Flood Risk in Mandogalup, WA: 2026 Assessment

Mandogalup, Western Australia· UNKNOWN
Mandogalup faces a moderate risk of flooding, primarily from heavy rainfall events and potential overflow from nearby waterways. The flat terrain contributes to water accumulation.Updated 1 Apr 2026

Flood Risk Score

4.5/10

Mandogalup faces a moderate risk of flooding, primarily from heavy rainfall events and potential overflow from nearby waterways. The flat terrain contributes to water accumulation.

Key Facts

Flood Risk
Mandogalup faces a moderate risk of flooding, primarily from heavy rainfall events and potential overflow from nearby waterways. The flat terrain contributes to water accumulation.
Trend
increasing
Suburb
Mandogalup, WA
Overall Risk
Medium
Postcode
6167
Highest high-risk exposure
25.3% of land (bushfire)

Flood Risk Analysis

Mandogalup, located in Western Australia, 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 Western Australia.

Historical flood data indicates localized flooding during periods of intense rainfall.

Mandogalup faces a moderate risk of flooding, primarily from heavy rainfall events and potential overflow from nearby waterways. The flat terrain contributes to water accumulation.

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.

Mandogalup sits within ClimateNest's suburb-level hazard model for flood risk. 9.5% of the suburb's land area is mapped in high-risk flood zones and 83.4% 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 Mandogalup.

Mandogalup (postcode 6167) 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 (25.3% of land in high-risk zones), surface flood (11.8% of land in high-risk zones), riverine flood (9.5% of land in high-risk zones). Exposure is not uniform across Mandogalup — 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 WaterwaySerpentine River
Elevation Range5-15 meters
Flood Zone ClassificationLow-lying areas near the river

Historical Events

2010
Moderate

Heavy rainfall caused localized flooding in low-lying areas of Mandogalup.

Adaptation & Mitigation Actions

Improve Bushfire Preparedness

Immediate

Create and maintain firebreaks around properties. Develop a bushfire survival plan and practice it regularly. Stay informed about fire danger ratings and warnings.

Est. cost: Low

Enhance Heatwave Resilience

Near-term

Install insulation and energy-efficient windows to reduce heat gain. Plant trees to provide shade. Identify cooling centers in the community. Check on vulnerable neighbors during heatwaves.

Est. cost: Medium

Upgrade Flood Defenses

Near-term

Improve drainage infrastructure to reduce the risk of flooding. Elevate homes in flood-prone areas. Purchase flood insurance.

Est. cost: High

Protect Coastal Areas

Long-term

Implement coastal protection measures, such as seawalls and dune restoration. Restrict development in vulnerable coastal zones. Plan for managed retreat if necessary.

Est. cost: Very High

Council & Emergency Services

City of Cockburn
Emergency Services

Data last updated: 1 April 2026

Explore Mandogalup Risk Reports

Frequently Asked Questions

Is Mandogalup at risk of flooding?

Based on available data, Mandogalup 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 Mandogalup?

Insurance costs for flood cover in Mandogalup 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 Mandogalup?

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

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

ClimateNest's hazard overlay maps 25.3% of Mandogalup in high-risk zones for bushfire, with a further 69.5% 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 Mandogalup Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Mandogalup, Western Australia, 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