Green County
Wisconsin — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 46th
Green County faces low composite natural disaster risk (NRI Risk Index score 46.4, 46th national percentile), driven primarily by hail and landslide exposure. Expected annual loss across all 18 hazard types is $18M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hail | Medium | 3.64 / yr | $2M |
| Landslide | Low | 0.31 / yr | $34K |
| Cold Wave | Medium | 5.74 / yr | $5M |
| Tornado | Medium | 0.46 / yr | $3M |
| Strong Wind | Medium | 4.74 / yr | $822K |
| Heat Wave | Low | 3.74 / yr | $509K |
| Riverine Flood | Low | 1.68 / yr | $7M |
| Ice Storm | Low | 0.82 / yr | $72K |
| Drought | Low | 7.22 / yr | $45K |
| Wildfire | Very Low | 0.00 / yr | $18K |
| Winter Weather | Low | 15.11 / yr | $36K |
| Lightning | Low | 38.37 / yr | $130K |
| Earthquake | Very Low | 0.00 / yr | $81K |
| 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 Green County?
Green County has a composite FEMA National Risk Index score of 46.4 out of 100, placing it in the Low category and the 46th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Green County?
The three highest-rated hazards are Hail (Medium, $2M EAL), Landslide (Low, $34K EAL), Cold Wave (Medium, $5M EAL). These account for most of the county's expected annual losses.
How does Green County compare to other Wisconsin counties?
Green County ranks #55 of 72 Wisconsin 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. Green County's $18M EAL is a statistical average, not a guarantee for any specific year or address.