Flood Risk in Harvey, WA: 2026 Assessment

Harvey, located in Western Australia, 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 Western Australia.

The Harvey River has a history of flooding during periods of heavy rainfall. The local council maintains flood maps and provides information to residents on how to prepare for floods.

Harvey is located near the Harvey River and coastal areas, making it susceptible to flooding from heavy rainfall and storm surges. Climate change is expected to increase the intensity of rainfall events, 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.

Harvey sits within ClimateNest's suburb-level hazard model for flood risk. 4.4% of the suburb's land area is mapped in high-risk flood zones and 85.1% 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 Harvey.

Harvey (postcode 6220) 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 (8.7% of land in high-risk zones), surface flood (8% of land in high-risk zones), tropical cyclone (6.1% of land in high-risk zones). Exposure is not uniform across Harvey — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.