Flood Risk in Numbaa, NSW: 2026 Assessment
Flood Risk Score
6.0/10Numbaa faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
Key Facts
- Flood Risk
- Numbaa faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
- Trend
- increasing
- Suburb
- Numbaa, NSW
- Overall Risk
- Medium
- Postcode
- 2540
- Highest high-risk exposure
- 14.3% of land (bushfire)
Flood Risk Analysis
Numbaa, 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 inundation in low-lying areas near the Shoalhaven River.
Numbaa faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, 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.
Numbaa sits within ClimateNest's suburb-level hazard model for flood risk. 7.6% of the suburb's land area is mapped in high-risk flood zones and 68.3% 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 Numbaa.
Numbaa (postcode 2540) 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 (14.3% of land in high-risk zones), riverine flood (7.6% of land in high-risk zones), extreme wind (5.6% of land in high-risk zones). Exposure is not uniform across Numbaa — 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
Historical Events
Significant rainfall led to flash flooding and riverine flooding in the area.
Major flooding of the Shoalhaven River caused widespread inundation in low-lying areas.
Adaptation & Mitigation Actions
Upgrade Drainage Infrastructure
Near-termImprove drainage systems to mitigate flood risk from increased rainfall intensity.
Est. cost: Medium
Implement Bushfire Management Strategies
Near-termReduce fuel loads and improve firebreaks to minimize bushfire risk.
Est. cost: Medium
Develop Heatwave Action Plan
ImmediateEstablish a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Low
Protect Coastal Areas
Long-termImplement coastal protection measures, such as seawalls and beach nourishment, to mitigate erosion and inundation.
Est. cost: High
Council & Emergency Services
Explore Numbaa Risk Reports
View other climate risk assessments for Numbaa:
Frequently Asked Questions
Is Numbaa at risk of flooding?
Based on available data, Numbaa has a notable 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 Numbaa?
Insurance costs for flood cover in Numbaa 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 Numbaa?
Yes, flood risk can affect property values in Numbaa. 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 Numbaa?
Elevation is a critical factor in flood risk. Properties at higher elevations within Numbaa 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 Numbaa is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 14.3% of Numbaa in high-risk zones for bushfire, with a further 55.7% 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 Numbaa Safe from Climate Risk?
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