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Michigan · FEMA + NOAA + National Risk Index

Isabella County, MI

11 FEMA disaster declarations (1975-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.

11
FEMA declarations
6
Major disasters
66
NRI risk · Relatively Low
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Isabella County. Its 11 FEMA declarations are 10% above the Michigan county mean and exceed the count for 12% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 34%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 34%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
11
FEMA declarations vs 21 national county avg
37
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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How does Isabella County compare?

Isabella County vs. all counties in this dataset

FEMA disaster declarations, all-time

11 12th percentile higher than 12% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-03

Isabella County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Michigan county average

0/100100/100Michigan avg50/10066.1/100
FEMA National Risk Index composite score vs. the Michigan county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Isabella County is led by Riverine Flooding (about $12.3M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Winter Weather carries the highest National Risk Index rating (Relatively High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Isabella County's hazard record show?

FEMA National Risk Index

This county carries a high composite score on FEMA's National Risk Index, 66.1/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $22.4M in annualized losses), and a Relatively Moderate social-vulnerability profile combined with Relatively High community resilience shapes how much of that raw exposure becomes realized harm. Of the 18 hazards FEMA models, Winter Weather stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 17 times per year here, based on 318 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 11 entries for Isabella County, including 6 Major Disaster records, 10% above the Michigan county mean. Across the 45-year span, that works out to 0.2 declarations a year. Flood leads the file with 3 entries. Declaration type records the federal action taken, not every assistance program approved.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 37 claims and $542.7K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.

The declaration register points in the busier direction. Isabella County's 11 federal records stand 10% above the Michigan county mean of 10.0. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

51 /100

Historical Activity Index

High historical activity

Isabella County, MI · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) Moderate
8/30

11 OpenFEMA declarations, full ingest window (0.5x national county average)

County Disaster Density High
14/25

11 declarations (1.1x state county average of 10)

Major Disaster Share High
14/25

6 of 11 declarations are major disasters (55%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Isabella County

Historical Declaration Activity

Activity Band

High

vs. Michigan Avg

+10%

State avg: 10.0

vs. National Avg

-47%

National avg: 20.7

Avg Per Year

0.2

Over 45 years

FEMA NRI 8-hazard radar - Isabella County

Isabella County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 8, Tornado 48, Wildfire 8, Drought 0, Heat Wave 8, Winter Storm 70. The simple mean of these eight displayed scores is 22 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 22 8-hazard mean
Isabella County NRI risk profile FIPS 26073 · displayed-hazard mean 22/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

11

Low volume

Major Disaster share

55%

Major-heavy

NRI risk score

66

Relatively Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Isabella County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Winter Weather Relatively High an average of 17 times per year
Strong Wind Relatively High an average of 2.8 times per year
Tornado Relatively Moderate roughly once every 5 years
Hail Relatively Moderate an average of 1.8 times per year
Cold Wave Relatively Moderate an average of 2.2 times per year
Riverine Flooding Relatively Low roughly once every 2 years
Ice Storm Relatively Moderate roughly once every 1 years
Lightning Relatively Low an average of 30 times per year
Landslide Very Low roughly once every 11 years
Heat Wave Very Low 1.8 modeled event-days per year
Earthquake Very Low roughly once every 1,869 years
Hurricane Very Low roughly once every 79 years
Wildfire Very Low roughly once every 17,039 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Flood 3
Biological 2
Severe Storm 2
Snowstorm 2
Hurricane 1
Drought 1

What Flood declarations mean here

Flood is the most frequent declaration type on Isabella County's record, 27% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 6 54.5%

of all 11 declarations

Emergency - 5 45.5%

of all 11 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2017 1
2005 1
2001 1
1986 1
1985 1
1978 1
1977 1
1976 1
1975 1

Disaster Declarations

How the 11 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 11 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4494 COVID-19 PANDEMIC DR Biological 2020-03-27
3455 COVID-19 EM Biological 2020-03-13
4326 SEVERE STORMS AND FLOODING DR Severe Storm 2017-08-02
3225 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
3160 SNOW EM Snowstorm 2001-01-10
774 SEVERE STORMS & FLOODING DR Flood 1986-09-18
744 SEVERE STORMS AND FLOODING DR Flood 1985-09-18
3057 BLIZZARDS & SNOWSTORMS EM Snowstorm 1978-01-27
3035 DROUGHT EM Drought 1977-03-02
495 SEVERE STORMS, TORNADOES, ICING & FLOODING DR Severe Storm 1976-03-19
486 SEVERE STORMS, HIGH WINDS & FLOODING DR Flood 1975-09-30

Storm Events in Michigan

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Isabella County.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 3,010 10 18 $173.8M
Winter Storm 1,486 3 11 $41.8M
Winter Weather 1,254 21 38 $892.0K
Hail 962 0 0 $77.1M
High Wind 389 3 2 $668.9M

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

NFIP Flood Insurance Claims

Total Claims

37

Total Paid

$542.7K

Avg Per Claim

$14.7K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 66.1/100

Expected Annual Loss

Relatively Low

$22.4M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively High

Hazard Risk Breakdown

Winter Weather Relatively High
Strong Wind Relatively High
Tornado Relatively Moderate
Hail Relatively Moderate
Cold Wave Relatively Moderate
Riverine Flooding Relatively Low
Ice Storm Relatively Moderate
Lightning Relatively Low
Landslide Very Low
Heat Wave Very Low
Earthquake Very Low
Hurricane Very Low
Wildfire Very Low
Drought No Rating

Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

The model's sharpest exposure here: Winter Weather

Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.

Worth noting for Isabella County: the model and the federal record do NOT point at the same hazard. Winter Weather carries the highest modeled rating (Relatively High), while the county's declaration history is led by Flood. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Isabella County's closest FEMA peer: Laclede County, MO

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Isabella County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Isabella County - capture-dated entries only.

Further reading for this county

Most disaster-prone counties

With 11 FEMA declarations, Isabella County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Isabella County?
The most common disaster type in Isabella County is Flood, with 3 declarations. Other disaster types include Biological (2), Severe Storm (2), Snowstorm (2).
How does Isabella County's FEMA declaration record compare with the Michigan average?
FEMA lists 11 declaration records for Isabella County. That is 10% above the Michigan county mean of 10.0. Its count is also 47% below the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Isabella County received?
Isabella County has received 6 major disaster declarations, representing 55% of all 11 disaster declarations.
How many flood insurance claims has Isabella County filed?
Isabella County has 37 National Flood Insurance Program (NFIP) claims totaling $542.7K in payments, with an average of $14.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Isabella County?
No. In Isabella County, Winter Weather has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $12.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Isabella County?
The most active year for disaster declarations in Isabella County was 2020, with 2 declarations. The county has FEMA disaster data spanning 1975 to 2020.
What is the FEMA National Risk Index score for Isabella County?
According to the FEMA National Risk Index, Isabella County, Michigan has an overall risk score of 66.1 out of 100 (Relatively Low). On social vulnerability the county rates Relatively Moderate; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $22.4M in annualized losses.
Which natural hazard poses the greatest risk to Isabella County?
FEMA's NRI data points to Isabella County as of the latest release is Winter Weather (risk rating: Relatively High). Other significant hazards include Strong Wind (Relatively High) and Tornado (Relatively Moderate). FEMA's modeled event frequency puts winter weather here at an average of 17 times per year, drawn from 318 historical events on record. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for Isabella County

Isabella County, MI has 11 federal declaration records, 10% more than the Michigan county mean of 10; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 6 of 11 records; the category describes past federal action, not the next likely hazard. Michigan overview
  • The state benchmark and national rank point the same way: this count tops the Michigan mean and the totals for 12% of 3,266 U.S. counties. Most-disaster rankings
  • A short NFIP claims file cannot establish low flood exposure; the data guide explains the limits of each federal measure. Disaster-data guide

An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.