Flood Risk in Lake Brewster, NSW: 2026 Assessment

Lake Brewster, New South Wales· Lachlan
Lake Brewster is susceptible to flooding due to its proximity to the lake and surrounding waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.Updated 31 May 2026

Flood Risk Score

6.0/10

Lake Brewster is susceptible to flooding due to its proximity to the lake and surrounding waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Key Facts

Flood Risk
Lake Brewster is susceptible to flooding due to its proximity to the lake and surrounding waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
Trend
increasing
Suburb
Lake Brewster, NSW
Overall Risk
Medium
Postcode
2675
Highest high-risk exposure
11.2% of land (riverine flood)

Flood Risk Analysis

Lake Brewster, 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 of low-lying areas around the lake.

Lake Brewster is susceptible to flooding due to its proximity to the lake and surrounding waterways. 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.

Lake Brewster sits within ClimateNest's suburb-level hazard model for flood risk. 11.2% of the suburb's land area is mapped in high-risk flood zones and 77.7% 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 Lake Brewster.

Lake Brewster (postcode 2675) 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 riverine flood (11.2% of land in high-risk zones), bushfire (9.7% of land in high-risk zones), extreme wind (6.3% of land in high-risk zones). Exposure is not uniform across Lake Brewster — 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 WaterwayLake Brewster
Elevation Range80-90m
Flood Zone ClassificationLikely

Historical Events

2017
Minor

Minor flooding occurred in low-lying areas around Lake Brewster following heavy rainfall.

2010
Moderate

Major flooding event impacted the Lachlan Shire, including areas around Lake Brewster, causing property damage and road closures.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in improved drainage infrastructure and flood levees to protect properties from inundation.

Est. cost: High

Develop a Heat Action Plan

Immediate

Implement a heat action plan to protect vulnerable populations during heatwaves, including cooling centers and community outreach programs.

Est. cost: Medium

Bushfire Risk Mitigation

Near-term

Implement bushfire risk mitigation measures, such as vegetation management and community education programs.

Est. cost: Medium

Water Resource Management

Long-term

Implement sustainable water resource management practices to address drought risks and ensure water security.

Est. cost: High

Council & Emergency Services

Lachlan Shire Council
Emergency Services

Data last updated: 31 May 2026

Explore Lake Brewster Risk Reports

Frequently Asked Questions

Is Lake Brewster at risk of flooding?

Based on available data, Lake Brewster 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 Lake Brewster?

Insurance costs for flood cover in Lake Brewster 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 Lake Brewster?

Yes, flood risk can affect property values in Lake Brewster. 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 Lake Brewster?

Elevation is a critical factor in flood risk. Properties at higher elevations within Lake Brewster 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 Lake Brewster is exposed to high riverine flood risk?

ClimateNest's hazard overlay maps 11.2% of Lake Brewster in high-risk zones for riverine flood, with a further 77.7% 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 Lake Brewster Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Lake Brewster, 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 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections