Brigalow flood map & planning overlays
Brigalow's 51 ha lots are 71.9% flood-mapped, home to a median age of 41.
Most lots here are flood-mapped. The free check shows how much of one lot the overlay covers.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Brigalow
(Western Downs Regional, QLD) - 273.9 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
273.9 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Brigalow'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
Aircraft noise and flight paths over Brigalow
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: observed, lowest 3,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Brigalow at a glance
Schools in and near Brigalow
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
1 school providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: 12.22 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 Brigalow address in? Check an address with our free school zone checker.
How Brigalow is zoned
Selling in Brigalow? 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 273.9 km², Brigalow is highly constrained by planning overlays. About 72% of the suburb sits within a mapped flood overlay, and 35% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 507,287 m² across 302 parcels.
Who lives in Brigalow
Census 2021 figures published by the ABS for the Brigalow 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 971, and decile 6 within Queensland. The national average is 1000.
Age profile
Share of Brigalow's 181 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Chinchilla, the wider ABS statistical area containing Brigalow. There is no annual population series published at suburb level, so this describes the surrounding area rather than Brigalow itself.
5,677 in 2001 to 9,159 in 2025, up 61%.
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.
Brigalow 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 Brigalow 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 4% of Brigalow. 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 Brigalow. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$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 Brigalow lot.
Brigalow planning - frequently asked
Is Brigalow flood-prone?
About 72% of Brigalow falls within a mapped flood overlay, against the council-wide suburb average of 49%. Published flood models are held over parts of Brigalow; the free check on the Flood Model Report page says whether one reaches a given address.
Is Brigalow bushfire-prone?
Around 35% of Brigalow is mapped as bushfire-prone, compared with a Western Downs Regional average of 43%.
Is Brigalow under a flight path?
Aircraft were observed below 3,000 ft over about 4% of Brigalow, and over about 62% 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 1,500 ft, with an average of 5,000 ft. At the busiest point in the suburb about 1 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 Brigalow?
The dominant planning zone in Brigalow is Rural, though the suburb also includes Community facilities and Recreation and open space.
Does Brigalow have heritage-listed places?
No heritage-listed places are on record within Brigalow.
What is the typical lot size in Brigalow?
Across 302 surveyed parcels in Brigalow, the median lot size is about 507,287 m². There are also 26 registered easements mapped in the suburb.
What is the population of Brigalow?
At the 2021 Census Brigalow had 181 usual residents, with a median age of 41 and an average household size of 2.3 people. The wider Chinchilla statistical area, which contains Brigalow, went from 5,677 people in 2001 to 9,159 in 2025, up 61%.
Is Brigalow an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Brigalow scores 971 and sits in decile 5 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 Brigalow?
Median household income in Brigalow was $1,292 a week at the 2021 Census, against $1,432 for the typical suburb in Western Downs Regional. Median rent was $120 a week and the median mortgage repayment $1,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Boonarga | 11.8 km | 60% | 19% |
| Wychie | 12.1 km | 84% | 4% |
| Hopeland | 14.6 km | 61% | 27% |
| Warra | 14.7 km | 91% | 10% |
| Chances Plain | 17.5 km | 55% | 11% |
| Tuckerang | 20.2 km | 96% | 9% |
| Montrose | 23.0 km | 55% | 80% |
| Chinchilla | 23.4 km | 78% | 46% |
| Kogan | 25.1 km | 38% | 81% |
| Langlands | 27.4 km | 81% | 5% |