๐Ÿ“ฎ Sussex Inlet postcode: 2540

Flood Risk in Sussex Inlet, NSW: 2026 Assessment

Sussex Inlet, New South Walesยท Shoalhavenยท 2540
Sussex Inlet is susceptible to flooding due to its low-lying coastal location and proximity to the inlet. Heavy rainfall and storm surges can lead to inundation of properties and infrastructure.Updated 8 Mar 2026

Flood Risk Score

6.5/10

Sussex Inlet is susceptible to flooding due to its low-lying coastal location and proximity to the inlet. Heavy rainfall and storm surges can lead to inundation of properties and infrastructure.

Key Facts

Flood Risk
Sussex Inlet is susceptible to flooding due to its low-lying coastal location and proximity to the inlet. Heavy rainfall and storm surges can lead to inundation of properties and infrastructure.
Trend
increasing
Suburb
Sussex Inlet, NSW
Overall Risk
Medium
Postcode
2540
Highest high-risk exposure
21.9% of land (bushfire)

Flood Risk Analysis

Sussex Inlet, located in New South Wales, 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 New South Wales.

The Shoalhaven River and its tributaries contribute to the flood risk in the area.

Sussex Inlet is susceptible to flooding due to its low-lying coastal location and proximity to the inlet. Heavy rainfall and storm surges can lead to inundation of properties and infrastructure.

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.

Sussex Inlet sits within ClimateNest's suburb-level hazard model for flood risk. 7.9% of the suburb's land area is mapped in high-risk flood zones and 67.5% 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 Sussex Inlet.

Sussex Inlet (postcode 2540) 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 (21.9% of land in high-risk zones), surface flood (8.3% of land in high-risk zones), riverine flood (7.9% of land in high-risk zones). Exposure is not uniform across Sussex Inlet 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 WaterwaySussex Inlet
Elevation Range0-10 meters
Flood Zone ClassificationCoastal floodplain

Historical Events

2022
Moderate

Heavy rainfall caused flooding in Sussex Inlet and surrounding areas.

2011
Moderate

Major flooding occurred in the Shoalhaven region, impacting Sussex Inlet.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to protect against flooding, such as levees and drainage systems.

Est. cost: High

Bushfire Preparedness

Immediate

Implement bushfire management strategies, including hazard reduction burns and community education programs.

Est. cost: Medium

Heatwave Action Plan

Near-term

Develop a heatwave action plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Coastal Management Strategy

Long-term

Develop a long-term coastal management strategy to address sea level rise and erosion.

Est. cost: High

Council & Emergency Services

Shoalhaven City Council
Emergency Services

Data last updated: 8 March 2026

Explore Sussex Inlet Risk Reports

Frequently Asked Questions

Is Sussex Inlet at risk of flooding?

Based on available data, Sussex Inlet 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 Sussex Inlet?

Insurance costs for flood cover in Sussex Inlet 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 Sussex Inlet?

Yes, flood risk can affect property values in Sussex Inlet. 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 Sussex Inlet?

Elevation is a critical factor in flood risk. Properties at higher elevations within Sussex Inlet 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 Sussex Inlet is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 21.9% of Sussex Inlet in high-risk zones for bushfire, with a further 67.5% 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 Sussex Inlet Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Sussex Inlet, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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