Dallas County
Texas — Natural Disaster Risk Assessment
Very HighComposite Risk Score
National percentile: 100th
Dallas County faces very high composite natural disaster risk (NRI Risk Index score 99.7, 100th national percentile), driven primarily by hail and cold wave exposure. Expected annual loss across all 18 hazard types is $973M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hail | Very High | 8.92 / yr | $128M |
| Cold Wave | Very High | 0.95 / yr | $98M |
| Heat Wave | Very High | 19.11 / yr | $288M |
| Tornado | Very High | 0.93 / yr | $115M |
| Ice Storm | Very High | 1.23 / yr | $5M |
| Riverine Flood | Very High | 4.61 / yr | $324M |
| Winter Weather | Very High | 4.05 / yr | $1M |
| Strong Wind | Very High | 4.36 / yr | $5M |
| Lightning | Very High | 56.16 / yr | $3M |
| Earthquake | Medium | 0.00 / yr | $5M |
| Wildfire | Low | 0.00 / yr | $349K |
| Hurricane | Low | 0.01 / yr | $676K |
| Landslide | Very Low | 0.17 / yr | $917 |
| Drought | Low | 30.08 / yr | $32K |
| 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 Dallas County?
Dallas County has a composite FEMA National Risk Index score of 99.7 out of 100, placing it in the Very High category and the 100th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Dallas County?
The three highest-rated hazards are Hail (Very High, $128M EAL), Cold Wave (Very High, $98M EAL), Heat Wave (Very High, $288M EAL). These account for most of the county's expected annual losses.
How does Dallas County compare to other Texas counties?
Dallas County ranks #2 of 254 Texas counties for overall natural disaster risk, with a very high 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. Dallas County's $973M EAL is a statistical average, not a guarantee for any specific year or address.