Aransas County
Texas — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 61th
Aransas County faces low composite natural disaster risk (NRI Risk Index score 61.2, 61th national percentile), driven primarily by hurricane and cold wave exposure. Expected annual loss across all 18 hazard types is $15M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hurricane | Medium | 0.14 / yr | $7M |
| Cold Wave | Medium | 2.10 / yr | $2M |
| Coastal Flood | Medium | 3.69 / yr | $647K |
| Wildfire | Very Low | 0.00 / yr | $66K |
| Heat Wave | Low | 7.66 / yr | $379K |
| Tornado | Low | 0.19 / yr | $1M |
| Riverine Flood | Low | 1.61 / yr | $5M |
| Lightning | Low | 46.89 / yr | $79K |
| Ice Storm | Low | 0.30 / yr | $22K |
| Hail | Very Low | 0.88 / yr | $49K |
| Strong Wind | Low | 0.74 / yr | $106K |
| Winter Weather | Very Low | 0.64 / yr | $10K |
| Drought | Very Low | 43.87 / yr | $1K |
| Earthquake | Very Low | 0.00 / yr | $6K |
| Landslide | Very Low | 0.02 / yr | $1 |
| Avalanche | 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 Aransas County?
Aransas County has a composite FEMA National Risk Index score of 61.2 out of 100, placing it in the Low category and the 61th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Aransas County?
The three highest-rated hazards are Hurricane (Medium, $7M EAL), Cold Wave (Medium, $2M EAL), Coastal Flood (Medium, $647K EAL). These account for most of the county's expected annual losses.
How does Aransas County compare to other Texas counties?
Aransas County ranks #101 of 254 Texas 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. Aransas County's $15M EAL is a statistical average, not a guarantee for any specific year or address.