Septimus flood map & planning overlays
Septimus holds 35 ha lots, 4th-largest in the district, and 78.6% bushfire mapping.
Things you won't regret: spending $9 to know the lot before you commit.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Septimus
(Mackay Regional, QLD) - 201.59 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
201.59 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Septimus's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
How common is mapped flood risk across Septimus properties?
Counts of properties, not share of land, across 150 analysed Septimus properties; no individual property result is identified.
Lot-level readout
Flood-risk rating across all 150 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Septimus.
Aircraft noise and flight paths over Septimus
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 7 Nov 2026
typical observed square 0 a day
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
How this is measured
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
Septimus at a glance
Schools in and near Septimus
Public school-location data shows availability across the suburb; it does not rate schools or assign any individual address to a catchment.
Inside the suburb boundary
0 schools providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 1.99 km from the suburb boundary
Secondary: 4.35 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time.
Which school zone is a Septimus address in? Check an address with our free school zone checker.
How Septimus is zoned
Selling in Septimus? 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 201.59 km², Septimus is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 79% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 351,321 m² across 137 parcels.
Who lives in Septimus
Census 2021 figures published by the ABS for the Septimus 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 968, and decile 6 within Queensland. The national average is 1000.
Age profile
Share of Septimus's 120 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Eungella Hinterland, the wider ABS statistical area containing Septimus. There is no annual population series published at suburb level, so this describes the surrounding area rather than Septimus itself.
0 in 2001 to 9 in 2025.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Septimus data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 7 November 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Septimus 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 →Aircraft have been seen below 3,000 ft over about 9% of Septimus. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of Septimus. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
The Terrain Report shows the fall of the block - contours, cross sections and a 3D model of the lot to spin round in your browser (+$9 with the planning report).
Moving here? The Liveability section adds walking times from the address to schools, parks, shops and transport, and the school zones it sits in (+$9 with the planning report).
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Septimus lot.
Septimus planning - frequently asked
Is Septimus flood-prone?
Flood mapping covers Septimus and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 36%). Across the suburb, 1% of the 150 properties we analysed carry some level of mapped flood risk. Published flood models are held over parts of Septimus; the free check on the Flood Model Report page says whether one reaches a given address.
Is Septimus bushfire-prone?
Around 79% of Septimus is mapped as bushfire-prone, compared with a Mackay Regional average of 26%.
Is Septimus under a flight path?
Aircraft were observed below 3,000 ft over about 9% of Septimus, and over about 29% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 1,000 ft, with an average of 4,000 ft. At the busiest point in the suburb about 0 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
What is the zoning in Septimus?
The dominant planning zone in Septimus is Rural, though the suburb also includes Conservation.
Does Septimus have heritage-listed places?
No heritage-listed places are on record within Septimus.
Is Septimus hilly or flat?
Septimus is gently undulating: the median ground slope is about 4%, and 11% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 53 m to 178 m AHD across the suburb.
What is the typical lot size in Septimus?
Across 137 surveyed parcels in Septimus, the median lot size is about 351,321 m². There are also 30 registered easements mapped in the suburb.
What is the population of Septimus?
At the 2021 Census Septimus had 120 usual residents, with a median age of 47 and an average household size of 2.6 people.
Is Septimus an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Septimus scores 968 and sits in decile 4 of 10 nationally and decile 6 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Septimus?
Median household income in Septimus was $1,843 a week at the 2021 Census, against $1,937 for the typical suburb in Mackay Regional. Median rent was $150 a week and the median mortgage repayment $1,950 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Pinevale | 8.8 km | 0% | 81% |
| Mia Mia | 9.2 km | Not mapped | 36% |
| Pinnacle | 11.1 km | <1% | 69% |
| Gargett | 13.3 km | Not mapped | 28% |
| Benholme | 13.6 km | <1% | 15% |
| Brightly | 14.6 km | 12% | 38% |
| Kinchant Dam | 15.4 km | 28% | 24% |
| Mirani | 16.9 km | 36% | 1% |
| Hazledean | 17.5 km | 0% | 89% |
| Eton | 19.2 km | 17% | 62% |