Clark County
Indiana — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 81th
Clark County faces medium composite natural disaster risk (NRI Risk Index score 81.4, 81th national percentile), driven primarily by strong wind and tornado exposure. Expected annual loss across all 18 hazard types is $54M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Strong Wind | High | 5.78 / yr | $5M |
| Tornado | High | 0.27 / yr | $15M |
| Earthquake | Low | 0.00 / yr | $3M |
| Landslide | Low | 0.30 / yr | $29K |
| Riverine Flood | Medium | 2.25 / yr | $25M |
| Cold Wave | Medium | 1.42 / yr | $4M |
| Lightning | Medium | 50.85 / yr | $819K |
| Ice Storm | Medium | 0.80 / yr | $359K |
| Heat Wave | Low | 5.47 / yr | $684K |
| Winter Weather | Low | 10.32 / yr | $94K |
| Hail | Low | 3.52 / yr | $258K |
| Drought | Low | 3.01 / yr | $81K |
| Wildfire | Very Low | 0.00 / yr | $10K |
| Hurricane | Very Low | 0.01 / yr | $4K |
| 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 Clark County?
Clark County has a composite FEMA National Risk Index score of 81.4 out of 100, placing it in the Medium category and the 81th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Clark County?
The three highest-rated hazards are Strong Wind (High, $5M EAL), Tornado (High, $15M EAL), Earthquake (Low, $3M EAL). These account for most of the county's expected annual losses.
How does Clark County compare to other Indiana counties?
Clark County ranks #10 of 92 Indiana counties for overall natural disaster risk, with a medium 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. Clark County's $54M EAL is a statistical average, not a guarantee for any specific year or address.