South Johnstone flood map and flood risk
South Johnstone, Cassowary Coast Regional Council · Queensland · based on 400 mapped addresses
About 40.8% of mapped addresses in South Johnstone sit inside Queensland's potential floodplain overlay (QFAO). Every property differs, so check the exact address.
South Johnstone at a glance
Hazards across South Johnstone
Share of mapped addresses in South Johnstone inside each government hazard layer. It describes the suburb, not any one property.
Flood map of South Johnstone
Check a property in South Johnstone
The free check shows every mapped hazard for one address: flood, past floods, bushfire, storm tide, coastal erosion and acid sulfate soils, and what each means for a buyer. The full report adds how much of the lot is affected, zoning and planning overlays, school catchments and nearby services, a checklist of what to ask, and a PDF to keep.
Before you buy in South Johnstone
- Ask Cassowary Coast Regional Council for a flood search on the exact lot - it gives flood levels and the rules for building.
- Get written insurance quotes that include flood cover.
- Ask the seller whether the property has flooded, and check for flood damage at inspection.
Stay informed
Get notified when flood data updates for South Johnstone.
Nearby suburbs
Indicative only. Compiled from Queensland Government datasets (QFAO, Queensland Flood Extent Series, QSpatial), Brisbane City Council, ABS and G-NAF. Not property-level advice - verify with the council before any property decision. Last updated 2026-09-28.