Isabella County, MI
FEMA National Risk Index scores, disaster declarations & hazard data
Isabella County has experienced 11 federally declared disasters since 1975, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Isabella County's highest-rated hazards are winter weather, strong wind, and tornado, with its top risk rated "Relatively High" by FEMA's National Risk Index.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Isabella County has been designated in 11 declarations since 1975, covering 6 disaster types including flood (3), biological (2), severe storm (2).
| Year | Type | Event name |
|---|---|---|
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2017 | Severe Storm | Severe Storms And Flooding |
| 2005 | Hurricane | Hurricane Katrina Evacuation |
| 2001 | Snowstorm | Snow |
| 1986 | Flood | Severe Storms & Flooding |
| 1985 | Flood | Severe Storms And Flooding |
| 1978 | Snowstorm | Blizzards & Snowstorms |
| 1977 | Drought | Drought |
| 1976 | Severe Storm | Severe Storms, Tornadoes, Icing & Flooding |
Showing the 10 most recent of 11 total declarations since 1975.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Very Low | 18.4 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 71.5 | 4 | 0 | $70.3M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 37 | — | — | — |
| Heat Wave | Very Low | 38 | 1 | 0 | — |
| Tornado | Relatively Moderate | 80.2 | 0 | 0 | — |
| Hurricane | Very Low | 33 | 0 | 0 | — |
| Hail | Relatively Moderate | 79.6 | 3 | 0 | $35K |
| Strong Wind | Relatively High | 90 | 0 | 0 | — |
| Winter Weather | Relatively High | 95.1 | 0 | 0 | — |
| Ice Storm | Relatively Moderate | 62.7 | — | — | — |
| Cold Wave | Relatively Moderate | 77.5 | — | — | — |
| Lightning | Relatively Low | 54.9 | 0 | 0 | — |
| Drought | No Rating | 0 | 0 | 0 | — |
| Landslide | Very Low | 44.1 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
Isabella County ranks in the 57th percentile (Moderate) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 57th | Moderate |
| Socioeconomic status | 79th | High |
| Household characteristics | 2nd | Very low |
| Racial & ethnic minority status | 44th | Low |
| Housing type & transportation | 89th | High |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 8th | Very Low |
| Risk to homes | 8th | Very Low |
| Buildings in direct exposure zone | 50.7% | — |
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in Isabella County?
According to the FEMA National Risk Index, the highest-risk hazards in Isabella County, Michigan are winter weather, strong wind, and tornado. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Isabella County received federal disaster declarations?
Yes. Isabella County has received 11 federal disaster declarations since 1975, including declarations in 2020. The most common disaster type on record is flood (3 declarations).
Has Isabella County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Isabella County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Isabella County's natural hazard risk compare to nearby counties?
Among neighboring counties, Midland County, MI has the highest overall natural hazard risk (Relatively Low) and Gladwin County, MI has the lowest (Very Low). Isabella County is rated Relatively Low overall.
How is Isabella County's composite disaster risk index calculated?
Isabella County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. Isabella County's composite score of 66 means its overall natural hazard risk is higher than 66% of US counties.