St. John the Baptist Parish
Louisiana — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 82th
St. John the Baptist Parish faces medium composite natural disaster risk (NRI Risk Index score 81.5, 82th national percentile), driven primarily by hurricane and drought exposure. Expected annual loss across all 18 hazard types is $46M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hurricane | High | 0.28 / yr | $28M |
| Drought | Medium | 23.56 / yr | $1M |
| Tornado | Medium | 0.31 / yr | $4M |
| Coastal Flood | Medium | 3.76 / yr | $2M |
| Heat Wave | Low | 14.74 / yr | $1M |
| Lightning | Medium | 87.57 / yr | $519K |
| Riverine Flood | Low | 0.43 / yr | $9M |
| Cold Wave | Low | 0.74 / yr | $1M |
| Hail | Low | 1.31 / yr | $243K |
| Ice Storm | Low | 0.31 / yr | $49K |
| Earthquake | Very Low | 0.00 / yr | $131K |
| Winter Weather | Low | 0.89 / yr | $29K |
| Strong Wind | Low | 1.26 / yr | $274K |
| Wildfire | Very Low | 0.00 / yr | $4K |
| Landslide | Very Low | 0.03 / yr | $13 |
| 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 St. John the Baptist Parish?
St. John the Baptist Parish has a composite FEMA National Risk Index score of 81.5 out of 100, placing it in the Medium category and the 82th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in St. John the Baptist Parish?
The three highest-rated hazards are Hurricane (High, $28M EAL), Drought (Medium, $1M EAL), Tornado (Medium, $4M EAL). These account for most of the county's expected annual losses.
How does St. John the Baptist Parish compare to other Louisiana counties?
St. John the Baptist Parish ranks #24 of 64 Louisiana 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. St. John the Baptist Parish's $46M EAL is a statistical average, not a guarantee for any specific year or address.