Dalby flood map & planning overlays
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 19 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
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.
Nearby suburbs, nearest first
Dalby at a glance
Schools in and near Dalby
Public school-location data shows availability across the suburb. These figures do not rate schools and do not assign a particular 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; use the official catchment finder for a specific address.
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 1,006 m² across 7,142 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 |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 19 September 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.
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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Dalby lot.
See what's in the $9 report →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%.
Is Dalby bushfire-prone?
Around 8% of Dalby is mapped as bushfire-prone, compared with a Western Downs Regional average of 43%.
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 7,142 surveyed parcels in Dalby, the median lot size is about 1,006 m². There are also 355 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% |