Flood Risk in Crowther Island, NSW: 2026 Assessment

Crowther Island, located in New South Wales, 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 New South Wales.

Historical flood data indicates frequent inundation of low-lying areas.

Crowther Island is highly susceptible to flooding due to its low elevation and proximity to waterways. Riverine and flash flooding are potential concerns.

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.

Crowther Island sits within ClimateNest's suburb-level hazard model for flood risk. 6.2% of the suburb's land area is mapped in high-risk flood zones and 76.9% 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 Crowther Island.

On ClimateNest's 0–10 suburb hazard index, Crowther Island scores 4 for flood risk — a moderate exposure relative to the Australian suburb range. For comparison, properties in Crowther Island can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Crowther Island located in Coastal NSW (postcode 2460), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $925,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Crowther Island.

Across the six hazard axes ClimateNest models, the dominant climate risk in Crowther Island is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+30% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Crowther Island, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Crowther Island are increasingly made with an address-level climate report in hand.