De Witt County
Illinois — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 29th
De Witt County faces very low composite natural disaster risk (NRI Risk Index score 29.3, 29th national percentile), driven primarily by drought and cold wave exposure. Expected annual loss across all 18 hazard types is $10M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Drought | Medium | 3.31 / yr | $1M |
| Cold Wave | Medium | 4.16 / yr | $2M |
| Earthquake | Low | 0.00 / yr | $630K |
| Heat Wave | Low | 6.79 / yr | $343K |
| Landslide | Very Low | 0.08 / yr | $1K |
| Strong Wind | Low | 5.12 / yr | $477K |
| Tornado | Low | 0.46 / yr | $1M |
| Hail | Low | 3.24 / yr | $201K |
| Ice Storm | Low | 1.62 / yr | $37K |
| Winter Weather | Low | 9.42 / yr | $30K |
| Riverine Flood | Very Low | 0.68 / yr | $4M |
| Lightning | Very Low | 47.22 / yr | $72K |
| Hurricane | Very Low | 0.01 / yr | $6K |
| Wildfire | Very Low | 0.00 / yr | $807 |
| 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 De Witt County?
De Witt County has a composite FEMA National Risk Index score of 29.3 out of 100, placing it in the Very Low category and the 29th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in De Witt County?
The three highest-rated hazards are Drought (Medium, $1M EAL), Cold Wave (Medium, $2M EAL), Earthquake (Low, $630K EAL). These account for most of the county's expected annual losses.
How does De Witt County compare to other Illinois counties?
De Witt County ranks #81 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. De Witt County's $10M EAL is a statistical average, not a guarantee for any specific year or address.