๐Ÿ“ฎ Casuarina postcode: 0810

Flood Risk in Casuarina, NT: 2026 Assessment

Casuarina, Northern Territoryยท City of Darwinยท 0810
Casuarina faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.Updated 3 Apr 2026

Flood Risk Score

6.0/10

Casuarina faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.

Key Facts

Flood Risk
Casuarina faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.
Trend
increasing
Suburb
Casuarina, NT
Overall Risk
Medium
Postcode
0810
Highest high-risk exposure
14% of land (tropical cyclone)

Flood Risk Analysis

Casuarina, 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.

Significant flooding occurred in 2012 and 2023, impacting properties near Rapid Creek.

Casuarina faces a moderate risk of flooding, primarily due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.

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.

Casuarina sits within ClimateNest's suburb-level hazard model for flood risk. 3.8% of the suburb's land area is mapped in high-risk flood zones and 88.1% 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 Casuarina.

Casuarina (postcode 0810) 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 tropical cyclone (14% of land in high-risk zones), extreme wind (11.6% of land in high-risk zones), bushfire (9.1% of land in high-risk zones). Exposure is not uniform across Casuarina โ€” 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 WaterwayRapid Creek
Elevation Range0-10 meters
Flood Zone ClassificationCoastal Flood Zone

Historical Events

2023
Moderate

Heavy rainfall caused significant flooding in Casuarina, impacting homes and businesses.

2012
Moderate

Widespread flooding occurred in Darwin, including Casuarina, due to a monsoon event.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade stormwater drainage systems to handle increased rainfall intensity and reduce the risk of flooding.

Est. cost: High

Implement Coastal Protection Measures

Long-term

Construct seawalls and other coastal defenses to protect against sea level rise and coastal erosion.

Est. cost: Very High

Develop Heat Action Plans

Immediate

Implement heat action plans to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Medium

Promote Water Conservation

Near-term

Encourage water conservation measures to reduce demand on water resources during periods of drought and heat.

Est. cost: Low

Council & Emergency Services

City of Darwin
Emergency Services

Data last updated: 3 April 2026

Explore Casuarina Risk Reports

Frequently Asked Questions

Is Casuarina at risk of flooding?

Based on available data, Casuarina has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Casuarina?

Insurance costs for flood cover in Casuarina 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 Casuarina?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Casuarina 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 Casuarina is exposed to high tropical cyclone risk?

ClimateNest's hazard overlay maps 14% of Casuarina in high-risk zones for tropical cyclone, with a further 72.1% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Casuarina Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Casuarina, 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 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections