Flood Risk in Richmond, SA: 2026 Assessment

Richmond, South Australia· UNKNOWN
Richmond faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The Patawalonga River, while not directly within Richmond, can influence local drainage patterns.Updated 1 Apr 2026

Flood Risk Score

4.0/10

Richmond faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The Patawalonga River, while not directly within Richmond, can influence local drainage patterns.

Key Facts

Flood Risk
Richmond faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The Patawalonga River, while not directly within Richmond, can influence local drainage patterns.
Trend
increasing
Suburb
Richmond, SA
Overall Risk
Medium
Postcode
5033
Highest high-risk exposure
12.1% of land (bushfire)

Flood Risk Analysis

Richmond, located in South Australia, 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 South Australia.

Historical records indicate localized flooding during periods of intense rainfall. Council is actively managing stormwater infrastructure.

Richmond faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The Patawalonga River, while not directly within Richmond, can influence local drainage patterns.

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.

Richmond sits within ClimateNest's suburb-level hazard model for flood risk. 1.2% of the suburb's land area is mapped in high-risk flood zones and 89.7% 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 Richmond.

Richmond (postcode 5033) 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 (12.1% of land in high-risk zones), surface flood (8.2% of land in high-risk zones), extreme wind (5.1% of land in high-risk zones). Exposure is not uniform across Richmond — 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 WaterwayPatawalonga River
Elevation Range5-10 meters
Flood Zone ClassificationLow-lying areas near drainage lines

Historical Events

2022
Minor

Heavy rainfall events led to localized flooding in some low-lying areas of Richmond, causing minor disruptions.

Adaptation & Mitigation Actions

Implement urban greening initiatives

Near-term

Increase tree canopy cover and green spaces to reduce the urban heat island effect and provide shade during heatwaves.

Est. cost: Medium

Upgrade stormwater infrastructure

Near-term

Improve drainage systems to manage increased rainfall intensity and reduce the risk of localized flooding.

Est. cost: High

Develop a heatwave response plan

Immediate

Establish a community-based plan to support vulnerable residents during heatwaves, including cooling centers and outreach programs.

Est. cost: Low

Promote water-sensitive urban design

Long-term

Encourage the use of permeable pavements and rainwater harvesting to reduce stormwater runoff and conserve water resources.

Est. cost: Medium

Community awareness programs

Near-term

Educate residents about climate risks and adaptation measures they can take at home.

Est. cost: Low

Council & Emergency Services

City of West Torrens
Emergency Services

Data last updated: 1 April 2026

Explore Richmond Risk Reports

Frequently Asked Questions

Is Richmond at risk of flooding?

Based on available data, Richmond 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 Richmond?

Insurance costs for flood cover in Richmond 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 Richmond?

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

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

ClimateNest's hazard overlay maps 12.1% of Richmond in high-risk zones for bushfire, with a further 80.5% 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 Richmond Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Richmond, South Australia, 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