Flood Risk in Mondayong, NSW: 2026 Assessment

Mondayong, New South Wales
The area may be susceptible to flooding from heavy rainfall and nearby waterways.Updated 31 May 2026

Flood Risk Score

6.0/10

The area may be susceptible to flooding from heavy rainfall and nearby waterways.

Key Facts

Flood Risk
The area may be susceptible to flooding from heavy rainfall and nearby waterways.
Trend
increasing
Suburb
Mondayong, NSW
Overall Risk
Medium
Postcode
2540
Highest high-risk exposure
18.6% of land (bushfire)

Flood Risk Analysis

Mondayong, 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.

Check local council flood maps for specific property risks.

The area may be susceptible to flooding from heavy rainfall and nearby waterways.

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.

Mondayong sits within ClimateNest's suburb-level hazard model for flood risk. 14.1% of the suburb's land area is mapped in high-risk flood zones and 79.4% 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 Mondayong.

Mondayong (postcode 2540) 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 (18.6% of land in high-risk zones), riverine flood (14.1% of land in high-risk zones), surface flood (5.8% of land in high-risk zones). Exposure is not uniform across Mondayong — 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 WaterwayLocal creeks and streams
Elevation RangeVaries across the suburb
Flood Zone ClassificationAreas near waterways

Historical Events

2011
Moderate

Major flooding event impacted the region, causing property damage and disruptions.

Adaptation & Mitigation Actions

Improve stormwater drainage

Immediate

Upgrade stormwater infrastructure to handle increased rainfall intensity and reduce flooding.

Est. cost: High

Implement heatwave early warning system

Near-term

Develop a system to alert residents of impending heatwaves and provide guidance on staying safe.

Est. cost: Medium

Bushfire hazard reduction

Near-term

Regularly clear vegetation around properties to reduce the risk of bushfires.

Est. cost: Low

Promote water conservation

Long-term

Encourage residents to conserve water to reduce the strain on water resources during droughts.

Est. cost: Low

Council & Emergency Services

Example Shire Council
Emergency Services

Data last updated: 31 May 2026

Explore Mondayong Risk Reports

Frequently Asked Questions

Is Mondayong at risk of flooding?

Based on available data, Mondayong 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 Mondayong?

Insurance costs for flood cover in Mondayong 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 Mondayong?

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

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

ClimateNest's hazard overlay maps 18.6% of Mondayong in high-risk zones for bushfire, with a further 62.9% 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 Mondayong Safe from Climate Risk?

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