Flood Risk in Mypolonga, SA: 2026 Assessment

Mypolonga, South Australia· UNKNOWN
Mypolonga faces a moderate risk of flooding due to its proximity to the Murray River and low-lying areas. Riverine flooding is the primary concern.Updated 31 Mar 2026

Flood Risk Score

6.5/10

Mypolonga faces a moderate risk of flooding due to its proximity to the Murray River and low-lying areas. Riverine flooding is the primary concern.

Key Facts

Flood Risk
Mypolonga faces a moderate risk of flooding due to its proximity to the Murray River and low-lying areas. Riverine flooding is the primary concern.
Trend
increasing
Suburb
Mypolonga, SA
Overall Risk
Medium
Postcode
5254
Highest high-risk exposure
10.4% of land (bushfire)

Flood Risk Analysis

Mypolonga, 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 flood events have impacted Mypolonga, causing damage to property and infrastructure.

Mypolonga faces a moderate risk of flooding due to its proximity to the Murray River and low-lying areas. Riverine flooding is the primary concern.

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.

Mypolonga sits within ClimateNest's suburb-level hazard model for flood risk. 3.4% of the suburb's land area is mapped in high-risk flood zones and 83.5% 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 Mypolonga.

Mypolonga (postcode 5254) 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 (10.4% of land in high-risk zones), surface flood (8.6% of land in high-risk zones), extreme wind (3.8% of land in high-risk zones). Exposure is not uniform across Mypolonga — 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 WaterwayMurray River
Elevation Range10-20 meters
Flood Zone ClassificationAreas adjacent to the Murray River are prone to flooding.

Historical Events

1956
Major

The 1956 Murray River flood was one of the largest on record, causing widespread inundation in Mypolonga and surrounding areas.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to protect against flooding, such as levees and improved drainage systems.

Est. cost: High

Develop a Heat Action Plan

Immediate

Implement a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Medium

Enhance Bushfire Preparedness

Long-term

Implement measures to reduce bushfire risk, such as controlled burns and community education programs.

Est. cost: Medium

Promote Water Conservation

Near-term

Encourage water conservation practices to mitigate the impacts of drought.

Est. cost: Low

Council & Emergency Services

Mid Murray Council
Emergency Services

Data last updated: 31 March 2026

Explore Mypolonga Risk Reports

Frequently Asked Questions

Is Mypolonga at risk of flooding?

Based on available data, Mypolonga 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 Mypolonga?

Insurance costs for flood cover in Mypolonga 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 Mypolonga?

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

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

ClimateNest's hazard overlay maps 10.4% of Mypolonga in high-risk zones for bushfire, with a further 69.1% 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 Mypolonga Safe from Climate Risk?

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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