Plaquemines Parish
Louisiana — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 73th
Plaquemines Parish faces low composite natural disaster risk (NRI Risk Index score 72.9, 73th national percentile), driven primarily by hurricane and coastal flood exposure. Expected annual loss across all 18 hazard types is $28M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hurricane | High | 0.27 / yr | $19M |
| Coastal Flood | High | 4.02 / yr | $3M |
| Drought | Medium | 27.63 / yr | $961K |
| Heat Wave | Low | 11.07 / yr | $589K |
| Lightning | Low | 81.19 / yr | $216K |
| Cold Wave | Low | 0.64 / yr | $709K |
| Tornado | Low | 0.68 / yr | $773K |
| Earthquake | Very Low | 0.00 / yr | $64K |
| Hail | Very Low | 0.45 / yr | $96K |
| Riverine Flood | Very Low | 0.29 / yr | $3M |
| Wildfire | Very Low | 0.00 / yr | $7K |
| Winter Weather | Very Low | 0.27 / yr | $13K |
| Landslide | Very Low | 0.08 / yr | $61 |
| Ice Storm | Very Low | 0.01 / yr | $7K |
| Strong Wind | Very Low | 0.51 / yr | $28K |
| 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 Plaquemines Parish?
Plaquemines Parish has a composite FEMA National Risk Index score of 72.9 out of 100, placing it in the Low category and the 73th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Plaquemines Parish?
The three highest-rated hazards are Hurricane (High, $19M EAL), Coastal Flood (High, $3M EAL), Drought (Medium, $961K EAL). These account for most of the county's expected annual losses.
How does Plaquemines Parish compare to other Louisiana counties?
Plaquemines Parish ranks #30 of 64 Louisiana 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. Plaquemines Parish's $28M EAL is a statistical average, not a guarantee for any specific year or address.