What the mapping shows for Mackay Harbour
Part of Mackay Harbour is mapped as subject to coastal inundation.
62.1% of Mackay Harbour is mapped as part of the Queensland coastal management district (coastal management district declared under the Coastal Management Act 2016)
Queensland Coastal Management District, State of Queensland (Department of Environment, Tourism, Science and Innovation), Creative Commons Attribution 4.0, retrieved 2026-10-23
This is a share of the suburb's land area from a published state dataset, not an assessment of any property. A ClimateNest report scores the individual address across eight hazards, with insurance and value projections to 2050.
Check an address in Mackay Harbour →Flood Risk in Mackay Harbour, QLD: 2026 Assessment
62.1% of Mackay Harbour is mapped as part of the Queensland coastal management district (coastal management district declared under the Coastal Management Act 2016)
That figure covers the suburb. Check whether your address is inside it - address-level, sourced, A$49.
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Flood Risk Score
Not assessedMackay Harbour faces a notable risk of flooding due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to riverine and flash flooding.
Key Facts
- Flood Risk
- Mackay Harbour faces a notable risk of flooding due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to riverine and flash flooding.
- Trend
- increasing
- Suburb
- Mackay Harbour, QLD
- Overall Risk
- Medium
- Postcode
- 4740
Flood Risk Analysis
Mackay Harbour, located in Queensland, has a location-specific 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 frequent inundation of low-lying areas during heavy rainfall events.
Mackay Harbour faces a notable risk of flooding due to its low-lying coastal location and proximity to waterways. Intense rainfall events can lead to riverine and 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.
ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Mackay Harbour. An address-level check is what tells you about a specific property before you buy, sell or insure it.
Local Hazard Evidence
Historical Events
Heavy rainfall associated with a tropical low caused flash flooding in low-lying areas of Mackay Harbour.
Heavy rainfall caused widespread flooding in Mackay, including Mackay Harbour, disrupting transport and damaging property.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flash flooding.
Est. cost: High
Construct Coastal Defenses
Long-termBuild seawalls and other coastal defenses to protect against sea level rise and storm surge.
Est. cost: Very High
Implement Heatwave Early Warning System
ImmediateDevelop and implement a heatwave early warning system to alert residents to impending heatwaves and provide advice on how to stay safe.
Est. cost: Low
Promote Water Conservation
Near-termEncourage residents to conserve water to reduce demand on water resources during droughts.
Est. cost: Low
Council & Emergency Services
Explore Mackay Harbour Risk Reports
View other climate risk assessments for Mackay Harbour:
Frequently Asked Questions
Is Mackay Harbour at risk of flooding?
Based on available data, Mackay Harbour has a location-specific 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 Mackay Harbour?
Insurance costs for flood cover in Mackay Harbour 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 Mackay Harbour?
Yes, flood risk can affect property values in Mackay Harbour. 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 Mackay Harbour?
Elevation is a critical factor in flood risk. Properties at higher elevations within Mackay Harbour 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.
Is Mackay Harbour Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Mackay Harbour, Queensland, covering flood, bushfire, sea level rise and more.
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Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections