๐Ÿ“ฎ Mullion postcode: 2820

Flood Risk in Mullion, NSW: 2026 Assessment

Mullion, New South Walesยท Dubbo Regionalยท 2820
Mullion faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.Updated 30 May 2026

Flood Risk Score

6.5/10

Mullion faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

Key Facts

Flood Risk
Mullion faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.
Trend
increasing
Suburb
Mullion, NSW
Overall Risk
Medium
Postcode
2582
Highest high-risk exposure
12.9% of land (bushfire)

Flood Risk Analysis

Mullion, 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 areas near the Macquarie River have experienced flooding in the past. Residents should consult local council resources for detailed flood maps and preparedness information.

Mullion faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

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.

Mullion sits within ClimateNest's suburb-level hazard model for flood risk. 7.4% of the suburb's land area is mapped in high-risk flood zones and 77.1% 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 Mullion.

Mullion (postcode 2582) 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 (12.9% of land in high-risk zones), riverine flood (7.4% of land in high-risk zones), extreme wind (4.3% of land in high-risk zones). Exposure is not uniform across Mullion โ€” 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 WaterwayMacquarie River
Elevation Range270-290m
Flood Zone ClassificationAreas near the Macquarie River are susceptible to flooding.

Historical Events

2022
Major

Significant flooding along the Macquarie River impacted Mullion and surrounding areas, leading to evacuations and property damage.

2010
Moderate

The Macquarie River experienced moderate flooding, impacting low-lying areas in and around Mullion.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

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

Est. cost: High

Enhance Bushfire Preparedness

Near-term

Implement measures to reduce bushfire risk, such as fuel reduction programs, community education, and improved building standards in bushfire-prone areas.

Est. cost: Medium

Develop Heatwave Management Plan

Immediate

Create a heatwave management plan to protect vulnerable populations during extreme heat events, including establishing cooling centers and providing public health advice.

Est. cost: Low

Promote Water Conservation

Long-term

Encourage water conservation measures to reduce water stress during periods of drought and heatwaves, such as rainwater harvesting and efficient irrigation techniques.

Est. cost: Low

Council & Emergency Services

Dubbo Regional Council
Emergency Services

Data last updated: 30 May 2026

Explore Mullion Risk Reports

Frequently Asked Questions

Is Mullion at risk of flooding?

Based on available data, Mullion has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Mullion?

Insurance costs for flood cover in Mullion 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 Mullion?

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

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

ClimateNest's hazard overlay maps 12.9% of Mullion in high-risk zones for bushfire, with a further 73.1% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Mullion Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Mullion, 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 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections