Thornlie bushfire risk
Of Thornlie’s 10,207 mapped properties, 7.7% are in a mapped bushfire-prone area. Flood mapping for this area is coming soon.
For context, Thornlie’s bushfire exposure is below the WA average of 21.7%.
Where the hazards are in Thornlie
Flood and bushfire areas across Thornlie. Zoom in to see how they fall relative to individual streets.
Crime near Thornlie
Thornlie sits in the Armadale police district, which recorded 25,930 reported offences in the 12 months to Mar 2026.
Every reported offence by type — these add up to the 25,930 total. Figures are for the whole Armadale police district (which may cover several suburbs), last 12 months. Reported offences only.
Zoning in Thornlie
Thornlie is mostly residential. The most common zones:
General residential — standard housing; allowable density varies by precinct.
Zone: Residential
Centre / commercial — shops, offices and mixed use; often allows apartments above.
Zone: District centre
Centre / commercial — shops, offices and mixed use; often allows apartments above.
Zone: Local centre
Who lives in Thornlie
At the 2021 Census, 41.7% of Thornlie’s 23,665 residents were born overseas.
Top ancestries
Top countries of birth
Ancestry counts people reporting each ancestry (up to two each), as a share of responses. Source: ABS 2021 Census.
Development near Thornlie
Gosnells council approved 628 new dwellings in the 12 months to May 2026.
New dwellings approved across the whole Gosnells council area (not just Thornlie). See the council trend. Source: ABS Building Approvals.
Nearby suburbs
Figures are indicative only — verify any specific property with the relevant council. Sources: council/state planning schemes & flood mapping, Geoscape G-NAF, state police crime statistics, ABS.