
France's first climate-insurance map reveals 903 communes where home cover is under strain
A report by France's public reinsurer shows 97.7% of the country's 35,000 communes have no difficulty finding home insurance, but identifies 903 communes — clustered in the east, Massif Central, Corsica and overseas territories — where supply is lightly or moderately strained.
The first nationwide map
France's Observatoire de l'assurabilité, the public reinsurance body, has published its first commune-by-commune map of access to multi-risk home insurance for detached houses. The data, released on Monday, cross-references the presence of insurers with exposure to three natural-disaster perils: cyclones, floods, and clay shrinkage-swelling (RGA), which weakens buildings on clay soils.
Where the gaps are
In 97.7% of the roughly 35,000 French communes, policyholders can choose among thirty or more insurers with no difficulty. The report nonetheless flags 903 communes (2.3% of the total) where supply is thinner. Of those, 568 face "light" supply tension and 335 face "moderate" tension. The geographical pattern is uneven: tensions are concentrated in eastern France, the Massif Central, Corsica, and across all communes in the overseas departments and regions.
- No difficulty
- 34097
- Light tension
- 568
- Moderate tension
- 335
The reinsurer's warning
Edouard Vieillefond, director general of the Caisse centrale de réassurance, delivered that assessment in the report's introduction. The analysis notes that in some places the thin supply reflects low demand rather than climate risk, but in the overseas territories the link to cyclone exposure is direct.The initial findings call for heightened vigilance. Weak tension signals are emerging locally, especially in certain overseas territories and exposed metropolitan communes.
Government response
The French government announced it will launch a mission to overseas territories to "identify solutions" for specific risks such as cyclones. The report, long awaited and somewhat feared by the insurance industry, is expected to frame discussions on the future of the natural-disaster compensation regime as climate-related events become more frequent.


