Flood Risk in Macdonalds Creek, NSW: 2026 Assessment

Macdonalds Creek, New South Wales· UNKNOWN
Macdonalds Creek faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine flooding. The risk is expected to increase with climate change.Updated 22 May 2026

Flood Risk Score

6.5/10

Macdonalds Creek faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine flooding. The risk is expected to increase with climate change.

Key Facts

Flood Risk
Macdonalds Creek faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine flooding. The risk is expected to increase with climate change.
Trend
increasing
Suburb
Macdonalds Creek, NSW
Overall Risk
Medium
Postcode
2339
Highest high-risk exposure
13.5% of land (bushfire)

Flood Risk Analysis

Macdonalds Creek, 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 past events have impacted the region.

Macdonalds Creek faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine flooding. The risk is expected to increase with climate change.

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.

Macdonalds Creek sits within ClimateNest's suburb-level hazard model for flood risk. 10% of the suburb's land area is mapped in high-risk flood zones and 72.7% 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 Macdonalds Creek.

Macdonalds Creek (postcode 2339) 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 (13.5% of land in high-risk zones), riverine flood (10% of land in high-risk zones), surface flood (5.4% of land in high-risk zones). Exposure is not uniform across Macdonalds Creek — 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 WaterwayHawkesbury River
Elevation Range50-100m
Flood Zone ClassificationPotentially affected by riverine flooding

Historical Events

2022
Moderate

Significant flooding event impacted the Hawkesbury River region, affecting Macdonalds Creek.

2013
Moderate

Heavy rainfall caused localized flooding in low-lying areas.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to mitigate flood risks, such as levees and improved drainage systems.

Est. cost: High

Develop Heat Action Plan

Immediate

Implement a plan to protect vulnerable residents during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Medium

Enhance Bushfire Preparedness

Near-term

Provide resources and education to residents on bushfire safety and property protection.

Est. cost: Low

Upgrade Infrastructure

Long-term

Ensure critical infrastructure is resilient to climate change impacts, including power grids and water supply systems.

Est. cost: Very High

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 22 May 2026

Explore Macdonalds Creek Risk Reports

Frequently Asked Questions

Is Macdonalds Creek at risk of flooding?

Based on available data, Macdonalds Creek 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 Macdonalds Creek?

Insurance costs for flood cover in Macdonalds Creek 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 Macdonalds Creek?

Yes, flood risk can affect property values in Macdonalds Creek. 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 Macdonalds Creek?

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

ClimateNest's hazard overlay maps 13.5% of Macdonalds Creek in high-risk zones for bushfire, with a further 70.9% 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 Macdonalds Creek Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Macdonalds Creek, 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