Perry County
Illinois — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 72th
Perry County faces low composite natural disaster risk (NRI Risk Index score 72.1, 72th national percentile), driven primarily by earthquake and cold wave exposure. Expected annual loss across all 18 hazard types is $26M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Earthquake | Medium | 0.01 / yr | $10M |
| Cold Wave | Medium | 1.21 / yr | $5M |
| Strong Wind | Medium | 5.25 / yr | $1M |
| Winter Weather | Medium | 8.16 / yr | $169K |
| Heat Wave | Medium | 10.26 / yr | $1M |
| Hail | Low | 4.35 / yr | $452K |
| Landslide | Low | 0.42 / yr | $3K |
| Tornado | Low | 0.37 / yr | $2M |
| Drought | Low | 1.66 / yr | $212K |
| Riverine Flood | Low | 1.86 / yr | $6M |
| Lightning | Low | 52.13 / yr | $193K |
| Hurricane | Very Low | 0.02 / yr | $26K |
| Ice Storm | Low | 0.48 / yr | $33K |
| Wildfire | Very Low | 0.00 / yr | $1K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| 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 Perry County?
Perry County has a composite FEMA National Risk Index score of 72.1 out of 100, placing it in the Low category and the 72th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Perry County?
The three highest-rated hazards are Earthquake (Medium, $10M EAL), Cold Wave (Medium, $5M EAL), Strong Wind (Medium, $1M EAL). These account for most of the county's expected annual losses.
How does Perry County compare to other Illinois counties?
Perry County ranks #31 of 102 Illinois 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. Perry County's $26M EAL is a statistical average, not a guarantee for any specific year or address.