Iberville Parish, Louisiana Natural Disaster Risk
FEMA National Risk Index assessment · LA
LowComposite Risk Score
National percentile: 74th
Iberville Parish faces low composite natural disaster risk (NRI Risk Index score 73.7, 74th national percentile), driven primarily by hurricane and drought exposure. Expected annual loss across all 18 hazard types is $27M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
Iberville Parish carries a low composite natural disaster risk, with a National Risk Index score of 73.7 out of 100 — placing it in the 74th national percentile and below the national average for natural-disaster risk. The score blends Expected Annual Loss, Social Vulnerability, and Community Resilience across all 18 FEMA hazard types.
The county's risk is driven primarily by hurricane (tropical cyclones bringing extreme wind, rain, and storm surge) at High risk — $15M in expected annual loss and about 0.20 events per year; drought (extended dry periods that stress water supplies and agriculture) at Medium risk — $1M in expected annual loss and about 20.79 events per year; and tornado (violently rotating columns of air capable of catastrophic local damage) at Medium risk — $3M in expected annual loss and about 0.52 events per year. Across all hazards, FEMA estimates $27M in expected annual loss for a population of 30K.
Beyond physical exposure, Iberville Parish has a high social vulnerability rating (how susceptible the population is to harm) and a very high community resilience rating (its capacity to prepare for and recover from disasters). Higher vulnerability is partly offset by strong community resilience and recovery capacity.
The federal record bears this out: Iberville Parish has received 47 federal disaster declarations since 1965, including 24 for hurricane events and 11 for flood events. The most recent was Severe Winter Storm (winter storm), declared in January 2026.
Among 64 Louisiana counties, Iberville Parish ranks #28 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Hurricane | High | 0.20 / yr | $15M |
| Drought | Medium | 20.79 / yr | $1M |
| Tornado | Medium | 0.52 / yr | $3M |
| Cold Wave | Medium | 0.90 / yr | $2M |
| Heat Wave | Low | 14.75 / yr | $822K |
| Coastal Flood | Medium | 3.76 / yr | $664K |
| Lightning | Medium | 88.39 / yr | $250K |
| Strong Wind | Low | 0.98 / yr | $433K |
| Ice Storm | Low | 0.48 / yr | $59K |
| Riverine Flood | Low | 0.46 / yr | $4M |
| Earthquake | Very Low | 0.00 / yr | $89K |
| Landslide | Very Low | 0.09 / yr | $101 |
| Hail | Very Low | 1.33 / yr | $44K |
| Winter Weather | Very Low | 1.21 / yr | $8K |
| Wildfire | Very Low | 0.00 / yr | $2K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Iberville Parish has received 47 federal disaster declarations since 1965, most recently Severe Winter Storm in January 2026. Most frequent causes: Hurricane (24), Flood (11), Coastal Storm (4).
| Declared | Type | Disaster |
|---|---|---|
| January 2026 | Winter Storm | Severe Winter Storm |
| September 2024 | Hurricane | Hurricane Francine |
| September 2024 | Hurricane | Tropical Storm Francine |
| September 2021 | Coastal Storm | Tropical Storm Nicholas |
| August 2021 | Hurricane | Hurricane Ida |
| August 2021 | Hurricane | Tropical Storm Ida |
| June 2021 | Flood | Severe Storms, Tornadoes, and Flooding |
| March 2021 | Severe Ice Storm | Severe Winter Storms |
| February 2021 | Severe Ice Storm | Severe Winter Storm |
| January 2021 | Hurricane | Hurricane Zeta |
Showing the 10 most recent of 47 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Iberville Parish?
Iberville Parish has a composite FEMA National Risk Index score of 73.7 out of 100, placing it in the Low category and the 74th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Iberville Parish?
The three highest-rated hazards are Hurricane (High, $15M EAL), Drought (Medium, $1M EAL), Tornado (Medium, $3M EAL). These account for most of the county's expected annual losses.
How does Iberville Parish compare to other Louisiana counties?
Iberville Parish ranks #28 of 64 Louisiana counties for overall natural disaster risk, with a low rating.
How many federally declared disasters has Iberville Parish had?
FEMA records 47 federal disaster declarations for Iberville Parish since 1965, most often 24 for hurricane events and 11 for flood events. The most recent was Severe Winter Storm, declared in January 2026.
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. Iberville Parish's $27M EAL is a statistical average, not a guarantee for any specific year or address.