Jasper County
Iowa — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 44th
Jasper County faces low composite natural disaster risk (NRI Risk Index score 43.7, 44th national percentile), driven primarily by drought and strong wind exposure. Expected annual loss across all 18 hazard types is $16M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Drought | High | 5.15 / yr | $3M |
| Strong Wind | Medium | 6.40 / yr | $2M |
| Hail | Medium | 6.05 / yr | $969K |
| Landslide | Low | 0.26 / yr | $10K |
| Tornado | Medium | 0.73 / yr | $3M |
| Winter Weather | Medium | 14.32 / yr | $132K |
| Ice Storm | Low | 0.83 / yr | $117K |
| Wildfire | Very Low | 0.00 / yr | $64K |
| Heat Wave | Low | 6.53 / yr | $433K |
| Riverine Flood | Low | 1.79 / yr | $6M |
| Cold Wave | Low | 6.16 / yr | $540K |
| Lightning | Low | 43.64 / yr | $133K |
| Earthquake | Very Low | 0.00 / yr | $74K |
| 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 Jasper County?
Jasper County has a composite FEMA National Risk Index score of 43.7 out of 100, placing it in the Low category and the 44th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Jasper County?
The three highest-rated hazards are Drought (High, $3M EAL), Strong Wind (Medium, $2M EAL), Hail (Medium, $969K EAL). These account for most of the county's expected annual losses.
How does Jasper County compare to other Iowa counties?
Jasper County ranks #34 of 99 Iowa 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. Jasper County's $16M EAL is a statistical average, not a guarantee for any specific year or address.