๐Ÿ“ฎ Narangba postcode: 4504

Flood Risk in Narangba, QLD: 2026 Assessment

Narangba, Queenslandยท Moreton Bay Regionalยท 4504
Narangba faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.Updated 22 Mar 2026

Flood Risk Score

6.5/10

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

Key Facts

Flood Risk
Narangba faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
Trend
increasing
Suburb
Narangba, QLD
Overall Risk
Medium
Postcode
4504
Highest high-risk exposure
15.9% of land (bushfire)

Flood Risk Analysis

Narangba, 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.

Some areas near Narangba Creek are prone to flash flooding during heavy rainfall events.

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

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.

Narangba sits within ClimateNest's suburb-level hazard model for flood risk. 10.5% of the suburb's land area is mapped in high-risk flood zones and 71.9% 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 Narangba.

Narangba (postcode 4504) 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 (15.9% of land in high-risk zones), extreme wind (14.8% of land in high-risk zones), tropical cyclone (10.6% of land in high-risk zones). Exposure is not uniform across Narangba 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 WaterwayNarangba Creek
Elevation Range10-40m
Flood Zone ClassificationMedium

Historical Events

2022
Moderate

Heavy rainfall caused flash flooding in Narangba, disrupting traffic and damaging properties.

2011
Major

The 2011 Brisbane floods caused significant inundation in parts of Narangba, particularly along Narangba Creek.

Adaptation & Mitigation Actions

Improve stormwater drainage

Near-term

Upgrade stormwater drainage infrastructure to reduce flood risk during heavy rainfall events.

Est. cost: Medium

Implement a heat action plan

Near-term

Develop and implement a heat action plan to protect vulnerable populations during heatwaves.

Est. cost: Low

Bushfire risk mitigation

Near-term

Undertake controlled burns and vegetation management to reduce bushfire risk in high-risk areas.

Est. cost: Medium

Community awareness programs

Long-term

Conduct community awareness programs to educate residents about climate risks and adaptation measures.

Est. cost: Low

Promote water conservation

Long-term

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

Est. cost: Low

Council & Emergency Services

Moreton Bay Regional Council
Emergency Services

Data last updated: 22 March 2026

Explore Narangba Risk Reports

Frequently Asked Questions

Is Narangba at risk of flooding?

Based on available data, Narangba 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 Narangba?

Insurance costs for flood cover in Narangba 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 Narangba?

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

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

ClimateNest's hazard overlay maps 15.9% of Narangba in high-risk zones for bushfire, with a further 61.2% 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 Narangba Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Narangba, Queensland, 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