Flood Risk in Devonport, TAS: 2026 Assessment

Devonport, Tasmania· UNKNOWN
Devonport faces a notable risk of flooding due to its proximity to the Mersey River and coastal location. Increased rainfall intensity and rising sea levels are expected to exacerbate this risk.Updated 2 Apr 2026

Flood Risk Score

6.5/10

Devonport faces a notable risk of flooding due to its proximity to the Mersey River and coastal location. Increased rainfall intensity and rising sea levels are expected to exacerbate this risk.

Key Facts

Flood Risk
Devonport faces a notable risk of flooding due to its proximity to the Mersey River and coastal location. Increased rainfall intensity and rising sea levels are expected to exacerbate this risk.
Trend
increasing
Suburb
Devonport, TAS
Overall Risk
Medium
Postcode
7310
Highest high-risk exposure
8.7% of land (bushfire)

Flood Risk Analysis

Devonport, located in Tasmania, has a notable 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 Devonport, highlighting the need for ongoing flood mitigation efforts. The council has implemented some flood management strategies, but further investment is needed to address future risks.

Devonport faces a notable risk of flooding due to its proximity to the Mersey River and coastal location. Increased rainfall intensity and rising sea levels are expected to exacerbate this risk.

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.

Devonport sits within ClimateNest's suburb-level hazard model for flood risk. 7.3% of the suburb's land area is mapped in high-risk flood zones and 85.8% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Devonport.

Devonport (postcode 7310) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (8.7% of land in high-risk zones), riverine flood (7.3% of land in high-risk zones), surface flood (6.6% of land in high-risk zones). Exposure is not uniform across Devonport — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Local Hazard Evidence

Nearest WaterwayMersey River
Elevation Range0-50 meters
Flood Zone ClassificationAreas along the Mersey River and low-lying coastal regions are prone to flooding.

Historical Events

2020
Minor

Heavy rainfall led to localized flooding in low-lying areas of Devonport.

2016
Moderate

Significant flooding occurred in Devonport due to heavy rainfall, causing damage to properties and infrastructure.

Adaptation & Mitigation Actions

Upgrade Flood Defenses

Near-term

Invest in upgrading flood defenses, such as levees and drainage systems, to protect properties and infrastructure from increased flood risk.

Est. cost: High

Coastal Protection Measures

Near-term

Implement coastal protection measures, such as seawalls and beach nourishment, to mitigate the impacts of sea level rise and coastal erosion.

Est. cost: High

Heatwave Preparedness Plan

Immediate

Develop and implement a heatwave preparedness plan to protect vulnerable populations during extreme heat events. This includes establishing cooling centers and providing public awareness campaigns.

Est. cost: Medium

Bushfire Risk Mitigation

Long-term

Implement bushfire risk mitigation measures, such as vegetation management and community education programs, to reduce the risk of bushfires in surrounding areas.

Est. cost: Medium

Climate-Resilient Infrastructure

Long-term

Ensure that all new infrastructure projects are designed to be climate-resilient, taking into account the projected impacts of climate change.

Est. cost: High

Council & Emergency Services

Devonport City Council
Emergency Services

Data last updated: 2 April 2026

Explore Devonport Risk Reports

Frequently Asked Questions

Is Devonport at risk of flooding?

Based on available data, Devonport has a notable 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 Devonport?

Insurance costs for flood cover in Devonport 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 Devonport?

Yes, flood risk can affect property values in Devonport. 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 Devonport?

Elevation is a critical factor in flood risk. Properties at higher elevations within Devonport 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.

What share of Devonport is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 8.7% of Devonport in high-risk zones for bushfire, with a further 63.3% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Devonport Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Devonport, Tasmania, covering flood, bushfire, sea level rise and more.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections