Flood Risk in Gladstone, QLD: 2026 Assessment

Gladstone, Queensland· UNKNOWN
Gladstone faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.Updated 2 Apr 2026

Flood Risk Score

6.0/10

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

Key Facts

Flood Risk
Gladstone faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.
Trend
increasing
Suburb
Gladstone, QLD
Overall Risk
Medium
Postcode
4680
Highest high-risk exposure
17.9% of land (tropical cyclone)

Flood Risk Analysis

Gladstone, 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 events have impacted Gladstone, highlighting the need for improved flood management strategies.

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

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.

Gladstone sits within ClimateNest's suburb-level hazard model for flood risk. 10.6% of the suburb's land area is mapped in high-risk flood zones and 71.8% 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 Gladstone.

Gladstone (postcode 4680) 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 (17.9% of land in high-risk zones), extreme wind (11% of land in high-risk zones), riverine flood (10.6% of land in high-risk zones). Exposure is not uniform across Gladstone — 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 WaterwayCalliope River
Elevation Range0-50 meters
Flood Zone ClassificationAreas near the Calliope River and coastal areas are prone to flooding.

Historical Events

2022
Moderate

Heavy rainfall caused flash flooding in parts of Gladstone.

2013
Moderate

Widespread flooding occurred in Gladstone following heavy rainfall.

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

Clear vegetation around properties and develop bushfire survival plans.

Est. cost: Low

Promote Energy Efficiency

Long-term

Reduce energy consumption to lower greenhouse gas emissions and mitigate the urban heat island effect.

Est. cost: Medium

Protect Coastal Areas

Near-term

Implement coastal protection measures to reduce the impacts of sea level rise and erosion.

Est. cost: High

Develop a Heatwave Management Plan

Immediate

Establish cooling centers and provide support to vulnerable populations during heatwaves.

Est. cost: Low

Council & Emergency Services

Gladstone Regional Council
Emergency Services

Data last updated: 2 April 2026

Explore Gladstone Risk Reports

Frequently Asked Questions

Is Gladstone at risk of flooding?

Based on available data, Gladstone 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 Gladstone?

Insurance costs for flood cover in Gladstone 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 Gladstone?

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

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

ClimateNest's hazard overlay maps 17.9% of Gladstone in high-risk zones for tropical cyclone, with a further 60% 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 Gladstone Safe from Climate Risk?

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