Flood Risk in One Mile, NSW: 2026 Assessment

One Mile, New South Wales· UNKNOWN
One Mile faces a moderate risk of flooding, primarily from heavy rainfall events and potential coastal inundation. The risk is influenced by its proximity to waterways and low-lying areas.Updated 24 May 2026

Flood Risk Score

6.5/10

One Mile faces a moderate risk of flooding, primarily from heavy rainfall events and potential coastal inundation. The risk is influenced by its proximity to waterways and low-lying areas.

Key Facts

Flood Risk
One Mile faces a moderate risk of flooding, primarily from heavy rainfall events and potential coastal inundation. The risk is influenced by its proximity to waterways and low-lying areas.
Trend
increasing
Suburb
One Mile, NSW
Overall Risk
Medium
Postcode
2316
Highest high-risk exposure
16.6% of land (bushfire)

Flood Risk Analysis

One Mile, 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 past inundation events in low-lying areas.

One Mile faces a moderate risk of flooding, primarily from heavy rainfall events and potential coastal inundation. The risk is influenced by its proximity to waterways and low-lying areas.

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.

One Mile sits within ClimateNest's suburb-level hazard model for flood risk. 3% of the suburb's land area is mapped in high-risk flood zones and 78.9% 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 One Mile.

One Mile (postcode 2316) 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 (16.6% of land in high-risk zones), surface flood (15.1% of land in high-risk zones), extreme wind (6.1% of land in high-risk zones). Exposure is not uniform across One Mile — 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 WaterwayUnnamed Creek
Elevation Range5-15 meters
Flood Zone ClassificationPartially within a flood zone

Historical Events

2007
Moderate

Heavy rainfall caused localized flooding in low-lying areas of One Mile.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to mitigate flood risks, such as improved drainage systems and flood barriers.

Est. cost: High

Implement Heat Action Plan

Immediate

Develop and implement a heat action plan to protect vulnerable residents during heatwaves.

Est. cost: Medium

Strengthen Bushfire Preparedness

Near-term

Enhance bushfire preparedness through community education, property maintenance, and strategic fire breaks.

Est. cost: Medium

Protect Coastal Areas

Long-term

Implement coastal protection measures to mitigate erosion and sea level rise impacts.

Est. cost: High

Promote Water Conservation

Near-term

Encourage water conservation practices to reduce water stress during droughts and heatwaves.

Est. cost: Low

Council & Emergency Services

Port Stephens Council
Emergency Services

Data last updated: 24 May 2026

Explore One Mile Risk Reports

Frequently Asked Questions

Is One Mile at risk of flooding?

Based on available data, One Mile 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 One Mile?

Insurance costs for flood cover in One Mile 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 One Mile?

Yes, flood risk can affect property values in One Mile. 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 One Mile?

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

ClimateNest's hazard overlay maps 16.6% of One Mile in high-risk zones for bushfire, with a further 62.1% 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 One Mile Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for One Mile, 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