Flood Risk in Crowther, NSW: 2026 Assessment

Crowther, New South Wales· Hilltops Council
Crowther faces a moderate risk of flooding due to its location within the Lachlan River catchment. Intense rainfall events can lead to riverine and flash flooding.Updated 30 May 2026

Flood Risk Score

6.0/10

Crowther faces a moderate risk of flooding due to its location within the Lachlan River catchment. Intense rainfall events can lead to riverine and flash flooding.

Key Facts

Flood Risk
Crowther faces a moderate risk of flooding due to its location within the Lachlan River catchment. Intense rainfall events can lead to riverine and flash flooding.
Trend
increasing
Suburb
Crowther, NSW
Overall Risk
Medium
Postcode
2803
Region
Regional NSW
Median property value
$550,000
Dominant hazard
extreme heat (6/10)
Highest high-risk exposure
20.8% of land (bushfire)

Flood Risk Analysis

Crowther, 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 Crowther has experienced several significant flood events in the past.

Crowther faces a moderate risk of flooding due to its location within the Lachlan River catchment. 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.

Crowther sits within ClimateNest's suburb-level hazard model for flood risk. 8% of the suburb's land area is mapped in high-risk flood zones and 80.9% 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.

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

Crowther located in Regional NSW (postcode 2803), 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 Crowther.

Across the six hazard axes ClimateNest models, the dominant climate risk in Crowther 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 Crowther, 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 are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayLachlan River
Elevation Range280-320m
Flood Zone ClassificationAreas adjacent to the Lachlan River are prone to flooding.

Historical Events

2022
Moderate

Heavy rainfall led to localized flooding in low-lying areas of Crowther.

2016
Moderate

Significant rainfall caused flooding in the Lachlan River catchment, affecting Crowther and surrounding areas.

Adaptation & Mitigation Actions

Develop a household emergency plan

Immediate

Prepare a plan for how to respond to different types of emergencies, such as floods, bushfires, and heatwaves.

Est. cost: Low

Maintain your property to reduce fire risk

Near-term

Clear gutters, remove flammable materials from around the house, and keep lawns short.

Est. cost: Low

Install a rainwater tank

Long-term

Collect rainwater for use in the garden and for flushing toilets.

Est. cost: Medium

Improve home insulation

Near-term

Insulate walls and ceilings to reduce energy consumption and improve comfort during heatwaves.

Est. cost: Medium

Support local climate action initiatives

Long-term

Participate in community efforts to reduce greenhouse gas emissions and adapt to climate change.

Est. cost: Low

Council & Emergency Services

Hilltops Council
Emergency Services

Data last updated: 30 May 2026

Explore Crowther Risk Reports

Frequently Asked Questions

Is Crowther at risk of flooding?

Based on available data, Crowther 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 Crowther?

Insurance costs for flood cover in Crowther 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 Crowther?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Crowther 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 Crowther?

ClimateNest's suburb model rates Crowther'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 Crowther.

What share of Crowther is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 20.8% of Crowther in high-risk zones for bushfire, with a further 66.8% 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 Crowther Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Crowther, 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