Flood Risk in Mullion, NSW: 2026 Assessment
Flood Risk Score
6.5/10Mullion 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
Historical Events
Significant flooding along the Macquarie River impacted Mullion and surrounding areas, leading to evacuations and property damage.
The Macquarie River experienced moderate flooding, impacting low-lying areas in and around Mullion.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to mitigate flood risks, such as levees, improved drainage systems, and flood-proofing buildings.
Est. cost: High
Enhance Bushfire Preparedness
Near-termImplement 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
ImmediateCreate 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-termEncourage 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
Explore Mullion Risk Reports
View other climate risk assessments for Mullion:
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?
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