Piatt County
Illinois — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 35th
Piatt County faces very low composite natural disaster risk (NRI Risk Index score 35.0, 35th national percentile), driven primarily by drought and earthquake exposure. Expected annual loss across all 18 hazard types is $13M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Drought | Medium | 1.66 / yr | $2M |
| Earthquake | Low | 0.00 / yr | $741K |
| Cold Wave | Low | 3.84 / yr | $2M |
| Strong Wind | Medium | 5.03 / yr | $681K |
| Tornado | Low | 0.49 / yr | $1M |
| Riverine Flood | Low | 0.71 / yr | $6M |
| Hail | Low | 3.10 / yr | $234K |
| Heat Wave | Low | 6.63 / yr | $292K |
| Winter Weather | Low | 9.26 / yr | $54K |
| Landslide | Very Low | 0.08 / yr | $443 |
| Ice Storm | Low | 1.44 / yr | $36K |
| Hurricane | Very Low | 0.01 / yr | $8K |
| Lightning | Very Low | 47.69 / yr | $64K |
| 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 Piatt County?
Piatt County has a composite FEMA National Risk Index score of 35.0 out of 100, placing it in the Very Low category and the 35th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Piatt County?
The three highest-rated hazards are Drought (Medium, $2M EAL), Earthquake (Low, $741K EAL), Cold Wave (Low, $2M EAL). These account for most of the county's expected annual losses.
How does Piatt County compare to other Illinois counties?
Piatt County ranks #75 of 102 Illinois counties for overall natural disaster risk, with a very 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. Piatt County's $13M EAL is a statistical average, not a guarantee for any specific year or address.