The New Climate Divide
Five charts on the Australian homes becoming too risky to insure
Australia’s next inequality crisis may not be rent or groceries — it may be whether you can afford to insure your home. As floods, storms, bushfires and cyclones intensify, the cost of cover is splitting the country in two: households that can absorb rising premiums, and households being priced out — left to carry the risk of disaster themselves. These five charts trace that divide: where it is sharpest, who it hits hardest, and how far it could widen.
Insurance stress is climbing fast
The share of households spending an unaffordable amount on home insurance has jumped in just three years, reaching 1.61 million households in 2024 — a 30% rise in a single year.
Source: Actuaries Institute (2024). 2024 is highlighted in tomato.
In three years, affordability stress rose by half — from 10% to 15% of households.
The communities already on the front line
Behind the percentages are large numbers of homes. Each bar stacks the high-risk and medium-risk properties in the ten most exposed federal electorates. Riverine flooding drives roughly 80% of the risk, and this is not only a Queensland problem — Victoria, New South Wales and South Australia also appear.
Source: Climate Council of Australia, Uninsurable Nation (2022).
Single electorates already contain tens of thousands of high- and medium-risk homes — and the risk spans four states.
The gap between protected and exposed homes
Today around 15% of households face high affordability pressure. Under current emissions policies, that could reach around a quarter of all households by 2050 — roughly a million more homes pushed toward going without cover.
Source: APRA, Mind the Gap: An Insurance Climate Vulnerability Assessment (2026). “No extra” means no additional climate change; “Current” means Current Policies Scenario; “Delayed” means Delayed Transition Scenario.
APRA’s stress test suggests the protection gap could widen from 15% today to around one in four households by 2050.
Disasters already cost billions
Bigger disasters cost more, but not in a simple way. This plots each recent event’s total claims cost against the number of claims lodged, coloured by hazard type — the spread shows how a single cyclone or storm season can dominate the bill.
Source: Insurance Council of Australia Data Hub (2026).
A single cyclone and one storm season drove the largest recent payouts and the highest claim volumes — pressure that flows back into premiums.
What this means
Climate change is no longer only an environmental story. It is becoming a household financial story. The same hazards driving record insured losses are pushing premiums beyond reach for a growing share of Australians. Without stronger investment in flood mitigation, resilient housing, smarter land-use planning and emissions reduction, the line between protected and exposed homes may harden into a permanent climate divide. The warning is clear: insurance affordability is becoming an early signal of where climate risk is already reshaping everyday life.
References
Actuaries Institute. (2024). Home insurance affordability and home loans at risk. https://www.actuaries.asn.au/research-analysis/thought-leadership/home-insurance-affordability-and-home-loans-at-risk
Australian Prudential Regulation Authority. (2026). Mind the gap: An insurance climate vulnerability assessment. https://www.apra.gov.au/mind-gap-an-insurance-climate-vulnerability-assessment
Climate Council of Australia. (2022). Uninsurable nation: Australia’s most climate-vulnerable places. https://www.climatecouncil.org.au/resources/uninsurable-nation-australias-most-climate-vulnerable-places/
Insurance Council of Australia. (2026). Insurance Council of Australia data hub. https://insurancecouncil.com.au/industry-members/data-hub/
Acknowledgement of generative AI
I acknowledge the use of Claude AI and ChatGPT for planning support, code troubleshooting, formatting assistance and wording refinement. The data sources were selected and checked by me, and I made the final decisions about the story angle, chart selection, interpretation and submission content.