๐Ÿ“ฎ Petrie postcode: 4502

Flood Risk in Petrie, QLD: 2026 Assessment

Petrie, Queenslandยท Moreton Bay Regionalยท 4502
Petrie is located near the North Pine River and is susceptible to flooding from heavy rainfall events. Climate change is expected to increase the intensity of rainfall, leading to more frequent and severe flooding.Updated 22 Mar 2026

Flood Risk Score

6.5/10

Petrie is located near the North Pine River and is susceptible to flooding from heavy rainfall events. Climate change is expected to increase the intensity of rainfall, leading to more frequent and severe flooding.

Key Facts

Flood Risk
Petrie is located near the North Pine River and is susceptible to flooding from heavy rainfall events. Climate change is expected to increase the intensity of rainfall, leading to more frequent and severe flooding.
Trend
increasing
Suburb
Petrie, QLD
Overall Risk
Medium
Postcode
4502
Highest high-risk exposure
18.9% of land (riverine flood)

Flood Risk Analysis

Petrie, 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 properties along the North Pine River. Council flood maps indicate areas at risk.

Petrie is located near the North Pine River and is susceptible to flooding from heavy rainfall events. Climate change is expected to increase the intensity of rainfall, leading to more frequent and severe 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.

Petrie sits within ClimateNest's suburb-level hazard model for flood risk. 18.9% of the suburb's land area is mapped in high-risk flood zones and 55.3% 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 Petrie.

Petrie (postcode 4502) 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 riverine flood (18.9% of land in high-risk zones), tropical cyclone (17.1% of land in high-risk zones), bushfire (9.9% of land in high-risk zones). Exposure is not uniform across Petrie 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 WaterwayNorth Pine River
Elevation Range10-30 meters
Flood Zone ClassificationMedium to High Risk

Historical Events

2011
Major

The 2011 Brisbane floods caused significant inundation along the North Pine River, impacting properties in Petrie.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to mitigate flood risk, such as levees, drainage improvements, and flood-proofing of buildings.

Est. cost: High

Develop Heatwave Management Plan

Immediate

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

Est. cost: Medium

Reduce Bushfire Fuel Loads

Near-term

Conduct regular vegetation management to reduce the risk of bushfires, particularly in areas adjacent to bushland.

Est. cost: Low

Promote Water Conservation

Long-term

Encourage residents and businesses to conserve water through education and incentives, reducing strain on water resources during droughts.

Est. cost: Low

Council & Emergency Services

Moreton Bay Regional Council
Emergency Services

Data last updated: 22 March 2026

Explore Petrie Risk Reports

Frequently Asked Questions

Is Petrie at risk of flooding?

Based on available data, Petrie 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 Petrie?

Insurance costs for flood cover in Petrie 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 Petrie?

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

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

ClimateNest's hazard overlay maps 18.9% of Petrie in high-risk zones for riverine flood, with a further 55.3% 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 Petrie Safe from Climate Risk?

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