๐Ÿ“ฎ Wentworthville postcode: 2145

Flood Risk in Wentworthville, NSW: 2026 Assessment

Wentworthville, New South Walesยท City of Parramattaยท 2145
Wentworthville faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.Updated 10 May 2026

Flood Risk Score

6.5/10

Wentworthville faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Key Facts

Flood Risk
Wentworthville faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.
Trend
increasing
Suburb
Wentworthville, NSW
Overall Risk
Medium
Postcode
2145
Highest high-risk exposure
19.3% of land (bushfire)

Flood Risk Analysis

Wentworthville, 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 that properties near the creek have experienced inundation during heavy rainfall events.

Wentworthville faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

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.

Wentworthville sits within ClimateNest's suburb-level hazard model for flood risk. 11.4% of the suburb's land area is mapped in high-risk flood zones and 60.4% 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 Wentworthville.

Wentworthville (postcode 2145) 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 (19.3% of land in high-risk zones), riverine flood (11.4% of land in high-risk zones), surface flood (10.6% of land in high-risk zones). Exposure is not uniform across Wentworthville โ€” 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

Nearest WaterwayToongabbie Creek
Elevation Range20-40m
Flood Zone ClassificationAreas near Toongabbie Creek are prone to flooding.

Historical Events

2022
Moderate

Heavy rainfall caused flash flooding in parts of Wentworthville, affecting local businesses and residences.

2011
Moderate

Significant flooding impacted Wentworthville, leading to road closures and property damage.

Adaptation & Mitigation Actions

Improve Home Insulation

Near-term

Proper insulation can reduce energy consumption for cooling and heating, making homes more comfortable during extreme weather events.

Est. cost: $2,000 - $5,000

Install Rainwater Tanks

Near-term

Rainwater tanks can capture rainwater for non-potable uses, reducing demand on mains water supply and mitigating flood risk.

Est. cost: $1,000 - $3,000

Plant Trees and Green Spaces

Long-term

Increasing green spaces can help reduce the urban heat island effect and provide shade during heatwaves.

Est. cost: Varies

Upgrade Drainage Infrastructure

Immediate

Investing in improved drainage systems can help mitigate the risk of flooding during heavy rainfall events.

Est. cost: Significant investment required

Develop Community Emergency Plans

Immediate

Establish community-based emergency plans to prepare for and respond to climate-related disasters.

Est. cost: Low

Council & Emergency Services

City of Parramatta Council
Emergency Services

Data last updated: 10 May 2026

Explore Wentworthville Risk Reports

Frequently Asked Questions

Is Wentworthville at risk of flooding?

Based on available data, Wentworthville has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Wentworthville?

Insurance costs for flood cover in Wentworthville 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 Wentworthville?

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

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

ClimateNest's hazard overlay maps 19.3% of Wentworthville in high-risk zones for bushfire, with a further 67.6% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Wentworthville Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Wentworthville, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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