📮 Wallacia postcode: 2745

Flood Risk in Wallacia, NSW: 2026 Assessment

Wallacia, New South Wales· Penrith· 2745
Wallacia faces a moderate risk of flooding due to its proximity to the Warragamba River and other waterways. Heavy rainfall events can lead to riverine and flash flooding.Updated 22 May 2026

Is Wallacia Safe from Climate Risk?

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

Free instant previewCSIRO-powered data

What A$49 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$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections

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Flood Risk Score

Not assessed

Wallacia faces a moderate risk of flooding due to its proximity to the Warragamba River and other waterways. Heavy rainfall events can lead to riverine and flash flooding.

Key Facts

Flood Risk
Wallacia faces a moderate risk of flooding due to its proximity to the Warragamba River and other waterways. Heavy rainfall events can lead to riverine and flash flooding.
Trend
increasing
Suburb
Wallacia, NSW
Overall Risk
Medium
Postcode
2745

Flood Risk Analysis

Wallacia, located in New South Wales, has a location-specific 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 Warragamba River is prone to flooding after heavy rainfall in the catchment area.

Wallacia faces a moderate risk of flooding due to its proximity to the Warragamba River and other waterways. Heavy rainfall events can lead to riverine and flash 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.

ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Wallacia. An address-level check is what tells you about a specific property before you buy, sell or insure it.

Local Hazard Evidence

Nearest WaterwayWarragamba River
Elevation Range50-100m
Flood Zone ClassificationLikely

Historical Events

2011
Moderate

Heavy rainfall caused flooding in the Warragamba River, impacting low-lying areas of Wallacia. Roads were closed, and some properties were affected.

1961
Major

Major flooding occurred in the Warragamba River catchment, impacting Wallacia and surrounding areas. Many properties were inundated, and infrastructure was damaged.

Adaptation & Mitigation Actions

Develop a Flood Emergency Plan

Immediate

Create a detailed plan for responding to flood events, including evacuation routes, emergency contacts, and essential supplies.

Est. cost: Low

Implement Bushfire Protection Measures

Immediate

Clear vegetation around your property, install fire-resistant materials, and develop a bushfire survival plan.

Est. cost: Medium

Improve Home Cooling and Insulation

Near-term

Install air conditioning, improve insulation, and plant trees to reduce heat exposure during heatwaves.

Est. cost: Medium

Support Local Flood Mitigation Projects

Long-term

Advocate for and support local government initiatives to improve flood defenses and drainage infrastructure.

Est. cost: High

Participate in Community Bushfire Preparedness Programs

Near-term

Engage with local fire brigades and community groups to learn about bushfire safety and preparedness.

Est. cost: Low

Council & Emergency Services

Penrith City Council
Emergency Services

Data last updated: 22 May 2026

Explore Wallacia Risk Reports

Frequently Asked Questions

Is Wallacia at risk of flooding?

Based on available data, Wallacia has a location-specific 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 Wallacia?

Insurance costs for flood cover in Wallacia 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 Wallacia?

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

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

Is Wallacia Safe from Climate Risk?

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

Free instant previewCSIRO-powered data

What A$49 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$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections