📮 Blackbutt postcode: 2291

Flood Risk in Blackbutt, NSW: 2026 Assessment

Blackbutt, New South Wales· City of Lake Macquarie· 2291
Blackbutt faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding.Updated 25 May 2026

Flood Risk Score

6.5/10

Blackbutt faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding.

Key Facts

Flood Risk
Blackbutt faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding.
Trend
increasing
Suburb
Blackbutt, NSW
Overall Risk
Medium
Postcode
2529
Region
Coastal NSW
Median property value
$925,000
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
11% of land (surface flood)

Flood Risk Analysis

Blackbutt, 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.

Some properties are located near flood-prone areas.

Blackbutt faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding.

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.

Blackbutt sits within ClimateNest's suburb-level hazard model for flood risk. 4.9% of the suburb's land area is mapped in high-risk flood zones and 68.3% 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 Blackbutt.

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

Blackbutt located in Coastal NSW (postcode 2529), 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 Blackbutt.

Across the six hazard axes ClimateNest models, the dominant climate risk in Blackbutt 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 Blackbutt, 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 Blackbutt are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayUnnamed Creek
Elevation Range10-30 meters
Flood Zone ClassificationMedium

Historical Events

2007
Moderate

Major flooding event in the Hunter region affected Blackbutt, causing property damage and road closures.

Adaptation & Mitigation Actions

Improve drainage infrastructure

Near-term

Upgrade drainage systems to reduce the risk of flash flooding during intense rainfall events.

Est. cost: Medium

Implement bushfire management strategies

Immediate

Reduce fuel loads around properties and implement community education programs to prepare for bushfires.

Est. cost: Low

Increase green spaces

Near-term

Plant trees and create green spaces to reduce the urban heat island effect and provide shade during heatwaves.

Est. cost: Medium

Develop a community emergency plan

Immediate

Create a plan to prepare for and respond to climate-related emergencies, such as floods, bushfires, and heatwaves.

Est. cost: Low

Promote water conservation

Long-term

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

Est. cost: Low

Council & Emergency Services

City of Lake Macquarie
Emergency Services

Data last updated: 25 May 2026

Explore Blackbutt Risk Reports

Frequently Asked Questions

Is Blackbutt at risk of flooding?

Based on available data, Blackbutt 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 Blackbutt?

Insurance costs for flood cover in Blackbutt 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 Blackbutt?

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

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

ClimateNest's suburb model rates Blackbutt'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 Blackbutt.

What share of Blackbutt is exposed to high surface flood risk?

ClimateNest's hazard overlay maps 11% of Blackbutt in high-risk zones for surface flood, with a further 61.7% 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 Blackbutt Safe from Climate Risk?

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