Flood Risk in Mount Pleasant, NSW: 2026 Assessment

Mount Pleasant, New South Wales· Wollongong
Mount Pleasant faces a moderate risk of flooding due to its proximity to waterways and potential for heavy rainfall. Climate change is expected to increase the intensity of rainfall events, exacerbating flood risk.Updated 30 May 2026

Flood Risk Score

6.5/10

Mount Pleasant faces a moderate risk of flooding due to its proximity to waterways and potential for heavy rainfall. Climate change is expected to increase the intensity of rainfall events, exacerbating flood risk.

Key Facts

Flood Risk
Mount Pleasant faces a moderate risk of flooding due to its proximity to waterways and potential for heavy rainfall. Climate change is expected to increase the intensity of rainfall events, exacerbating flood risk.
Trend
increasing
Suburb
Mount Pleasant, NSW
Overall Risk
Medium
Postcode
2519
Highest high-risk exposure
12.8% of land (surface flood)

Flood Risk Analysis

Mount Pleasant, 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 that properties near Allans Creek have experienced flooding in the past.

Mount Pleasant faces a moderate risk of flooding due to its proximity to waterways and potential for heavy rainfall. Climate change is expected to increase the intensity of rainfall events, exacerbating flood 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.

Mount Pleasant sits within ClimateNest's suburb-level hazard model for flood risk. 4% of the suburb's land area is mapped in high-risk flood zones and 70.4% 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 Mount Pleasant.

Mount Pleasant (postcode 2519) 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 surface flood (12.8% of land in high-risk zones), bushfire (11.8% of land in high-risk zones), riverine flood (4% of land in high-risk zones). Exposure is not uniform across Mount Pleasant — 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 WaterwayAllans Creek
Elevation Range20-80 meters
Flood Zone ClassificationAreas near Allans Creek are susceptible to flooding.

Historical Events

2011
Moderate

Major flooding event in the Illawarra region caused significant damage to property and infrastructure.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce flood risk.

Est. cost: Medium

Bushfire Risk Mitigation

Near-term

Implement bushfire risk reduction measures, such as vegetation management and fire breaks.

Est. cost: Medium

Heatwave Preparedness Plan

Immediate

Develop and implement a heatwave preparedness plan to protect vulnerable residents.

Est. cost: Low

Coastal Protection Measures

Long-term

Implement coastal protection measures to mitigate the impacts of sea level rise and storm surges.

Est. cost: High

Council & Emergency Services

Wollongong City Council
Emergency Services

Data last updated: 30 May 2026

Explore Mount Pleasant Risk Reports

Frequently Asked Questions

Is Mount Pleasant at risk of flooding?

Based on available data, Mount Pleasant 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 Mount Pleasant?

Insurance costs for flood cover in Mount Pleasant 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 Mount Pleasant?

Yes, flood risk can affect property values in Mount Pleasant. 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 Mount Pleasant?

Elevation is a critical factor in flood risk. Properties at higher elevations within Mount Pleasant 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 Mount Pleasant is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 12.8% of Mount Pleasant in high-risk zones for surface flood, with a further 60.3% 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 Mount Pleasant Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Mount Pleasant, 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