Allegany County
Maryland — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 59th
Allegany County faces low composite natural disaster risk (NRI Risk Index score 58.5, 59th national percentile), driven primarily by landslide and strong wind exposure. Expected annual loss across all 18 hazard types is $15M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | Medium | 0.90 / yr | $66K |
| Strong Wind | Medium | 3.49 / yr | $803K |
| Riverine Flood | Medium | 2.00 / yr | $11M |
| Winter Weather | Medium | 19.63 / yr | $112K |
| Heat Wave | Low | 1.51 / yr | $766K |
| Hurricane | Low | 0.03 / yr | $359K |
| Hail | Low | 2.32 / yr | $331K |
| Avalanche | Very Low | 0.01 / yr | $853 |
| Lightning | Low | 37.99 / yr | $196K |
| Earthquake | Very Low | 0.00 / yr | $237K |
| Drought | Low | 2.33 / yr | $86K |
| Ice Storm | Low | 0.34 / yr | $39K |
| Tornado | Low | 0.14 / yr | $520K |
| Wildfire | Very Low | 0.00 / yr | $6K |
| Cold Wave | Very Low | 4.15 / yr | $124K |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| 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 Allegany County?
Allegany County has a composite FEMA National Risk Index score of 58.5 out of 100, placing it in the Low category and the 59th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Allegany County?
The three highest-rated hazards are Landslide (Medium, $66K EAL), Strong Wind (Medium, $803K EAL), Riverine Flood (Medium, $11M EAL). These account for most of the county's expected annual losses.
How does Allegany County compare to other Maryland counties?
Allegany County ranks #15 of 24 Maryland counties for overall natural disaster risk, with a low 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. Allegany County's $15M EAL is a statistical average, not a guarantee for any specific year or address.