๐Ÿ“ฎ Yarramundi postcode: 2753

Flood Risk in Yarramundi, NSW: 2026 Assessment

Yarramundi, New South Walesยท Hawkesburyยท 2753
Yarramundi is highly susceptible to flooding due to its location near the Grose River and Hawkesbury River. Historical flood events and projected climate change impacts increase the risk.Updated 10 May 2026

Flood Risk Score

8.5/10

Yarramundi is highly susceptible to flooding due to its location near the Grose River and Hawkesbury River. Historical flood events and projected climate change impacts increase the risk.

Key Facts

Flood Risk
Yarramundi is highly susceptible to flooding due to its location near the Grose River and Hawkesbury River. Historical flood events and projected climate change impacts increase the risk.
Trend
increasing
Suburb
Yarramundi, NSW
Overall Risk
High
Postcode
2753
Highest high-risk exposure
14% of land (bushfire)

Flood Risk Analysis

Yarramundi, 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 frequent inundation of low-lying areas. The Warragamba Dam also plays a role in flood management.

Yarramundi is highly susceptible to flooding due to its location near the Grose River and Hawkesbury River. Historical flood events and projected climate change impacts increase the 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.

Yarramundi sits within ClimateNest's suburb-level hazard model for flood risk. 3.8% of the suburb's land area is mapped in high-risk flood zones and 66.5% 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 Yarramundi.

Yarramundi (postcode 2753) 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 (14% of land in high-risk zones), surface flood (4.7% of land in high-risk zones), riverine flood (3.8% of land in high-risk zones). Exposure is not uniform across Yarramundi 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 WaterwayGrose River and Hawkesbury River
Elevation RangeVaries, generally low-lying near the rivers
Flood Zone ClassificationYes, various flood zones depending on proximity to the rivers

Historical Events

2022
Major

Severe flooding of the Hawkesbury River caused widespread damage and evacuations in Yarramundi.

2011
Moderate

Significant flooding along the Grose River affected Yarramundi.

1990
Major

Major flooding of the Hawkesbury River inundated large parts of Yarramundi.

Adaptation & Mitigation Actions

Improve Flood Defenses

Immediate

Invest in flood levees and drainage systems to protect properties from inundation.

Est. cost: High

Strengthen Bushfire Preparedness

Immediate

Implement bushfire hazard reduction programs and improve community education on bushfire safety.

Est. cost: Medium

Develop Heatwave Management Plan

Near-term

Establish cooling centers and provide support for vulnerable residents during heatwaves.

Est. cost: Low

Enhance Emergency Response Capacity

Near-term

Increase the capacity of emergency services to respond to flood, bushfire, and heatwave events.

Est. cost: Medium

Review Land Use Planning

Long-term

Incorporate climate change projections into land use planning decisions to avoid development in high-risk areas.

Est. cost: Low

Council & Emergency Services

Hawkesbury City Council
Emergency Services

Data last updated: 10 May 2026

Explore Yarramundi Risk Reports

Frequently Asked Questions

Is Yarramundi at risk of flooding?

Based on available data, Yarramundi 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 Yarramundi?

Insurance costs for flood cover in Yarramundi 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 Yarramundi?

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

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

ClimateNest's hazard overlay maps 14% of Yarramundi in high-risk zones for bushfire, with a further 77.7% 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 Yarramundi Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Yarramundi, 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