📮 Cooranbong postcode: 2265

Flood Risk in Cooranbong, QLD: 2026 Assessment

Cooranbong, Queensland· Lake Macquarie· 2265
Cooranbong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.Updated 21 May 2026

Flood Risk Score

6.5/10

Cooranbong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Key Facts

Flood Risk
Cooranbong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
Trend
increasing
Suburb
Cooranbong, QLD
Overall Risk
Medium
Postcode
4569
Region
Coastal QLD
Median property value
$675,000
Dominant hazard
extreme heat (6/10)
Highest high-risk exposure
9.9% of land (tropical cyclone)

Flood Risk Analysis

Cooranbong, located in Queensland, 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 Queensland.

Historical flood data indicates that properties near Dora Creek have experienced inundation during heavy rainfall events.

Cooranbong faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, 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.

Cooranbong sits within ClimateNest's suburb-level hazard model for flood risk. 8.2% of the suburb's land area is mapped in high-risk flood zones and 68.6% 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 Cooranbong.

On ClimateNest's 0–10 suburb hazard index, Cooranbong scores 5 for flood risk — a moderate exposure relative to the Australian suburb range. For comparison, properties in Cooranbong can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Cooranbong located in Coastal QLD (postcode 4569), is a Queensland suburb tracked by ClimateNest. The suburb's median property value is $675,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Cooranbong.

Across the six hazard axes ClimateNest models, the dominant climate risk in Cooranbong is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising significantly (+40% 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 Cooranbong, 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 Cooranbong are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayDora Creek
Elevation Range5-50m
Flood Zone ClassificationAreas near Dora Creek are prone to flooding.

Historical Events

2023
Moderate

Heavy rainfall caused flash flooding in Cooranbong, leading to road closures and property damage.

2007
Moderate

Major flooding occurred in the Hunter region, impacting Cooranbong and surrounding areas. Dora Creek overflowed, inundating homes and businesses.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce flood risk.

Est. cost: Medium

Implement Bushfire Management Strategies

Immediate

Conduct regular vegetation management, create firebreaks, and implement community education programs to reduce bushfire risk.

Est. cost: Medium

Develop Heatwave Response Plan

Near-term

Establish a heatwave response plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Strengthen Building Codes

Long-term

Implement stricter building codes in flood-prone and bushfire-prone areas to improve the resilience of new and existing buildings.

Est. cost: Medium

Community Awareness Programs

Near-term

Educate residents about climate risks and preparedness measures through workshops and online resources.

Est. cost: Low

Council & Emergency Services

Lake Macquarie City Council
Emergency Services

Data last updated: 21 May 2026

Explore Cooranbong Risk Reports

Frequently Asked Questions

Is Cooranbong at risk of flooding?

Based on available data, Cooranbong 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 Cooranbong?

Insurance costs for flood cover in Cooranbong 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 Cooranbong?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Cooranbong 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 Cooranbong?

ClimateNest's suburb model rates Cooranbong's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by damaging wind (6/10) and severe storm (6/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Cooranbong.

What share of Cooranbong is exposed to high tropical cyclone risk?

ClimateNest's hazard overlay maps 9.9% of Cooranbong in high-risk zones for tropical cyclone, with a further 66% 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 Cooranbong Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Cooranbong, Queensland, 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