Flood Risk in Oxley Island, NSW: 2026 Assessment

Oxley Island, New South Wales· UNKNOWN
Oxley Island is at a high risk of flooding due to its low elevation and proximity to the Manning River. Climate change is expected to increase the frequency and intensity of rainfall events, exacerbating flood risk.Updated 8 May 2026

Flood Risk Score

7.0/10

Oxley Island is at a high risk of flooding due to its low elevation and proximity to the Manning River. Climate change is expected to increase the frequency and intensity of rainfall events, exacerbating flood risk.

Key Facts

Flood Risk
Oxley Island is at a high risk of flooding due to its low elevation and proximity to the Manning River. Climate change is expected to increase the frequency and intensity of rainfall events, exacerbating flood risk.
Trend
increasing
Suburb
Oxley Island, NSW
Overall Risk
Medium
Postcode
2430
Highest high-risk exposure
12.5% of land (surface flood)

Flood Risk Analysis

Oxley 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.

Oxley Island is almost entirely surrounded by the Manning River, making it highly susceptible to riverine flooding. Tidal influences also contribute to flood risk.

Oxley Island is at a high risk of flooding due to its low elevation and proximity to the Manning River. Climate change is expected to increase the frequency and intensity of rainfall events, exacerbating flood risk.

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.

Oxley Island sits within ClimateNest's suburb-level hazard model for flood risk. 4.7% of the suburb's land area is mapped in high-risk flood zones and 69.4% 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 Oxley Island.

Oxley Island (postcode 2430) 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 surface flood (12.5% of land in high-risk zones), bushfire (10.2% of land in high-risk zones), riverine flood (4.7% of land in high-risk zones). Exposure is not uniform across Oxley Island — 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 WaterwayManning River
Elevation Range0-5 meters
Flood Zone ClassificationHigh Risk

Historical Events

2020
Moderate

Heavy rainfall caused the Manning River to flood, impacting Oxley Island and surrounding areas.

2013
Moderate

Major flooding of the Manning River caused widespread inundation on Oxley Island, impacting homes and businesses.

2011
Moderate

Significant flooding event affected Oxley Island, leading to evacuations and property damage.

Adaptation & Mitigation Actions

Improve Flood Defenses

Immediate

Invest in levees, drainage improvements, and flood-proofing measures to protect homes and businesses from flooding.

Est. cost: High

Develop a Heatwave Management Plan

Near-term

Implement a plan to protect vulnerable populations during heatwaves, including cooling centers and community outreach programs.

Est. cost: Medium

Protect Coastal Areas

Near-term

Implement coastal protection measures, such as seawalls and beach nourishment, to reduce erosion and protect infrastructure.

Est. cost: High

Raise Awareness and Educate Residents

Long-term

Provide residents with information about climate risks and how to prepare for extreme weather events.

Est. cost: Low

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 8 May 2026

Explore Oxley Island Risk Reports

Frequently Asked Questions

Is Oxley Island at risk of flooding?

Based on available data, Oxley 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 Oxley Island?

Insurance costs for flood cover in Oxley 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 Oxley Island?

Yes, flood risk can affect property values in Oxley 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 Oxley Island?

Elevation is a critical factor in flood risk. Properties at higher elevations within Oxley 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 share of Oxley Island is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 12.5% of Oxley Island in high-risk zones for surface flood, with a further 67.3% 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 Oxley Island Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Oxley Island, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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