Flood Risk in Callaghan, NT: 2026 Assessment

Callaghan, Northern Territory· UNKNOWN
Callaghan faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to localized flooding.Updated 24 May 2026

Flood Risk Score

6.5/10

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

Key Facts

Flood Risk
Callaghan faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to localized flooding.
Trend
increasing
Suburb
Callaghan, NT
Overall Risk
Medium
Postcode
0872
Highest high-risk exposure
11.6% of land (bushfire)

Flood Risk Analysis

Callaghan, located in Northern Territory, 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 Northern Territory.

Local drainage infrastructure may be insufficient to handle increased rainfall intensity.

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

Callaghan sits within ClimateNest's suburb-level hazard model for flood risk. 5.2% of the suburb's land area is mapped in high-risk flood zones and 74.2% 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 Callaghan.

Callaghan (postcode 0872) 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 (11.6% of land in high-risk zones), tropical cyclone (10.4% of land in high-risk zones), extreme wind (8% of land in high-risk zones). Exposure is not uniform across Callaghan — 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 WaterwayHunter River
Elevation RangeVaries, some low-lying areas
Flood Zone ClassificationPotentially affected areas near waterways

Historical Events

2022
Moderate

Significant rainfall caused localized flooding in low-lying areas of Callaghan.

2007
Moderate

Major flooding in the Hunter region affected parts of Callaghan, causing property damage and disruptions.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

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

Est. cost: High

Implement Heatwave Management Plan

Immediate

Develop and implement a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Medium

Vegetation Management

Near-term

Manage vegetation around properties to reduce bushfire risk, including clearing undergrowth and creating firebreaks.

Est. cost: Low

Community Education Programs

Long-term

Conduct community education programs to raise awareness about climate risks and adaptation measures.

Est. cost: Low

Promote Water Conservation

Long-term

Encourage water conservation measures to reduce strain on water resources during droughts and heatwaves.

Est. cost: Low

Council & Emergency Services

City of Newcastle
Emergency Services

Data last updated: 24 May 2026

Explore Callaghan Risk Reports

Frequently Asked Questions

Is Callaghan at risk of flooding?

Based on available data, Callaghan 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 Callaghan?

Insurance costs for flood cover in Callaghan 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 Callaghan?

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

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

ClimateNest's hazard overlay maps 11.6% of Callaghan in high-risk zones for bushfire, with a further 78.2% 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 Callaghan Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Callaghan, Northern Territory, 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