Flood Risk in Ilarwill, NSW: 2026 Assessment

Ilarwill, New South Wales· UNKNOWN
Flooding may pose a risk to Ilarwill, particularly during periods of heavy rainfall. Low-lying areas are more vulnerable.Updated 4 May 2026

Flood Risk Score

4.0/10

Flooding may pose a risk to Ilarwill, particularly during periods of heavy rainfall. Low-lying areas are more vulnerable.

Key Facts

Flood Risk
Flooding may pose a risk to Ilarwill, particularly during periods of heavy rainfall. Low-lying areas are more vulnerable.
Trend
stable
Suburb
Ilarwill, NSW
Overall Risk
Medium
Postcode
2463
Highest high-risk exposure
20.4% of land (bushfire)

Flood Risk Analysis

Ilarwill, 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 for specific flood maps.

Flooding may pose a risk to Ilarwill, particularly during periods of heavy rainfall. Low-lying areas are more vulnerable.

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.

Ilarwill sits within ClimateNest's suburb-level hazard model for flood risk. 6.1% of the suburb's land area is mapped in high-risk flood zones and 75.2% 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 Ilarwill.

Ilarwill (postcode 2463) 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 (20.4% of land in high-risk zones), riverine flood (6.1% of land in high-risk zones), surface flood (5.1% of land in high-risk zones). Exposure is not uniform across Ilarwill — 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
Elevation RangeVaries across the suburb
Flood Zone ClassificationPotentially low-lying areas

Historical Events

2017
Minor

Heavy rainfall led to localized flooding in low-lying areas of Ilarwill.

Adaptation & Mitigation Actions

Improve Bushfire Preparedness

Immediate

Clear vegetation around properties, develop a bushfire survival plan, and ensure adequate insurance coverage.

Est. cost: Low

Enhance Heatwave Resilience

Near-term

Install air conditioning or fans, stay hydrated, and check on vulnerable neighbors during heatwaves.

Est. cost: Low to Medium

Upgrade Flood Defenses

Long-term

Install flood barriers, improve drainage systems, and relocate valuable items to higher ground.

Est. cost: Medium to High

Promote Water Conservation

Near-term

Implement water-saving measures in homes and businesses to reduce strain on water resources during droughts.

Est. cost: Low

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 4 May 2026

Explore Ilarwill Risk Reports

Frequently Asked Questions

Is Ilarwill at risk of flooding?

Based on available data, Ilarwill 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 Ilarwill?

Insurance costs for flood cover in Ilarwill 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 Ilarwill?

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

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

ClimateNest's hazard overlay maps 20.4% of Ilarwill in high-risk zones for bushfire, with a further 60.4% 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 Ilarwill Safe from Climate Risk?

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