Lake County
Tennessee — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 48th
Lake County faces low composite natural disaster risk (NRI Risk Index score 47.8, 48th national percentile), driven primarily by earthquake and drought exposure. Expected annual loss across all 18 hazard types is $10M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Earthquake | Medium | 0.02 / yr | $6M |
| Drought | Medium | 13.39 / yr | $396K |
| Heat Wave | Low | 15.53 / yr | $463K |
| Ice Storm | Medium | 1.22 / yr | $105K |
| Cold Wave | Low | 2.53 / yr | $1M |
| Tornado | Low | 0.17 / yr | $888K |
| Winter Weather | Low | 7.32 / yr | $30K |
| Lightning | Low | 57.81 / yr | $82K |
| Strong Wind | Low | 2.47 / yr | $191K |
| Hurricane | Very Low | 0.01 / yr | $8K |
| Hail | Very Low | 3.15 / yr | $26K |
| Landslide | Very Low | 0.21 / yr | $17 |
| Riverine Flood | Very Low | 0.54 / yr | $751K |
| Wildfire | Very Low | 0.00 / yr | $429 |
| 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 Lake County?
Lake County has a composite FEMA National Risk Index score of 47.8 out of 100, placing it in the Low category and the 48th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Lake County?
The three highest-rated hazards are Earthquake (Medium, $6M EAL), Drought (Medium, $396K EAL), Heat Wave (Low, $463K EAL). These account for most of the county's expected annual losses.
How does Lake County compare to other Tennessee counties?
Lake County ranks #56 of 95 Tennessee 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. Lake County's $10M EAL is a statistical average, not a guarantee for any specific year or address.