Sullivan County
Indiana — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 21th
Sullivan County faces very low composite natural disaster risk (NRI Risk Index score 20.6, 21th national percentile), driven primarily by earthquake and drought exposure. Expected annual loss across all 18 hazard types is $8M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Earthquake | Low | 0.00 / yr | $1M |
| Drought | Low | 2.24 / yr | $239K |
| Landslide | Very Low | 0.23 / yr | $2K |
| Winter Weather | Low | 7.58 / yr | $75K |
| Strong Wind | Low | 4.34 / yr | $596K |
| Tornado | Low | 0.31 / yr | $1M |
| Heat Wave | Low | 6.11 / yr | $350K |
| Hail | Low | 3.12 / yr | $241K |
| Cold Wave | Low | 1.58 / yr | $696K |
| Ice Storm | Low | 0.56 / yr | $49K |
| Hurricane | Very Low | 0.02 / yr | $9K |
| Riverine Flood | Very Low | 3.57 / yr | $3M |
| Lightning | Very Low | 49.85 / yr | $42K |
| 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 Sullivan County?
Sullivan County has a composite FEMA National Risk Index score of 20.6 out of 100, placing it in the Very Low category and the 21th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Sullivan County?
The three highest-rated hazards are Earthquake (Low, $1M EAL), Drought (Low, $239K EAL), Landslide (Very Low, $2K EAL). These account for most of the county's expected annual losses.
How does Sullivan County compare to other Indiana counties?
Sullivan County ranks #78 of 92 Indiana 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. Sullivan County's $8M EAL is a statistical average, not a guarantee for any specific year or address.