LaSalle Parish
Louisiana — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 12th
LaSalle Parish faces very low composite natural disaster risk (NRI Risk Index score 12.2, 12th national percentile), driven primarily by hurricane and heat wave exposure. Expected annual loss across all 18 hazard types is $5M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hurricane | Low | 0.07 / yr | $334K |
| Heat Wave | Low | 21.63 / yr | $619K |
| Ice Storm | Low | 0.94 / yr | $61K |
| Earthquake | Very Low | 0.00 / yr | $109K |
| Lightning | Low | 72.38 / yr | $116K |
| Strong Wind | Low | 2.67 / yr | $307K |
| Drought | Low | 32.59 / yr | $31K |
| Tornado | Low | 0.51 / yr | $499K |
| Landslide | Very Low | 0.19 / yr | $217 |
| Riverine Flood | Very Low | 0.75 / yr | $3M |
| Cold Wave | Very Low | 0.58 / yr | $248K |
| Wildfire | Very Low | 0.00 / yr | $7K |
| Hail | Very Low | 2.54 / yr | $64K |
| Winter Weather | Very Low | 2.11 / yr | $9K |
| 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 LaSalle Parish?
LaSalle Parish has a composite FEMA National Risk Index score of 12.2 out of 100, placing it in the Very Low category and the 12th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in LaSalle Parish?
The three highest-rated hazards are Hurricane (Low, $334K EAL), Heat Wave (Low, $619K EAL), Ice Storm (Low, $61K EAL). These account for most of the county's expected annual losses.
How does LaSalle Parish compare to other Louisiana counties?
LaSalle Parish ranks #63 of 64 Louisiana counties for overall natural disaster risk, with a very 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. LaSalle Parish's $5M EAL is a statistical average, not a guarantee for any specific year or address.