Flood Risk in Carrs Island, NSW: 2026 Assessment

Carrs Island, New South Wales· UNKNOWN
Carrs Island 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 4 May 2026

Flood Risk Score

6.0/10

Carrs Island 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
Carrs Island 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
Carrs Island, NSW
Overall Risk
Medium
Postcode
2460
Region
Coastal NSW
Median property value
$925,000
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
11.7% of land (surface flood)

Flood Risk Analysis

Carrs Island, 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.

Low-lying areas near the river are most vulnerable.

Carrs Island 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.

Carrs Island sits within ClimateNest's suburb-level hazard model for flood risk. 5.1% of the suburb's land area is mapped in high-risk flood zones and 74.6% 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 Carrs Island.

On ClimateNest's 0–10 suburb hazard index, Carrs Island scores 4 for flood risk — a moderate exposure relative to the Australian suburb range. For comparison, properties in Carrs Island can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Carrs Island located in Coastal NSW (postcode 2460), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $925,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Carrs Island.

Across the six hazard axes ClimateNest models, the dominant climate risk in Carrs Island is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+30% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Carrs Island, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Carrs Island are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayHawkesbury River
Elevation Range0-5 meters
Flood Zone ClassificationLikely

Historical Events

2022
Moderate

Major flooding along the Hawkesbury River affected Carrs Island.

2016
Minor

Minor flooding along the Hawkesbury River.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity.

Est. cost: Medium

Develop Heat Action Plan

Immediate

Implement a plan to protect vulnerable populations during heatwaves.

Est. cost: Low

Coastal Protection Measures

Long-term

Implement measures to protect against coastal erosion and sea level rise.

Est. cost: High

Community Awareness Programs

Near-term

Educate residents about climate risks and preparedness measures.

Est. cost: Low

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 4 May 2026

Explore Carrs Island Risk Reports

Frequently Asked Questions

Is Carrs Island at risk of flooding?

Based on available data, Carrs Island 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 Carrs Island?

Insurance costs for flood cover in Carrs Island 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 Carrs Island?

Yes, flood risk can affect property values in Carrs Island. 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 Carrs Island?

Elevation is a critical factor in flood risk. Properties at higher elevations within Carrs Island 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 are the main climate risks in Carrs Island?

ClimateNest's suburb model rates Carrs Island's dominant climate risk as extreme heat at 5/10 on a 0–10 index, followed by damaging wind (5/10) and severe storm (5/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Carrs Island.

What share of Carrs Island is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 11.7% of Carrs Island in high-risk zones for surface flood, with a further 75.8% 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 Carrs Island Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Carrs Island, 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