Delaware hurricane risk
Sussex County has the highest hurricane risk in Delaware, scoring 97.2 out of 100 — rated "Relatively High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Sussex County | 97.2 | Relatively High | 0 |
| 2 | Kent County | 91.3 | Relatively Moderate | 0 |
| 3 | New Castle County | 88.4 | Relatively Moderate | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Hurricane risk nationally:
Other hazard risks in Delaware:
Frequently asked questions
What is the highest hurricane risk county in Delaware?
Sussex County, DE has the highest hurricane risk in Delaware, with a FEMA National Risk Index score of 97.2 out of 100 (rated "Relatively High").
What causes hurricane risk in Delaware?
Hurricane risk covers expected annual losses from tropical cyclone winds — storm surge is captured separately under coastal flooding. High scores concentrate along the Gulf Coast and Atlantic Seaboard from Texas through New England, with Florida's peninsula and barrier islands typically leading national rankings. The NRI score also accounts for population exposure and community resilience.