What the mapping shows for Triabunna
Part of Triabunna is mapped as subject to coastal inundation.
3.5% of Triabunna is mapped as subject to coastal inundation (coastal inundation hazard band, including 1% AEP storm tide at 2100)
7.1% of Triabunna is mapped as subject to coastal erosion (coastal erosion hazard band mapped for the Tasmanian planning system)
Tasmanian Coastal Inundation Hazard Bands (20161201), State of Tasmania (Department of Premier and Cabinet), Creative Commons Attribution 4.0, retrieved 2026-10-23
This is a share of the suburb's land area from a published state dataset, not an assessment of any property. A ClimateNest report scores the individual address across eight hazards, with insurance and value projections to 2050.
Check an address in Triabunna →Flood Risk in Triabunna, TAS: 2026 Assessment
3.5% of Triabunna is mapped as subject to coastal inundation (coastal inundation hazard band, including 1% AEP storm tide at 2100)
That figure covers the suburb. Check whether your address is inside it - address-level, sourced, A$49.
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Flood Risk Score
Not assessedTriabunna faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The risk is expected to increase due to climate change.
Key Facts
- Flood Risk
- Triabunna faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The risk is expected to increase due to climate change.
- Trend
- increasing
- Suburb
- Triabunna, TAS
- Overall Risk
- Medium
- Postcode
- 7190
Flood Risk Analysis
Triabunna, located in Tasmania, has a location-specific flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across Tasmania.
Historical flood events have impacted properties near the Prosser River. Council is working on flood mitigation strategies.
Triabunna faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The risk is expected to increase due to climate change.
For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.
ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Triabunna. An address-level check is what tells you about a specific property before you buy, sell or insure it.
Local Hazard Evidence
Historical Events
Significant flooding event impacted Triabunna after heavy rainfall, causing road closures and property damage.
Heavy rainfall caused flooding in Triabunna, affecting homes and businesses near the Prosser River.
Adaptation & Mitigation Actions
Upgrade Flood Defenses
Near-termInvest in infrastructure to protect against flooding, such as levees, drainage improvements, and flood-proofing of buildings.
Est. cost: High
Implement Coastal Protection Measures
Near-termProtect coastal areas from erosion and inundation through measures such as seawalls, beach nourishment, and dune restoration.
Est. cost: High
Improve Bushfire Preparedness
Near-termReduce bushfire risk through vegetation management, fire breaks, and community education programs.
Est. cost: Medium
Develop Heatwave Response Plans
ImmediateImplement measures to protect vulnerable populations during heatwaves, such as cooling centers, public awareness campaigns, and early warning systems.
Est. cost: Low
Enhance Emergency Management
Near-termStrengthen emergency response capabilities to deal with climate-related disasters, including improved communication, evacuation plans, and resource allocation.
Est. cost: Medium
Council & Emergency Services
Explore Triabunna Risk Reports
View other climate risk assessments for Triabunna:
Frequently Asked Questions
Is Triabunna at risk of flooding?
Based on available data, Triabunna has a location-specific flood risk profile. Flood risk varies by address — check your specific property for precise flood zone mapping and elevation data with ClimateNest.
What flood insurance costs can I expect in Triabunna?
Insurance costs for flood cover in Triabunna depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.
Does flood risk affect property values in Triabunna?
Yes, flood risk can affect property values in Triabunna. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.
How does elevation affect flood risk in Triabunna?
Elevation is a critical factor in flood risk. Properties at higher elevations within Triabunna typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.
Is Triabunna Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Triabunna, Tasmania, covering flood, bushfire, sea level rise and more.
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Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections