-constraint profile of Mount Archer (Somerset Regional, QLD) - 50.53 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
50.53 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Archer'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 Archer at a glance
How Mount Archer is zoned
Selling in Mount Archer? 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 50.53 km², Mount Archer is highly constrained by planning overlays. About 13% of the suburb sits within a mapped flood overlay, and 75% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Limited development. The median lot measures about 21,115 m² across 155 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 Archer
Census 2021 figures published by the ABS for the Mount Archer 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 931, and decile 3 within Queensland. The national average is 1000.
Age profile
Share of Mount Archer's 331 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Kilcoy, the wider ABS statistical area containing Mount Archer. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Archer itself.
4,029 in 2001 to 6,216 in 2025, up 54%.
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 Archer 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 Archer planning - frequently asked
Where can I see a flood map of Mount Archer?
The schematic on this page is a Mount Archer flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 13% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Mount Archer address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Mount Archer flood-prone?
About 13% of Mount Archer falls within a mapped flood overlay, against a Somerset Regional average of 25%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Mount Archer bushfire-prone?
Yes - around 75% of Mount Archer is mapped as bushfire-prone, compared with a Somerset Regional average of 54%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Mount Archer?
The dominant planning zone in Mount Archer is Limited development, though the suburb also includes Environmental management and conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Mount Archer have heritage-listed places?
Mount Archer has 2 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.
What is the typical lot size in Mount Archer?
Across 155 surveyed parcels in Mount Archer, the median lot size is about 21,115 m². There are also 19 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 Archer?
At the 2021 Census Mount Archer had 331 usual residents, with a median age of 48 and an average household size of 2.6 people. The wider Kilcoy statistical area, which contains Mount Archer, went from 4,029 people in 2001 to 6,216 in 2025, up 54%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Mount Archer alone.
Is Mount Archer an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Archer scores 931 and sits in decile 3 of 10 nationally and decile 3 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 Archer?
Median household income in Mount Archer was $1,607 a week at the 2021 Census, against $1,312 for the typical suburb in Somerset Regional. Median rent was $320 a week and the median mortgage repayment $1,907 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Mount Archer property?
A Mount Archer 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.