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Michigan · FEMA + NOAA + National Risk Index

Iosco County, MI

11 FEMA disaster declarations (1973-2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

11
FEMA declarations
6
Major disasters
38
NRI risk · Very Low
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Iosco 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 safer than 38%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 38%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
11
FEMA declarations vs 21 national county avg
80
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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FEMA OpenFEMA declaration desk

County FIPS 26069 · Iosco County 11 declarations · rank 2851/3,266

DECL-MID · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-MID 11
  • MAJOR-MID 55%
  • RANK-LOWER #2,851
  • PHOTO-FINISH Meeker
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Flood
  • VS-ST-ABOVE +10%

Nearest declaration peer: Meeker, MN (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Michigan state profile

Iosco County among counties with fewer federal records

FEMA declaration records among Iosco County and nearest peers by total count

declarations

What this shows Iosco County carries 11 FEMA declaration records, ranked 2851 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

Iosco County versus quieter counties in this dataset

Iosco County among lower-declaration counties nationally

FEMA disaster declarations, all-time · Iosco County

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 · 2026-08-25

Iosco County's FEMA Risk Index score

0/100100/100Michigan avg50/10037.8/100
FEMA National Risk Index composite score vs. the Michigan county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Iosco County is led by Riverine Flooding (about $5.1M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Winter Weather carries the highest National Risk Index rating (Relatively Moderate). 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 Iosco County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 80 paid claims, totaling $815.6K. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $10.2K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

The declaration register points in the busier direction. Iosco 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.

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 37.8/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $8.3M in annualized losses). Social vulnerability (Very High) and community resilience (Relatively High) both factor into how that raw exposure plays out on the ground. Among the 18 modeled hazards, Winter Weather carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 13 times per year here, based on 246 historical events on record.

51 /100

Historical Activity Index

High historical activity

Iosco 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 Iosco County

FEMA NRI 8-hazard radar - Iosco County

Iosco County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 8, Tornado 25, Wildfire 8, Drought 0, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 16 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 16 8-hazard mean
Iosco County NRI risk profile FIPS 26069 · displayed-hazard mean 16/100
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

38

Very Low

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

How often does each hazard strike Iosco 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 Moderate an average of 13 times per year
Cold Wave Relatively Moderate an average of 2.2 times per year
Lightning Relatively Moderate an average of 27 times per year
Wildfire Very Low roughly once every 2,385 years
Hail Relatively Low an average of 1.3 times per year
Riverine Flooding Relatively Low roughly once every 6 years
Strong Wind Relatively Moderate an average of 1.5 times per year
Coastal Flooding Very Low roughly once every 73 years
Hurricane Very Low roughly once every 72 years
Tornado Relatively Low roughly once every 4 years
Landslide Very Low roughly once every 11 years
Ice Storm Very Low roughly once every 5 years
Earthquake Very Low roughly once every 2,532 years
Heat Wave Very Low 1 modeled event-day per year

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

Disaster Types

Flood 4
Biological 2
Snowstorm 2
Dam/Levee Break 1
Hurricane 1
Drought 1

What Flood declarations mean here

Flood is the most frequent declaration type on Iosco County's record, 36% 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
2026 1
2020 3
2005 1
1999 1
1985 1
1978 1
1977 1
1973 2

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
4925 SEVERE STORMS, TORNADOES, AND FLOODING DR Flood 2026-06-30
4547 SEVERE STORMS AND FLOODING DR Dam/Levee Break 2020-07-09
4494 COVID-19 PANDEMIC DR Biological 2020-03-27
3455 COVID-19 EM Biological 2020-03-13
3225 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
3137 MI - SEVERE WEATHER 1/2 /99 EM Snowstorm 1999-01-27
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
371 SEVERE STORMS & FLOODING DR Flood 1973-04-12
363 SEVERE STORMS & FLOODING DR Flood 1972-12-01

Storm Events in Michigan

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

80

Total Paid

$815.6K

Avg Per Claim

$10.2K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 37.8/100

Expected Annual Loss

Very Low

$8.3M/year

Social Vulnerability

Very High

Community Resilience

Relatively High

Hazard Risk Breakdown

Winter Weather Relatively Moderate
Cold Wave Relatively Moderate
Lightning Relatively Moderate
Wildfire Very Low
Hail Relatively Low
Riverine Flooding Relatively Low
Strong Wind Relatively Moderate
Coastal Flooding Very Low
Hurricane Very Low
Tornado Relatively Low
Landslide Very Low
Ice Storm Very Low
Earthquake Very Low
Heat Wave 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 Iosco County: the model and the federal record do NOT point at the same hazard. Winter Weather carries the highest modeled rating (Relatively Moderate), 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

Iosco County's closest FEMA peer: Clark County, OH

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Iosco 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 Iosco County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Iosco County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Further reading for this county

Understanding disaster data

Iosco County's NFIP claims file (80 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Iosco County?
The most common disaster type in Iosco County is Flood, with 4 declarations. Other disaster types include Biological (2), Snowstorm (2), Dam/Levee Break (1).
How does Iosco County's FEMA declaration record compare with the Michigan average?
FEMA lists 11 declaration records for Iosco 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 Iosco County received?
Iosco County has received 6 major disaster declarations, representing 55% of all 11 disaster declarations.
How many flood insurance claims has Iosco County filed?
Iosco County has 80 National Flood Insurance Program (NFIP) claims totaling $815.6K in payments, with an average of $10.2K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Iosco County?
No. In Iosco County, Winter Weather has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $5.1M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Iosco County?
The most active year for disaster declarations in Iosco County was 2020, with 3 declarations. The county has FEMA disaster data spanning 1973 to 2026.
What is the FEMA National Risk Index score for Iosco County?
According to the FEMA National Risk Index, Iosco County, Michigan has an overall risk score of 37.8 out of 100 (Very Low). The county's social vulnerability rating is Very High and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $8.3M in annualized losses.
Which natural hazard poses the greatest risk to Iosco County?
FEMA's NRI data points to Iosco County as of the latest release is Winter Weather (risk rating: Relatively Moderate). Other significant hazards include Cold Wave (Relatively Moderate) and Lightning (Relatively Moderate). FEMA's modeled event frequency puts winter weather here at an average of 13 times per year, drawn from 246 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.

FEMA OpenFEMA declarations + NRI for Iosco County · vintage 2026-08-25 · Methodology · Michigan profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events