Flood Risk in Yerriyong, NSW: 2026 Assessment

Yerriyong, New South Wales· UNKNOWN
Yerriyong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding and riverine flooding.Updated 25 May 2026

Flood Risk Score

6.5/10

Yerriyong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding and riverine flooding.

Key Facts

Flood Risk
Yerriyong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding and riverine flooding.
Trend
increasing
Suburb
Yerriyong, NSW
Overall Risk
Medium
Postcode
2540
Highest high-risk exposure
9.3% of land (bushfire)

Flood Risk Analysis

Yerriyong, 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.

Historical flood data indicates inundation of properties near the Shoalhaven River during major rainfall events.

Yerriyong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding 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.

Yerriyong sits within ClimateNest's suburb-level hazard model for flood risk. 7.1% of the suburb's land area is mapped in high-risk flood zones and 70.5% 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 Yerriyong.

Yerriyong (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 (9.3% of land in high-risk zones), riverine flood (7.1% of land in high-risk zones), extreme wind (5.4% of land in high-risk zones). Exposure is not uniform across Yerriyong — 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 WaterwayShoalhaven River
Elevation Range50-100m
Flood Zone ClassificationLikely in low-lying areas near the river

Historical Events

2020
Moderate

Heavy rainfall caused flash flooding in Yerriyong, affecting local roads and properties.

2016
Moderate

Flooding along the Shoalhaven River inundated low-lying areas in and around Yerriyong.

Adaptation & Mitigation Actions

Upgrade Flood Defenses

Near-term

Invest in improved drainage systems and levees to protect properties from flooding.

Est. cost: High

Bushfire Preparedness

Immediate

Implement bushfire mitigation measures, such as vegetation management and community education programs.

Est. cost: Medium

Heatwave Action Plan

Near-term

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

Est. cost: Low

Community Awareness Programs

Long-term

Conduct community workshops and information sessions to raise awareness about climate risks and adaptation strategies.

Est. cost: Low

Council & Emergency Services

Shoalhaven City Council
Emergency Services

Data last updated: 25 May 2026

Explore Yerriyong Risk Reports

Frequently Asked Questions

Is Yerriyong at risk of flooding?

Based on available data, Yerriyong 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 Yerriyong?

Insurance costs for flood cover in Yerriyong 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 Yerriyong?

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

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

ClimateNest's hazard overlay maps 9.3% of Yerriyong in high-risk zones for bushfire, with a further 65.6% 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 Yerriyong Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Yerriyong, New South Wales, 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