Natural Hazard Risk in Delaware
The risk score (0–100) combines expected annual loss from 18 natural hazards with social vulnerability and community resilience. Higher = greater relative risk. Scores compare counties across the United States.
See what's happening right now on the live map →| County | Risk score | Rating | Expected annual loss | Population |
|---|---|---|---|---|
| New Castle | 95.3 | Relatively High | $202.2M | 570,089 |
| Sussex | 94.1 | Relatively Moderate | $119.3M | 237,214 |
| Kent | 84.5 | Relatively Moderate | $55.8M | 181,705 |
🏛️ Federal disaster declarations (last 2 years)
DRSEVERE WINTER STORMMay 29, 2026
Winter Storm · Designated areas: Kent (County), Sussex (County)
Major disaster (DR) and emergency (EM) declarations unlock federal assistance for the designated areas. Source: FEMA / OpenFEMA.
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Data: FEMA National Risk Index (updated ~annually). AlertAtlas is not an official warning service — always follow local authorities.