Bilyana flood map & planning overlays
56.4% bushfire-mapped, 8th of 124 in Cassowary Coast Regional.
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 Bilyana
(Cassowary Coast Regional, QLD) - 130.26 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
130.26 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Bilyana's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Bilyana
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
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.
Bilyana at a glance
Schools in and near Bilyana
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: 3.18 km from the suburb boundary
Secondary: 13.75 km from the suburb boundary
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 Bilyana is zoned
Selling in Bilyana? 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 130.26 km², Bilyana is highly constrained by planning overlays. About 73% of the suburb sits within a mapped flood overlay, and 56% is flagged bushfire-prone. The dominant land-use zone is Environmental management and conservation. The median lot measures about 70,375 m² across 159 parcels.
Who lives in Bilyana
Census 2021 figures published by the ABS for the Bilyana 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 915, and decile 3 within Queensland. The national average is 1000.
Age profile
Share of Bilyana's 190 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Tully, the wider ABS statistical area containing Bilyana. There is no annual population series published at suburb level, so this describes the surrounding area rather than Bilyana itself.
11,086 in 2001 to 11,867 in 2025, up 7%.
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.
Bilyana 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 Bilyana 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 →Published flood models are held over parts of Bilyana. 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 the indicative soil reactivity range to expect for a Bilyana lot.
Bilyana planning - frequently asked
Is Bilyana flood-prone?
About 73% of Bilyana falls within a mapped flood overlay, against the council-wide suburb average of 66%. Published flood models are held over parts of Bilyana; the free check on the Flood Model Report page says whether one reaches a given address.
Is Bilyana bushfire-prone?
Around 56% of Bilyana is mapped as bushfire-prone, compared with a Cassowary Coast Regional average of 16%.
Is Bilyana under a flight path?
No aircraft were observed over Bilyana in the period sampled (4 Sep 2026 to 7 Nov 2026). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Bilyana?
The dominant planning zone in Bilyana is Environmental management and conservation, though the suburb also includes Rural and Special purpose.
Does Bilyana have heritage-listed places?
No heritage-listed places are on record within Bilyana.
What is the typical lot size in Bilyana?
Across 159 surveyed parcels in Bilyana, the median lot size is about 70,375 m². There are also 24 registered easements mapped in the suburb.
What is the population of Bilyana?
At the 2021 Census Bilyana had 190 usual residents, with a median age of 54 and an average household size of 2.3 people. The wider Tully statistical area, which contains Bilyana, went from 11,086 people in 2001 to 11,867 in 2025, up 7%.
Is Bilyana an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Bilyana scores 915 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 Bilyana?
Median household income in Bilyana was $1,016 a week at the 2021 Census, against $1,319 for the typical suburb in Cassowary Coast Regional. Median rent was $200 a week and the median mortgage repayment $1,083 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Kennedy | 8.3 km | 65% | 60% |
| Rockingham | 8.7 km | 84% | 43% |
| Murrigal | 9.7 km | 98% | 28% |
| Euramo | 14.0 km | 100% | 8% |
| Ellerbeck | 14.3 km | 85% | 61% |
| Carruchan | 15.0 km | 73% | 69% |
| Tully Heads | 15.2 km | 70% | 28% |
| Lower Tully | 15.8 km | 91% | 38% |
| Silky Oak | 15.8 km | 91% | 12% |
| Murray Upper | 17.7 km | 37% | 49% |