Warren County
Missouri — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 55th
Warren County faces low composite natural disaster risk (NRI Risk Index score 55.3, 55th national percentile), driven primarily by heat wave and landslide exposure. Expected annual loss across all 18 hazard types is $27M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Heat Wave | Medium | 11.89 / yr | $6M |
| Landslide | Low | 0.62 / yr | $13K |
| Hail | Medium | 5.37 / yr | $977K |
| Earthquake | Low | 0.00 / yr | $1M |
| Ice Storm | Medium | 1.34 / yr | $216K |
| Riverine Flood | Low | 1.04 / yr | $14M |
| Wildfire | Very Low | 0.00 / yr | $102K |
| Tornado | Low | 0.28 / yr | $2M |
| Strong Wind | Medium | 5.58 / yr | $938K |
| Cold Wave | Low | 1.95 / yr | $1M |
| Winter Weather | Low | 9.05 / yr | $58K |
| Drought | Low | 2.42 / yr | $42K |
| Lightning | Low | 50.39 / yr | $167K |
| Hurricane | Very Low | 0.01 / yr | $3K |
| 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 Warren County?
Warren County has a composite FEMA National Risk Index score of 55.3 out of 100, placing it in the Low category and the 55th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Warren County?
The three highest-rated hazards are Heat Wave (Medium, $6M EAL), Landslide (Low, $13K EAL), Hail (Medium, $977K EAL). These account for most of the county's expected annual losses.
How does Warren County compare to other Missouri counties?
Warren County ranks #49 of 115 Missouri 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. Warren County's $27M EAL is a statistical average, not a guarantee for any specific year or address.