๐Ÿ“ฎ Hervey Bay postcode: 4655

Flood Risk in Hervey Bay, QLD: 2026 Assessment

Hervey Bay, Queenslandยท Fraser Coast Regional Councilยท 4655
Hervey Bay faces a moderate risk of flooding due to its low-lying coastal areas and proximity to waterways. Intense rainfall events can lead to stormwater and riverine flooding.Updated 2 Apr 2026

Flood Risk Score

6.5/10

Hervey Bay faces a moderate risk of flooding due to its low-lying coastal areas and proximity to waterways. Intense rainfall events can lead to stormwater and riverine flooding.

Key Facts

Flood Risk
Hervey Bay faces a moderate risk of flooding due to its low-lying coastal areas and proximity to waterways. Intense rainfall events can lead to stormwater and riverine flooding.
Trend
increasing
Suburb
Hervey Bay, QLD
Overall Risk
Medium
Postcode
4655
Highest high-risk exposure
10.7% of land (extreme wind)

Flood Risk Analysis

Hervey Bay, located in Queensland, 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 Queensland.

Historical flood events have impacted residential and commercial areas in Hervey Bay.

Hervey Bay faces a moderate risk of flooding due to its low-lying coastal areas and proximity to waterways. Intense rainfall events can lead to stormwater and riverine flooding.

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.

Hervey Bay sits within ClimateNest's suburb-level hazard model for flood risk. 10.1% of the suburb's land area is mapped in high-risk flood zones and 69.4% 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 Hervey Bay.

Hervey Bay (postcode 4655) 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 extreme wind (10.7% of land in high-risk zones), riverine flood (10.1% of land in high-risk zones), tropical cyclone (9.4% of land in high-risk zones). Exposure is not uniform across Hervey Bay โ€” 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 WaterwayUrangan Harbour
Elevation Range0-20m
Flood Zone ClassificationAreas near the coast and waterways are prone to flooding.

Historical Events

2013
Moderate

Widespread flooding occurred in Hervey Bay due to heavy rainfall associated with ex-Tropical Cyclone Oswald.

2009
Moderate

Heavy rainfall led to flooding in low-lying areas of Hervey Bay.

Adaptation & Mitigation Actions

Upgrade stormwater drainage infrastructure

Near-term

Improve the capacity of stormwater drainage systems to handle increased rainfall intensity and reduce the risk of flooding.

Est. cost: High

Implement a heatwave management plan

Immediate

Develop a plan to protect vulnerable populations during heatwaves, including establishing cooling centers and providing public awareness campaigns.

Est. cost: Medium

Strengthen coastal defenses

Long-term

Invest in coastal protection measures, such as seawalls and beach nourishment, to reduce the impact of sea level rise and storm surges.

Est. cost: Very High

Promote water conservation

Near-term

Encourage residents and businesses to conserve water to reduce the strain on water resources during droughts and heatwaves.

Est. cost: Low

Council & Emergency Services

Fraser Coast Regional Council
Emergency Services

Data last updated: 2 April 2026

Explore Hervey Bay Risk Reports

Frequently Asked Questions

Is Hervey Bay at risk of flooding?

Based on available data, Hervey Bay has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Hervey Bay?

Insurance costs for flood cover in Hervey Bay 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 Hervey Bay?

Yes, flood risk can affect property values in Hervey Bay. 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 Hervey Bay?

Elevation is a critical factor in flood risk. Properties at higher elevations within Hervey Bay 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 Hervey Bay is exposed to high extreme wind risk?

ClimateNest's hazard overlay maps 10.7% of Hervey Bay in high-risk zones for extreme wind, with a further 80.9% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Hervey Bay Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Hervey Bay, Queensland, 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 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections