Rockland County
New York — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 88th
Rockland County faces medium composite natural disaster risk (NRI Risk Index score 88.4, 88th national percentile), driven primarily by strong wind and winter weather exposure. Expected annual loss across all 18 hazard types is $60M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Strong Wind | High | 5.06 / yr | $3M |
| Winter Weather | High | 13.08 / yr | $537K |
| Riverine Flood | Medium | 2.93 / yr | $38M |
| Lightning | High | 29.67 / yr | $1M |
| Heat Wave | Medium | 6.18 / yr | $3M |
| Earthquake | Low | 0.00 / yr | $4M |
| Cold Wave | Medium | 1.05 / yr | $4M |
| Hurricane | Medium | 0.11 / yr | $3M |
| Ice Storm | Medium | 1.09 / yr | $286K |
| Tornado | Medium | 0.06 / yr | $3M |
| Coastal Flood | Medium | 3.72 / yr | $597K |
| Landslide | Very Low | 0.19 / yr | $2K |
| Avalanche | Very Low | 0.01 / yr | $138 |
| Drought | Very Low | 0.79 / yr | $5K |
| Hail | Very Low | 2.34 / yr | $41K |
| Wildfire | Very Low | 0.00 / yr | $4K |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Rockland County?
Rockland County has a composite FEMA National Risk Index score of 88.4 out of 100, placing it in the Medium category and the 88th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Rockland County?
The three highest-rated hazards are Strong Wind (High, $3M EAL), Winter Weather (High, $537K EAL), Riverine Flood (Medium, $38M EAL). These account for most of the county's expected annual losses.
How does Rockland County compare to other New York counties?
Rockland County ranks #13 of 62 New York counties for overall natural disaster risk, with a medium rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Rockland County's $60M EAL is a statistical average, not a guarantee for any specific year or address.