Dalby flood map & planning overlays
Dalby leads Western Downs Regional: 12,758 residents, 6 schools, 7 heritage places.
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 Dalby
(Western Downs Regional, QLD) - 323.82 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
323.82 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Dalby'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 Dalby
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 1,000 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.
Dalby at a glance
Schools in and near Dalby
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
4 schools providing primary years and 4 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: inside the suburb
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time.
Which school zone is a Dalby address in? Check an address with our free school zone checker.
How Dalby is zoned
Selling in Dalby? 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 323.82 km², Dalby is highly constrained by planning overlays. About 85% of the suburb sits within a mapped flood overlay, and 8% is flagged bushfire-prone. There are 7 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 1,007 m² across 7,152 parcels.
Who lives in Dalby
Census 2021 figures published by the ABS for the Dalby 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 922, and decile 3 within Queensland. The national average is 1000.
Age profile
Share of Dalby's 12,758 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Wambo, the wider ABS statistical area containing Dalby. There is no annual population series published at suburb level, so this describes the surrounding area rather than Dalby itself.
15,011 in 2001 to 17,853 in 2025, up 19%.
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.
Dalby 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 Dalby 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 49% of Dalby. 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 Dalby. 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 Dalby lot.
Dalby planning - frequently asked
Is Dalby flood-prone?
About 85% of Dalby falls within a mapped flood overlay, against the council-wide suburb average of 49%. Published flood models are held over parts of Dalby; the free check on the Flood Model Report page says whether one reaches a given address.
Is Dalby bushfire-prone?
Around 8% of Dalby is mapped as bushfire-prone, compared with a Western Downs Regional average of 43%.
Is Dalby under a flight path?
Aircraft were observed below 3,000 ft over about 49% of Dalby, and over about 85% 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 500 ft, with an average of 3,000 ft. At the busiest point in the suburb about 39 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 Dalby?
The dominant planning zone in Dalby is Rural, though the suburb also includes Rural residential and Community facilities.
Does Dalby have heritage-listed places?
Dalby has 7 heritage-listed places on record.
What is the typical lot size in Dalby?
Across 7,152 surveyed parcels in Dalby, the median lot size is about 1,007 m². There are also 356 registered easements mapped in the suburb.
What is the population of Dalby?
At the 2021 Census Dalby had 12,758 usual residents, with a median age of 35 and an average household size of 2.6 people. The wider Wambo statistical area, which contains Dalby, went from 15,011 people in 2001 to 17,853 in 2025, up 19%.
Is Dalby an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Dalby scores 922 and sits in decile 2 of 10 nationally and decile 3 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Dalby?
Median household income in Dalby was $1,462 a week at the 2021 Census, against $1,432 for the typical suburb in Western Downs Regional. Median rent was $260 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Pirrinuan | 10.2 km | 72% | 8% |
| Irvingdale | 15.8 km | 57% | 7% |
| Ranges Bridge | 17.3 km | 100% | 9% |
| Blaxland | 17.5 km | 95% | <1% |
| Nandi | 18.8 km | 93% | 14% |
| Kaimkillenbun | 19.3 km | 40% | 30% |
| St Ruth | 19.8 km | 99% | 7% |
| Macalister | 21.4 km | 89% | 7% |
| Jimbour East | 23.9 km | 44% | 38% |
| Springvale | 25.4 km | 98% | 5% |