Flood Risk in Macgregor, QLD: 2026 Assessment

Macgregor, Queensland
Elevated flood risk — tropical rainfall, riverine and flash flooding commonUpdated 27 June 2026

Flood Risk Score

4.6/10

Elevated flood risk — tropical rainfall, riverine and flash flooding common

Key Facts

Flood Risk
Elevated flood risk — tropical rainfall, riverine and flash flooding common
Trend
increasing
Suburb
Macgregor, QLD
Overall Risk
Moderate
Postcode
4109
Highest high-risk exposure
18.5% of land (riverine flood)

Flood Risk Analysis

Macgregor, located in Queensland, has a moderate 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.

Flood risk in Macgregor is shaped by local topography and catchment characteristics. Even within a single suburb, elevation differences can significantly change flood exposure. Properties near waterways or in low-lying areas warrant closer assessment.

Elevated flood risk — tropical rainfall, riverine and flash flooding common

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.

Macgregor sits within ClimateNest's suburb-level hazard model for flood risk. 18.5% of the suburb's land area is mapped in high-risk flood zones and 70.3% 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 Macgregor.

Macgregor (postcode 4109) 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 (18.5% of land in high-risk zones), tropical cyclone (16% of land in high-risk zones), extreme wind (12.5% of land in high-risk zones). Exposure is not uniform across Macgregor — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Explore Macgregor Risk Reports

Frequently Asked Questions

Is Macgregor at risk of flooding?

Based on available data, Macgregor has a moderate 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 Macgregor?

Insurance costs for flood cover in Macgregor 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 Macgregor?

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

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

ClimateNest's hazard overlay maps 18.5% of Macgregor in high-risk zones for riverine flood, with a further 70.3% 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 Macgregor Safe from Climate Risk?

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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 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections