Flood Risk in Mount Cotton, QLD: 2026 Assessment

Mount Cotton, 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 near the creek. Council provides flood maps and guidance for residents.

Mount Cotton faces a moderate risk of flooding, primarily from heavy rainfall events and overflowing of local waterways. The risk is expected to increase due to climate change.

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.

Mount Cotton sits within ClimateNest's suburb-level hazard model for flood risk. 14.3% of the suburb's land area is mapped in high-risk flood zones and 72.1% 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 Mount Cotton.

Mount Cotton (postcode 4165) 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 tropical cyclone (15.9% of land in high-risk zones), riverine flood (14.3% of land in high-risk zones), extreme wind (8.7% of land in high-risk zones). Exposure is not uniform across Mount Cotton — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.