Delaware natural disaster risk
Ratings for all 3 counties, the federal disaster record and flood insurance across the state.
19major disasters since 1953 (50th most)
$377Mexpected losses a year
5%of homes with flood insurance
Delaware has had 19 major federal disaster declarations for natural events since 1953. FEMA expects about $377 million a year in losses from natural hazards across the state. Inland flooding is the costliest hazard in 3 of its 3 counties. None is rated Very High overall. About 5% of homes carry federal flood insurance, and the program has paid $90.7 million on 6,258 claims here since 1978.
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Top hazards
Inland floodingtop risk in 3 counties
Cities in Delaware
All 3 cities ›All 3 counties
| Name | People | Overall risk | Top hazard | Declarations | Homes insured |
|---|---|---|---|---|---|
| Kent County | 181,705 | Inland flooding | 15 | 1.3% | |
| New Castle County | 570,089 | Inland flooding | 15 | 0.9% | |
| Sussex County | 237,214 | Inland flooding | 18 | 12.7% |
Linked names have a full page. Overall risk from the FEMA National Risk Index (December 2025); declarations are federal disaster and emergency declarations for natural events since 1953 (OpenFEMA); homes insured is the share with NFIP flood policies.