Ionia County, Michigan Natural Disaster Risk
FEMA National Risk Index assessment · MI
LowComposite Risk Score
National percentile: 56th
Ionia County faces low composite natural disaster risk (NRI Risk Index score 55.9, 56th national percentile), driven primarily by strong wind and tornado exposure. Expected annual loss across all 18 hazard types is $20M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
Ionia County carries a low composite natural disaster risk, with a National Risk Index score of 55.9 out of 100 — placing it in the 56th 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.
Risk here concentrates in strong wind (damaging straight-line winds outside of tornadoes and hurricanes) at High risk — $2M in expected annual loss and about 3.75 events per year; tornado (violently rotating columns of air capable of catastrophic local damage) at Medium risk — $4M in expected annual loss and about 0.25 events per year; and hail (ice stones from severe thunderstorms that damage property and crops) at Low risk — $664K in expected annual loss and about 2.08 events per year. Across all hazards, FEMA estimates $20M in expected annual loss for a population of 67K.
Beyond physical exposure, Ionia County has a low 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). A less vulnerable population paired with strong resilience helps the community absorb and recover from events.
The county's disaster history tells the same story: Ionia County has received 16 federal disaster declarations since 1972, including 5 for snowstorm events and 4 for flood events. The most recent was Severe Storms, Tornadoes, and Flooding (flood), declared in February 2024.
Among 83 Michigan counties, Ionia County ranks #38 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Strong Wind | High | 3.75 / yr | $2M |
| Tornado | Medium | 0.25 / yr | $4M |
| Hail | Low | 2.08 / yr | $664K |
| Ice Storm | Medium | 1.47 / yr | $256K |
| Landslide | Low | 0.13 / yr | $4K |
| Riverine Flood | Low | 0.32 / yr | $11M |
| Cold Wave | Low | 2.05 / yr | $2M |
| Winter Weather | Low | 17.95 / yr | $41K |
| Earthquake | Very Low | 0.00 / yr | $111K |
| Hurricane | Very Low | 0.01 / yr | $20K |
| Heat Wave | Very Low | 2.21 / yr | $157K |
| Lightning | Low | 32.81 / yr | $93K |
| Wildfire | Very Low | 0.00 / yr | $9K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Drought | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Ionia County has received 16 federal disaster declarations since 1972, most recently Severe Storms, Tornadoes, and Flooding in February 2024. Most frequent causes: Snowstorm (5), Flood (4), Severe Storm (4).
| Declared | Type | Disaster |
|---|---|---|
| February 2024 | Flood | Severe Storms, Tornadoes, and Flooding |
| July 2021 | Severe Storm | Severe Storms, Flooding, and Tornadoes |
| March 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| June 2013 | Flood | Flooding |
| September 2005 | Hurricane | Hurricane Katrina Evacuation |
| June 2004 | Severe Storm | Severe Storms, Tornadoes, and Flooding |
| January 2001 | Snowstorm | Snow |
| January 1999 | Snowstorm | Mi - Severe Weather 1/2 /99 |
| June 1998 | Severe Storm | Severe Storms |
Showing the 10 most recent of 16 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Ionia County?
Ionia County has a composite FEMA National Risk Index score of 55.9 out of 100, placing it in the Low category and the 56th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Ionia County?
The three highest-rated hazards are Strong Wind (High, $2M EAL), Tornado (Medium, $4M EAL), Hail (Low, $664K EAL). These account for most of the county's expected annual losses.
How does Ionia County compare to other Michigan counties?
Ionia County ranks #38 of 83 Michigan counties for overall natural disaster risk, with a low rating.
How many federally declared disasters has Ionia County had?
FEMA records 16 federal disaster declarations for Ionia County since 1972, most often 5 for snowstorm events and 4 for flood events. The most recent was Severe Storms, Tornadoes, and Flooding, declared in February 2024.
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. Ionia County's $20M EAL is a statistical average, not a guarantee for any specific year or address.