Flood Risk in Barrengarry, NSW: 2026 Assessment

Barrengarry, New South Wales· UNKNOWN
Barrengarry faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding and riverine flooding.Updated 25 May 2026

Flood Risk Score

6.5/10

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

Key Facts

Flood Risk
Barrengarry faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to flash flooding and riverine flooding.
Trend
increasing
Suburb
Barrengarry, NSW
Overall Risk
Medium
Postcode
2577
Region
Regional NSW
Median property value
$550,000
Dominant hazard
extreme heat (6/10)
Highest high-risk exposure
20.6% of land (bushfire)

Flood Risk Analysis

Barrengarry, 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.

Some properties are located in areas prone to flash flooding.

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

Barrengarry sits within ClimateNest's suburb-level hazard model for flood risk. 9.8% of the suburb's land area is mapped in high-risk flood zones and 64.8% 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 Barrengarry.

On ClimateNest's 0–10 suburb hazard index, Barrengarry scores 3 for flood risk — a lower exposure relative to the Australian suburb range. For comparison, properties in Barrengarry can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Barrengarry located in Regional NSW (postcode 2577), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $550,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Barrengarry.

Across the six hazard axes ClimateNest models, the dominant climate risk in Barrengarry is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% 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 Barrengarry, 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 Barrengarry are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayNepean River
Elevation Range100-150m
Flood Zone ClassificationPartially within flood zone

Historical Events

2017
Minor

Flash flooding occurred in Barrengarry due to heavy rainfall.

2011
Moderate

Major flooding along the Nepean River affected low-lying areas of Barrengarry.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce the risk of flash flooding.

Est. cost: High

Bushfire Risk Mitigation

Immediate

Implement bushfire risk mitigation measures, such as vegetation management and fire breaks, to protect properties from bushfires.

Est. cost: Medium

Heatwave Preparedness

Near-term

Develop a heatwave preparedness plan to protect vulnerable populations during heatwaves, including establishing cooling centers and providing public awareness campaigns.

Est. cost: Low

Community Education Programs

Long-term

Conduct community education programs to raise awareness of climate risks and promote adaptation measures.

Est. cost: Low

Council & Emergency Services

Wingecarribee Shire Council
Emergency Services

Data last updated: 25 May 2026

Explore Barrengarry Risk Reports

Frequently Asked Questions

Is Barrengarry at risk of flooding?

Based on available data, Barrengarry 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 Barrengarry?

Insurance costs for flood cover in Barrengarry 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 Barrengarry?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Barrengarry 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 are the main climate risks in Barrengarry?

ClimateNest's suburb model rates Barrengarry's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by bushfire (5/10) and damaging wind (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Barrengarry.

What share of Barrengarry is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 20.6% of Barrengarry in high-risk zones for bushfire, with a further 67.1% 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 Barrengarry Safe from Climate Risk?

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

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